CN109585715A - Battery and battery modules, battery case and the vehicle for using the battery - Google Patents
Battery and battery modules, battery case and the vehicle for using the battery Download PDFInfo
- Publication number
- CN109585715A CN109585715A CN201710911512.7A CN201710911512A CN109585715A CN 109585715 A CN109585715 A CN 109585715A CN 201710911512 A CN201710911512 A CN 201710911512A CN 109585715 A CN109585715 A CN 109585715A
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- battery
- cover board
- extinguishing chemical
- cavity
- battery case
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- 239000000126 substance Substances 0.000 claims abstract description 173
- 238000010276 construction Methods 0.000 claims abstract description 93
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000013043 chemical agent Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 description 21
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000000178 monomer Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000012954 risk control Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of battery and using battery modules, battery case and the vehicle of the battery, to solve the problems, such as that it is insecure that battery fire extinguishing system in the prior art uses.Battery includes battery cover board and the battery case with battery case inner cavity, battery core unit is equipped in battery case inner cavity, cover board body is equipped with output terminal, battery cover board further includes the extinguishing chemical cavity on cover board body, extinguishing chemical cavity has the extinguishing chemical accommodating chamber for storing extinguishing chemical, the cavity wall of extinguishing chemical cavity includes the cavity wall part for separating extinguishing chemical accommodating chamber Yu battery case inner cavity, is opened when the pressure which is equipped in battery case inner cavity reaches setting value to be connected to the internal blast resistance construction of extinguishing chemical accommodating chamber and battery case inner cavity.
Description
Technical field
The present invention relates to a kind of battery and use battery modules, battery case and the vehicle of the battery.
Background technique
The rapid growth of new-energy automobile market, the occupation rate of market fast lifting of new-energy automobile, to continual mileage
It is required that it is increasingly longer, it is significantly promoted this requires the specific energy of power battery has, is wanted in the specific energy of the year two thousand thirty power battery
Promote 300wh/kg.With the promotion of power battery specific energy density, the security requirement of power battery is also promoted therewith: being pressed
According to country and the relevant criterion of industry, it is desirable that power battery overcharge, over-discharge, do not occur under the abuse conditions such as high temperature thermal runaway and
Thermal runaway extension.But there is no good solutions for current battery technology.This results in the power even if high-energy-density
Battery can by country and industry standard under, but compare comparatively safe LiFePO4 system battery, high-energy-density it is close
The power battery of degree is also without corresponding technical advantage.
According to can consult reference materials, from 2010 to 2015 year during occurred a lot of electric vehicles in the process of running, vehicle touches
It hits, the case of on fire, explosion, even casualties occurs during natural calamity, vehicle therein includes passenger car, commercial vehicle
Deng.But the safety problem of battery system can not be fundamentally solved for existing battery technology level, it also can not be good
Compatible battery high-energy and high security, so the safety wind for needing to go to consider control battery system from the application aspect of battery
Danger, guarantees the life security of passenger.Security risk control when to battery applications becomes new-energy automobile industry at this stage and needs
The technical issues of solution.
At this stage for the monitoring of the fire behavior of battery and battery system and fire-fighting technique, mostly as Authorization Notice No. is
Shown in the utility model patent of CN205964755U, the fire extinguishing system of use includes the monitoring to battery fire behavior state parameter, packet
It includes the temperature to battery, voltage, gas, salt fog, light etc. to detect, battery fire alarm is then established by relevant algorithm
Model theoretically monitors the fire behavior state of simultaneously early warning battery.But under actual conditions, the extinguishing device of battery system is very multiple
Miscellaneous, reliability, durability and service life are difficult to be consistent with battery system.The detector of battery key parameter uses the longevity
Life is well below battery.And there is the case where failing to report and reporting by mistake in battery system operational process.To temperature, electricity
The reliability of the detection mode of pressure, gas, salt fog, light etc. is unable to get solution, and it is accurate really to carry out to battery fire residence
Early warning.In the prior art, the mounting means of battery extinguishing device, fire-fighting mode will affect the sealing protection grade of Battery case,
Under extreme weather (storm water) and extreme operating condition, the safety of battery system is seriously affected.And existing battery fire extinguishing
Device is difficult in maintenance, and maintenance cost is high, and all uses high-pressure bottle substantially, and maintenance is dangerous.
In the prior art, vehicle includes car body and the battery case on car body, and battery modules are equipped in battery case and are led to
Wind radiator structure, battery modules generally include multiple serial or parallel connections or series-parallel battery, and battery includes battery case, battery case
With battery case inner cavity, it is equipped with battery core in battery case inner cavity, cover board body is packaged in the open-mouth of battery case, in cover board body
Backwards to battery core lateral surface on be convexly equipped with two output terminals, the tab of the battery core in battery case inner cavity and two output terminals
It is corresponding conductive connected, the liquid injection hole that electrolyte is injected into battery case inner cavity is additionally provided on cover board body.
Summary of the invention
The purpose of the present invention is to provide a kind of battery, with solve battery fire extinguishing system in the prior art use it is unreliable
The problem of；Battery modules, battery case and the vehicle for using the battery are also provided.
To achieve the above object, the technical solution of battery of the present invention is:
Scheme one: a kind of battery, the battery case including battery cover board and with battery case inner cavity, battery case are equipped in inner cavity
Battery core unit, cover board body are equipped with output terminal, and battery cover board further includes the extinguishing chemical cavity on cover board body, fire extinguishing
Agent cavity has the extinguishing chemical accommodating chamber for storing extinguishing chemical, and the cavity wall of extinguishing chemical cavity includes accommodating for separating extinguishing chemical
The cavity wall part of chamber and battery case inner cavity, the cavity wall part be equipped with when pressure in battery case inner cavity reaches setting value open with
It is connected to the internal blast resistance construction of extinguishing chemical accommodating chamber and battery case inner cavity.
Battery provided by the invention includes battery cover board and the battery case with battery case inner cavity, and battery case is equipped in inner cavity
Battery core unit is equipped with output terminal on cover board body, extinguishing chemical cavity is additionally provided on battery cover board, is had in extinguishing chemical cavity
The accommodating chamber for storing extinguishing chemical is equipped with internal blast resistance construction in cavity wall.In use, when there is fire behavior in battery case inner cavity,
The pressure of battery case inner cavity rises, and internal blast resistance construction is opened, the extinguishing chemical in extinguishing chemical accommodating chamber enters battery case inner cavity
In, it is established comprehensively and the network that effectively insulate in battery case inner cavity, delays the release of the energy content of battery, in battery case inner cavity
Fire behavior is inhibited and is put out a fire.Compared with first being detected or being carried out in the prior art control fire extinguishing when fire behavior occurs in battery,
More efficient, use is more reliable, while can choose the extinguishing chemical of service life even higher than battery life identical as battery life, no
The later period is needed to be safeguarded.
Scheme two: on the basis of scheme one, the cavity wall of extinguishing chemical cavity further includes holding for separating the extinguishing chemical
Receive the cavity wall part of chamber and battery case inner cavity, the pressure that the cavity wall part and/or cover board body are equipped in battery case inner cavity reaches
It is opened when to setting value with to the external blast resistance construction of outside batteries pressure release.
Scheme three: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body to hold
Receive the cover of chamber, cover is set to the outside of cover board body, and cover is equipped with the external blast resistance construction, on cover board body with institute
It states cover and surrounds the part of extinguishing chemical accommodating chamber jointly equipped with the internal blast resistance construction.
Scheme four: on the basis of scheme three, cover includes the end face with cover board body parallel arrangement, and end face is equipped with institute
The external blast resistance construction stated.
Scheme five: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body
The cover of accommodating chamber, cover are set to the inside of cover board body, and cover is equipped with the internal blast resistance construction, on cover board body with
The part that the cover surrounds extinguishing chemical accommodating chamber jointly is equipped with the external blast resistance construction.
Scheme six: in scheme five any one on the basis of, cover include with cover board body parallel arrangement end face, end
Face is equipped with the internal blast resistance construction.
Scheme seven: on the basis of scheme two, the extinguishing chemical cavity runs through cover board along the sealing of cover board body thickness direction
Ontology is located at the cavity wall part on the inside of cover board body in extinguishing chemical cavity and is equipped with the internal blast resistance construction, is located at cover board
The cavity wall part of outer body is equipped with the external blast resistance construction.
Scheme eight: scheme three into scheme six any one on the basis of, cover board body is equipped with notch towards cover
The groove of side, the cover insertion groove is interior and seals assembly with groove.
Scheme nine: scheme two into scheme seven any one on the basis of, the cracking pressure of internal blast resistance construction is less than
The cracking pressure of external blast resistance construction.
Scheme ten: scheme two into scheme seven any one on the basis of, internal, external blast resistance construction is in correspondence
Setting pressure under the explosion-proof valve opened.
Scheme 11: scheme one into scheme seven any one on the basis of, extinguishing chemical cavity is equipped with for going out
The extinguishing chemical injection hole of extinguishing chemical is injected in fiery agent accommodating chamber.
The technical solution of battery modules of the present invention is:
Scheme one: a kind of battery modules, including at least two batteries, battery include battery cover board and have battery case inner cavity
Battery case, battery core unit is equipped in battery case inner cavity, cover board body is equipped with output terminal, and battery cover board further includes being set to lid
Extinguishing chemical cavity on plate ontology, extinguishing chemical cavity have the extinguishing chemical accommodating chamber for storing extinguishing chemical, the chamber of extinguishing chemical cavity
Wall includes the cavity wall part for separating extinguishing chemical accommodating chamber Yu battery case inner cavity, which is equipped in battery case
It is opened when the pressure of chamber reaches setting value to be connected to the internal blast resistance construction of extinguishing chemical accommodating chamber and battery case inner cavity.
Scheme two: on the basis of scheme one, the cavity wall of extinguishing chemical cavity further includes holding for separating the extinguishing chemical
Receive the cavity wall part of chamber and battery case inner cavity, the pressure that the cavity wall part and/or cover board body are equipped in battery case inner cavity reaches
It is opened when to setting value with to the external blast resistance construction of outside batteries pressure release.
Scheme three: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body to hold
Receive the cover of chamber, cover is set to the outside of cover board body, and cover is equipped with the external blast resistance construction, on cover board body with institute
It states cover and surrounds the part of extinguishing chemical accommodating chamber jointly equipped with the internal blast resistance construction.
Scheme four: on the basis of scheme three, cover includes the end face with cover board body parallel arrangement, and end face is equipped with institute
The external blast resistance construction stated.
Scheme five: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body
The cover of accommodating chamber, cover are set to the inside of cover board body, and cover is equipped with the internal blast resistance construction, on cover board body with
The part that the cover surrounds extinguishing chemical accommodating chamber jointly is equipped with the external blast resistance construction.
Scheme six: in scheme five any one on the basis of, cover include with cover board body parallel arrangement end face, end
Face is equipped with the internal blast resistance construction.
Scheme seven: on the basis of scheme two, the extinguishing chemical cavity runs through cover board along the sealing of cover board body thickness direction
Ontology is located at the cavity wall part on the inside of cover board body in extinguishing chemical cavity and is equipped with the internal blast resistance construction, is located at cover board
The cavity wall part of outer body is equipped with the external blast resistance construction.
Scheme eight: scheme three into scheme six any one on the basis of, cover board body is equipped with notch towards cover
The groove of side, the cover insertion groove is interior and seals assembly with groove.
Scheme nine: scheme two into scheme seven any one on the basis of, the cracking pressure of internal blast resistance construction is less than
The cracking pressure of external blast resistance construction.
Scheme ten: scheme two into scheme seven any one on the basis of, internal, external blast resistance construction is in correspondence
Setting pressure under the explosion-proof valve opened.
Scheme 11: scheme one into scheme seven any one on the basis of, extinguishing chemical cavity is equipped with for going out
The extinguishing chemical injection hole of extinguishing chemical is injected in fiery agent accommodating chamber.
The technical solution of battery case of the present invention is:
Scheme one: a kind of battery case, including cabinet and be set to the intracorporal battery modules of case and ventilation and heat structure, battery mould
Group includes at least two batteries, and battery includes battery cover board and the battery case with battery case inner cavity, and battery case is equipped in inner cavity
Battery core unit, cover board body are equipped with output terminal, and battery cover board further includes the extinguishing chemical cavity on cover board body, fire extinguishing
Agent cavity has the extinguishing chemical accommodating chamber for storing extinguishing chemical, and the cavity wall of extinguishing chemical cavity includes accommodating for separating extinguishing chemical
The cavity wall part of chamber and battery case inner cavity, the cavity wall part be equipped with when pressure in battery case inner cavity reaches setting value open with
It is connected to the internal blast resistance construction of extinguishing chemical accommodating chamber and battery case inner cavity.
Scheme two: on the basis of scheme one, the cavity wall of extinguishing chemical cavity further includes holding for separating the extinguishing chemical
Receive the cavity wall part of chamber and battery case inner cavity, the pressure that the cavity wall part and/or cover board body are equipped in battery case inner cavity reaches
It is opened when to setting value with to the external blast resistance construction of outside batteries pressure release.
Scheme three: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body to hold
Receive the cover of chamber, cover is set to the outside of cover board body, and cover is equipped with the external blast resistance construction, on cover board body with institute
It states cover and surrounds the part of extinguishing chemical accommodating chamber jointly equipped with the internal blast resistance construction.
Scheme four: on the basis of scheme three, cover includes the end face with cover board body parallel arrangement, and end face is equipped with institute
The external blast resistance construction stated.
Scheme five: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body
The cover of accommodating chamber, cover are set to the inside of cover board body, and cover is equipped with the internal blast resistance construction, on cover board body with
The part that the cover surrounds extinguishing chemical accommodating chamber jointly is equipped with the external blast resistance construction.
Scheme six: in scheme five any one on the basis of, cover include with cover board body parallel arrangement end face, end
Face is equipped with the internal blast resistance construction.
Scheme seven: on the basis of scheme two, the extinguishing chemical cavity runs through cover board along the sealing of cover board body thickness direction
Ontology is located at the cavity wall part on the inside of cover board body in extinguishing chemical cavity and is equipped with the internal blast resistance construction, is located at cover board
The cavity wall part of outer body is equipped with the external blast resistance construction.
Scheme eight: scheme three into scheme six any one on the basis of, cover board body is equipped with notch towards cover
The groove of side, the cover insertion groove is interior and seals assembly with groove.
Scheme nine: scheme two into scheme seven any one on the basis of, the cracking pressure of internal blast resistance construction is less than
The cracking pressure of external blast resistance construction.
Scheme ten: scheme two into scheme seven any one on the basis of, internal, external blast resistance construction is in correspondence
Setting pressure under the explosion-proof valve opened.
Scheme 11: scheme one into scheme seven any one on the basis of, extinguishing chemical cavity is equipped with for going out
The extinguishing chemical injection hole of extinguishing chemical is injected in fiery agent accommodating chamber.
The technical solution of vehicle of the present invention is:
Scheme one: a kind of vehicle, the battery case including car body and on car body, battery case include cabinet and be set to cabinet
Interior battery modules and ventilation and heat structure, battery modules include at least two batteries, and battery includes battery cover board and has electric
The battery case of pond shell inner cavity is equipped with battery core unit in battery case inner cavity, and cover board body is equipped with output terminal, and battery cover board also wraps
The extinguishing chemical cavity being set on cover board body is included, extinguishing chemical cavity has the extinguishing chemical accommodating chamber for storing extinguishing chemical, extinguishing chemical
The cavity wall of cavity includes the cavity wall part for separating extinguishing chemical accommodating chamber Yu battery case inner cavity, which is equipped with
It is opened when the pressure of battery case inner cavity reaches setting value to be connected to the internal blast resistance construction of extinguishing chemical accommodating chamber and battery case inner cavity.
Scheme two: on the basis of scheme one, the cavity wall of extinguishing chemical cavity further includes holding for separating the extinguishing chemical
Receive the cavity wall part of chamber and battery case inner cavity, the pressure that the cavity wall part and/or cover board body are equipped in battery case inner cavity reaches
It is opened when to setting value with to the external blast resistance construction of outside batteries pressure release.
Scheme three: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body to hold
Receive the cover of chamber, cover is set to the outside of cover board body, and cover is equipped with the external blast resistance construction, on cover board body with institute
It states cover and surrounds the part of extinguishing chemical accommodating chamber jointly equipped with the internal blast resistance construction.
Scheme four: on the basis of scheme three, cover includes the end face with cover board body parallel arrangement, and end face is equipped with institute
The external blast resistance construction stated.
Scheme five: on the basis of scheme two, extinguishing chemical cavity includes surrounding the extinguishing chemical jointly with cover board body
The cover of accommodating chamber, cover are set to the inside of cover board body, and cover is equipped with the internal blast resistance construction, on cover board body with
The part that the cover surrounds extinguishing chemical accommodating chamber jointly is equipped with the external blast resistance construction.
Scheme six: in scheme five any one on the basis of, cover include with cover board body parallel arrangement end face, end
Face is equipped with the internal blast resistance construction.
Scheme seven: on the basis of scheme two, the extinguishing chemical cavity runs through cover board along the sealing of cover board body thickness direction
Ontology is located at the cavity wall part on the inside of cover board body in extinguishing chemical cavity and is equipped with the internal blast resistance construction, is located at cover board
The cavity wall part of outer body is equipped with the external blast resistance construction.
Scheme eight: scheme three into scheme six any one on the basis of, cover board body is equipped with notch towards cover
The groove of side, the cover insertion groove is interior and seals assembly with groove.
Scheme nine: scheme two into scheme seven any one on the basis of, the cracking pressure of internal blast resistance construction is less than
The cracking pressure of external blast resistance construction.
Scheme ten: scheme two into scheme seven any one on the basis of, internal, external blast resistance construction is in correspondence
Setting pressure under the explosion-proof valve opened.
Scheme 11: scheme one into scheme seven any one on the basis of, extinguishing chemical cavity is equipped with for going out
The extinguishing chemical injection hole of extinguishing chemical is injected in fiery agent accommodating chamber.
Detailed description of the invention
Fig. 1 is the perspective view of battery cover board in battery modules embodiment one of the present invention；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the bottom view of Fig. 2；
Fig. 5 is the schematic diagram of battery in battery modules embodiment one of the present invention；
Fig. 6 is the cross-sectional view in Fig. 5 at battery cover board；
Fig. 7 is the schematic diagram of battery modules embodiment one of the present invention；
Fig. 8 is the partial sectional view of Fig. 7；
Fig. 9 is the main view of battery cover board in battery modules embodiment two of the present invention；
Figure 10 is the top view of Fig. 9；
Figure 11 is the bottom view of Fig. 9；
Figure 12 is the schematic diagram of battery in battery modules embodiment two of the present invention；
Figure 13 is the partial sectional view of Figure 12；
Figure 14 is the schematic diagram of battery modules embodiment two of the present invention；
Figure 15 is the partial sectional view of Figure 14；
Figure 16 is the schematic diagram in battery modules embodiment five of the present invention at extinguishing chemical cavity；
Figure 17 is the schematic diagram in battery modules embodiment six of the present invention at extinguishing chemical cavity.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment one of battery modules of the invention, as shown in Figures 1 to 8, battery modules include multiple batteries, electricity
Pond includes battery case 8 and the battery cover board for being sealed on 8 open-mouth of battery case.Battery cover board includes cover board body 1, cover board body 1
Seal buckle has installation position on battery case 8 when in use on cover board body 1, and installation position is equipped with output terminal 2, output
Terminal 2 is used to be connected with the tab for the battery core unit for being placed in battery case inner cavity, and connection type is the sides of being fixedly connected such as laser welding
Formula, output terminal is to draw the electric current of battery core unit.It is additionally provided with liquid injection hole 3 on cover board body 1, is used to battery case 8
Inner cavity inject electrolyte.Open up fluted on the lateral surface of cover board body 1, the notch of groove is towards outside, in groove
It is sealed and installed with cover 5, cover 5 is the structure of the housing shape of aluminum.Cover 5 is fixed by laser welding, fusion or others
Connection type is arranged in 1 groove of cover board body, and certainly, in other examples, cover 5 can also be with cover board body 1 one
Body setting.In internal explosion-proof valve 4 is located at by cover 5, cover 5 defines extinguishing chemical accommodating chamber with cover board body 1 together.Groove
Slot bottom on internal explosion-proof valve 4 is installed, internal explosion-proof valve 4 can be opened or be ruptured in the pressure of setting, and extinguishing chemical is held
Chamber of receiving is connected to battery case inner cavity.Injection hole 7 is offered on cover, it can be by extinguishing chemical by injecting extinguishing chemical in injection hole 7
In accommodating chamber.In addition, battery cover board of the invention further includes will after extinguishing chemical to be injected into extinguishing chemical accommodating chamber by injection hole 7
The plug that injection hole blocks.In the present embodiment, cover 5 and the cover board body part for forming extinguishing chemical accommodating chamber have collectively constituted and have gone out
Fiery agent cavity.In the present embodiment, internal explosion-proof valve 4 is set in the cavity wall of extinguishing chemical cavity.
As shown in Figure 1, cover 5 includes with the top end face of cover board body parallel interval arrangement and positioned at top end face and lid
Circumferential surface between plate ontology, offers external explosion-proof valve 6 on the end face of cover, and external explosion-proof valve 6 can be in the pressure of setting
Lower unlatching or rupture, are connected to extinguishing chemical accommodating chamber with outside batteries.Wherein, the knot of external explosion-proof valve 6 and internal explosion-proof valve 4
Structure is identical, is explosion-proof membrane structure.The cracking pressure of external explosion-proof valve 6 is greater than the cracking pressure of internal explosion-proof valve 4.
Such as the structural schematic diagram of the battery cover board that Fig. 5 and Fig. 6 is the present embodiment and the battery that battery case is assembled into, cover board sheet
It is fixed and is connected by way of welding or others between body 1 and battery case 8, insulation system is set between the two.
Such as the schematic diagram for the battery modules that Fig. 7 and Fig. 8 is the battery composition in the present embodiment.
The production process of above-mentioned battery is as follows:
Step 1: assembled battery cover board installs output terminal 2 and relevant insulating element, in cover board on cover board body 1
Internal explosion-proof valve 4 is installed, later in the external fixed enclosure 5 of internal explosion-proof valve 4, setting installation is external on cover 5 on ontology
Explosion-proof valve 6 and injection hole 7, in the periphery setting insulating element of cover board body.When by battery cover board by the modes such as welding, fusing
After battery case assembling, the extinguishing chemical accommodating chamber that cover 5 and cover board body 1 surround is located at the outside of battery.
Step 2: the production of battery core unit carries out mixing, coating, roll-in, slitting, production pole piece according to technical data,
Battery core unit is made by way of winding or lamination again.
Step 3: the battery that will be made in the positive and negative tab of one or more battery core units of step 2 production and step 1
Cover board output terminal is corresponding to be connected and is electrically connected in a manner of the fusions such as laser welding or ultrasonic bonding.
Step 4: the battery core unit that step 3 makes is put into battery case, fuses battery case using modes such as laser weldings
With battery cover board.Insulating element is set between battery core unit and battery case, between battery case and battery cover board, prevents battery core list
Short circuit between member, battery case and battery cover board, and meet the performance requirement of the insulation pressure resistance of requirements of the national standard.
Step 5: by the battery of step 4 production under conditions of defined ambient humidity (less than 1%), according to technique skill
The regulation of art parameter carries out electrolyte injection.
Step 5: being had been injected into the battery of electrolyte by step 6, is shelved according to technical data requirement, aging
And the processes such as pre- chemical conversion.
Step 7: the battery of step 6 production is subjected to whole sealing.
Step 8: the battery sealed eventually that step 7 is made injects extinguishing chemical according to the requirement of technical data
In extinguishing chemical accommodating chamber.Wherein, extinguishing chemical can use Shiji Lianbao Fire Fighting New Technology Co., Ltd., Beijing TKD- produced
8431 extinguishing chemicals or 3M company production NovecTM1230 extinguishing chemical, the performance requirement of extinguishing chemical need to meet relevant industries and
Requirements of the national standard.In use, not needed in extinguishing chemical and extinguishing chemical accommodating chamber needed for installation detection device, extinguishing chemical release
The others device such as driving device wanted.Wherein, the physics of above-mentioned extinguishing chemical, chemical parameters are as shown in table 1.
1 extinguishing chemical parameter list of table
Step 9: the injection hole for having been injected into extinguishing chemical cavity in the battery of extinguishing chemical of step 8 is sealed.
Step 10: the battery that step 9 is completed is required after being cleaned, toasted and being carried out according to technical data
Continuous process.
It can satisfy national standard and the relevant single battery battery of professional standard according to the battery that above-mentioned steps are completed
The requirement of the thermal runaway expanding test of thermal runaway test requirements document and battery system (Battery case).
Battery cover board of the invention when in use, when there is fire behavior in battery case inner cavity, will lead to battery case chamber pressure
Increase, when pressure reaches the unlatching or fracture pressure of internal explosion-proof valve, internal explosion-proof valve is opened, going out in extinguishing chemical accommodating chamber
Fiery agent enters battery case inner cavity, establishes comprehensively and the network that effectively insulate in battery case inner cavity, to the fire behavior of inside battery into
Row inhibits and fire extinguishing.When the pressure of battery case inner cavity continues growing the unlatching or fracture pressure for reaching external explosion-proof valve, externally
Explosion-proof valve is opened, and discharges the pressure of battery case by external explosion-proof valve, and battery case will not occur to rupture or explode.
Battery cover board of the invention can't destroy the structure of original battery structure and battery modules, will not destroy electricity
The sealing protection performance of Chi Mo group is managed, device parameter with technique, the quality of existing battery, battery modules and battery system
Form good matching.
Extinguishing chemical used in the present invention has excellent electrical insulation capability, is conducive to have comprehensively in inside battery foundation
The insulation network of effect, delays the release of the energy content of battery, and the function of inhibition, fire extinguishing is played to the fire behavior inside battery case, prevents fire
Feelings, which are stretched, leads to thermal runaway.And extinguishing chemical used in the present invention has stable chemical property, and cell electrical is not caused to be returned
Short out road does not react with metal and nonmetallic materials, corrosion-free, and nontoxic, corresponding performance indicator also meets corresponding state
Family's standard requirements.Extinguishing chemical can cover all combustibles of battery catches fire, and extinguishing chemical is that can cover solid fire, liquid
Fire, gas fire, metal be fiery, in electrical fire one or more kinds of fire composite fire extinguishing agent.
In addition, extinguishing chemical has normal pressure storage, the characteristic of long-life storage is suitable with the service life of battery, does not need
Extinguishing chemical itself is replaced within the battery quality guarantee period.
In the present invention, battery core unit is equipped in battery case inner cavity, battery core unit is lamination or winding-structure.Battery core list
Member includes the monomer being composed by series system, parallel way, series-parallel mixed connection mode or other modes, and monomer includes
One or more monomeric units.Monomer includes rectangular, cylindrical monomer or Soft Roll monomer or other special-shaped monomers.
The schematic diagram of battery modules embodiment two of the present invention, the difference master as shown in Fig. 9 to Figure 15, with embodiment one
Be: cover 5 is set on the medial surface of cover board body 1, and the part of cover 5 and cover board body 1 has collectively constituted extinguishing chemical chamber
Body.It is equipped with internal explosion-proof valve 6 in the end face of cover 5, external explosion-proof valve 4 is equipped on cover board body 1, wherein internal explosion-proof valve 6
Unlatching/fracture pressure be less than external explosion-proof valve 4 unlatching/fracture pressure.After battery cover board is assembled on battery case 8,
Cover 5 is fully located inside battery, and in the present embodiment, injection hole 7 is provided on cover board body 1.
The making step of battery in the present embodiment and the making step of embodiment one are substantially the same, only in production battery
When cover board, cover is arranged in the other side.
In other embodiments, the constituent of extinguishing chemical can be selected according to the actual situation.
In the above embodiments, internal explosion-proof valve is internal blast resistance construction, and external explosion-proof valve is external blast resistance construction,
Explosion-proof valve includes rupture pressure disc, can be ruptured after the pressure that rupture pressure disc reaches setting, realizes and opens.In other embodiments, internal,
External blast resistance construction can be relief valve or other can be realized the other structures opened or ruptured when pressure is excessive.
The specific embodiment three of battery modules of the present invention: essentially consisting in the difference of embodiment one and embodiment two,
The internal blast resistance construction of extinguishing chemical cavity and/or the quantity of external blast resistance construction are at least two, meanwhile, the setting of blast resistance construction
Position can be redesigned according to the actual situation, and such as blast resistance construction is arranged on circumferential surface.
The specific embodiment four of battery modules of the present invention: essentially consisting in the difference of above-described embodiment, extinguishing chemical chamber
The shape of body can be other shapes, such as rectangular.
The specific embodiment five of battery modules of the present invention: as shown in figure 16, mainly exist with the difference of above-described embodiment
In using the structure of cover board body itself in the above embodiments, mounting cup body forms extinguishing chemical cavity on cover board body.
In the present embodiment, extinguishing chemical cavity 5 is individual closed cavity, and closed cavity runs through and consolidates along the thickness direction of cover board body 1
It is scheduled on cover board body, makes closed cavity that there is the part being located on the inside of cover board body, it may have on the outside of cover board body
Part, the part on the inside of cover board body are cavity inner wall, and the part on the outside of cover board body is chamber outer wall.?
Internal blast resistance construction 4 is offered on cavity inner wall, and external blast resistance construction 6 is offered on chamber outer wall.
The specific embodiment six of battery modules of the present invention: as shown in figure 17, mainly exist with the difference of above-described embodiment
In, the cover quantity in the present embodiment is two, including outside cover 9 and inside cover 10, through-hole is opened up on cover board body,
Two covers are located inside and outside through-hole upper respectively and extinguishing chemical cavity are collectively formed with cover board body 1.In the present embodiment,
Cover on the inside of cover board body forms cavity inner wall, and the cover on the outside of cover board body forms chamber outer wall.In cavity
Outer wall is equipped with external blast resistance construction 11, and wall is equipped with internal blast resistance construction 12 in the cavity.
The specific embodiment seven of battery modules of the present invention: on the basis of above-described embodiment, it is arranged on cover board body
Additional external blast resistance construction, the cracking pressure of the external blast resistance construction on cover board body are greater than the unlatching pressure of internal blast resistance construction
Power.The cracking pressure of external blast resistance construction can phase with the cracking pressure of blast resistance construction external on extinguishing chemical cavity on cover board body
Together, it can also be different.
The specific embodiment eight of battery modules of the present invention cancels pair on extinguishing chemical cavity on the basis of embodiment seven
Outer blast resistance construction only retains the external blast resistance construction on battery cover board ontology.
The specific embodiment nine of battery modules of the present invention: in the above embodiments, the cracking pressure of external blast resistance construction is equal
Greater than the cracking pressure of internal blast resistance construction, this is based on the case where pressure continues raising after extinguishing chemical injects battery case inner cavity
Under, in the other cases, after injecting battery case inner cavity such as extinguishing chemical, the pressure of battery case inner cavity becomes smaller, at this point, externally explosion-proof
The cracking pressure of structure can be equal to the cracking pressure of internal blast resistance construction.Likewise, externally preventing when extinguishing chemical cavity is equipped with
When quick-fried structure, the cracking pressure of the external blast resistance construction can be less than the cracking pressure of internal blast resistance construction.But battery cover board sheet
The cracking pressure of external blast resistance construction on body cannot be less than the cracking pressure of internal blast resistance construction.The specific reality of battery of the present invention
Example is applied, the structure of battery is consistent with the battery in above-described embodiment, and content repeats no more.
The specific embodiment of battery case of the present invention, battery case include cabinet and are set to the intracorporal battery modules of case and divulge information scattered
Heat structure, wherein the structure of battery modules is consistent with the structure in above-described embodiment, and details are not described herein for content.
The structure of the specific embodiment of battery of the present invention, battery is consistent with the structure in above-described embodiment, and content is no longer
It repeats.
The specific embodiment of vehicle of the present invention, vehicle include car body and the battery case on car body, wherein battery case
Structure is consistent with the structure of above-described embodiment, and details are not described herein for content.
Claims (10)
1. a kind of battery, the battery case including battery cover board and with battery case inner cavity is equipped with battery core unit in battery case inner cavity,
Battery cover board includes cover board body, and cover board body is equipped with output terminal, it is characterised in that: battery cover board further includes being set to cover board
Extinguishing chemical cavity on ontology, extinguishing chemical cavity have the extinguishing chemical accommodating chamber for storing extinguishing chemical, the cavity wall of extinguishing chemical cavity
Including the cavity wall part for separating extinguishing chemical accommodating chamber Yu battery case inner cavity, which is equipped in battery case inner cavity
Pressure open when reaching setting value to be connected to the internal blast resistance construction of extinguishing chemical accommodating chamber and battery case inner cavity.
2. battery according to claim 1, it is characterised in that: the cavity wall of extinguishing chemical cavity further includes described for separating
The cavity wall part of extinguishing chemical accommodating chamber and battery case inner cavity, the cavity wall part and/or cover board body are equipped in battery case inner cavity
Pressure open when reaching setting value with to the external blast resistance construction of outside batteries pressure release.
3. battery according to claim 2, it is characterised in that: extinguishing chemical cavity include surrounded jointly with cover board body it is described
The cover of extinguishing chemical accommodating chamber, cover are set to the outside of cover board body, and cover is equipped with the external blast resistance construction, cover board sheet
The part for surrounding extinguishing chemical accommodating chamber on body jointly with the cover is equipped with the internal blast resistance construction.
4. battery according to claim 3, it is characterised in that: cover includes the end face with cover board body parallel arrangement, end
Face is equipped with the external blast resistance construction.
5. battery according to claim 2, it is characterised in that: extinguishing chemical cavity include surrounded jointly with cover board body it is described
Extinguishing chemical accommodating chamber cover, cover be set to cover board body inside, cover be equipped with the internal blast resistance construction, cover board
The part for surrounding extinguishing chemical accommodating chamber on ontology jointly with the cover is equipped with the external blast resistance construction.
6. battery according to claim 5, it is characterised in that: cover includes the end face with cover board body parallel arrangement, end
Face is equipped with the internal blast resistance construction.
7. battery according to claim 2, it is characterised in that: the extinguishing chemical cavity is sealed along cover board body thickness direction
It is located at the cavity wall part on the inside of cover board body through cover board body, in extinguishing chemical cavity and is equipped with the internal blast resistance construction,
Cavity wall part on the outside of cover board body is equipped with the external blast resistance construction.
8. a kind of battery modules, including at least two batteries, battery includes battery cover board and the battery case with battery case inner cavity,
Battery core unit is equipped in battery case inner cavity, battery cover board includes cover board body, and cover board body is equipped with output terminal, and feature exists
In: battery cover board further includes the extinguishing chemical cavity on cover board body, and extinguishing chemical cavity has the fire extinguishing for storing extinguishing chemical
Agent accommodating chamber, the cavity wall of extinguishing chemical cavity include the cavity wall part for separating extinguishing chemical accommodating chamber Yu battery case inner cavity, should
Cavity wall part, which is equipped with, opens when the pressure of battery case inner cavity reaches setting value to be connected in extinguishing chemical accommodating chamber and battery case
The internal blast resistance construction of chamber.
9. a kind of battery case, including cabinet and it is set to the intracorporal battery modules of case and ventilation and heat structure, battery modules include extremely
Few two batteries, battery include battery cover board and the battery case with battery case inner cavity, are equipped with battery core unit in battery case inner cavity,
Battery cover board includes cover board body, and cover board body is equipped with output terminal, it is characterised in that: battery cover board further includes being set to cover board
Extinguishing chemical cavity on ontology, extinguishing chemical cavity have the extinguishing chemical accommodating chamber for storing extinguishing chemical, the cavity wall of extinguishing chemical cavity
Including the cavity wall part for separating extinguishing chemical accommodating chamber Yu battery case inner cavity, which is equipped in battery case inner cavity
Pressure open when reaching setting value to be connected to the internal blast resistance construction of extinguishing chemical accommodating chamber and battery case inner cavity.
10. a kind of vehicle, the battery case including car body and on car body, battery case includes cabinet and is set to the intracorporal battery of case
Mould group and ventilation and heat structure, battery modules include at least two batteries, battery include battery cover board and have battery case inner cavity
Battery case, battery core unit is equipped in battery case inner cavity, battery cover board includes cover board body, and cover board body is equipped with output end
Son, it is characterised in that: battery cover board further includes the extinguishing chemical cavity on cover board body, and extinguishing chemical cavity, which has to store, to go out
The extinguishing chemical accommodating chamber of fiery agent, the cavity wall of extinguishing chemical cavity include the chamber for separating extinguishing chemical accommodating chamber Yu battery case inner cavity
Wall part, the cavity wall part be equipped with when pressure in battery case inner cavity reaches setting value open be connected to extinguishing chemical accommodating chamber and
The internal blast resistance construction of battery case inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911512.7A CN109585715A (en) | 2017-09-29 | 2017-09-29 | Battery and battery modules, battery case and the vehicle for using the battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911512.7A CN109585715A (en) | 2017-09-29 | 2017-09-29 | Battery and battery modules, battery case and the vehicle for using the battery |
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| CN109585715A true CN109585715A (en) | 2019-04-05 |
Family
ID=65919156
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| CN201710911512.7A Pending CN109585715A (en) | 2017-09-29 | 2017-09-29 | Battery and battery modules, battery case and the vehicle for using the battery |
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| WO2022099662A1 (en) * | 2020-11-13 | 2022-05-19 | 江苏时代新能源科技有限公司 | Box body, battery, electric device, and manufacturing method for battery |
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