CN106299546B - A kind of graphene battery heat management device - Google Patents
A kind of graphene battery heat management device Download PDFInfo
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- CN106299546B CN106299546B CN201610919853.4A CN201610919853A CN106299546B CN 106299546 B CN106299546 B CN 106299546B CN 201610919853 A CN201610919853 A CN 201610919853A CN 106299546 B CN106299546 B CN 106299546B
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- heat dissipation
- contact
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- grid
- battery
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- 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
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of battery pack heat management device, especially a kind of electric car graphene power battery pack heat management system.A kind of graphene battery heat management device, including several battery cells, graphene film and automatic heat radiation keep the temperature grid；Several battery cells form battery pack, it is contacted in the middle part of the graphene film with the battery cell shell, the automatic heat radiation heat preservation grid include heat dissipation grid and heat dissipation contact, the graphene film both ends are connect with the heat dissipation contact, there is gap between the heat dissipation contact, when the heat dissipation contact expanded by heating, the heat dissipation contact is contacted with the heat dissipation grid.The present invention may be implemented battery pack low-temperature insulation and reduce the effect of battery cell temperature difference；It varies with temperature, heat dissipation contact and grid substrate contact or separates, and the contact that radiates selects different materials, heat dissipation contact and the temperature spot of grid substrate contact are also different, increase the adaptability of graphene battery heat management device.
Description
Technical field
The present invention relates to a kind of thermal management device of battery, especially a kind of electric car graphene power battery pack heat management
System, integrated use carry out comprehensive system heat management to electric vehicle battery group from fusing structure, graphene, heat dissipation grid etc., with
Just battery pack is in different temperatures range, round-the-clock use.
Background technique
In recent years, power battery is increasingly becoming the mainstream power supply of electric car.In electric car, usually by multiple electricity
Serial or parallel connection constitutes a cell apparatus to pond monomer together in different forms, to provide required voltage and capacity.
Since battery is in charge and discharge process, internal chemical reaction is complicated, and generates with heat, especially for multiple battery lists
The device of body composition, the aggregation of temperature faster, make inside battery generate a large amount of heat build-up rapidly, necessarily cause battery temperature
Increase and Temperature Distribution it is unbalanced, so as to cause battery performance decline, it is possible that leakage, phenomena such as deflating, smoldering,
Battery can occur vigorous combustion or even explode when serious；In contrast, in northerly winter, environment temperature is low, electric at this time
Pond does not need to radiate, and battery pack needs certain Insulation just and can be carried out normal work.
Currently, power battery generally all uses air radiating mode the simplest in the market, it is few to use others side
Formula.Tesla's battery thermal management system uses water-cooling pattern, but does not have low-temperature insulation function.
Chinese patent CN 102709618A discloses a kind of cooling temperature equalization system in the microchannel for heat dissipation of lithium battery, micro-
Channel cooling efficiency is low, and does not have low-temperature insulation function.
Summary of the invention
The purpose of the present invention is overcoming the prior art to have the defects that battery pack does not have low-temperature insulation function, a kind of stone is provided
Black alkene thermal management device of battery.
The technical solution adopted by the present invention to solve the technical problems is: a kind of graphene battery heat management device, including
Several battery cells, graphene film and automatic heat radiation keep the temperature grid；Several battery cells form battery pack, the graphene
Central film portion is contacted with the battery cell shell, and the automatic heat radiation heat preservation grid include heat dissipation grid and heat dissipation contact, the stone
Black alkene film both ends are connect with the heat dissipation contact, between the heat dissipation contact have gap, when the heat dissipation contact be heated it is swollen
When swollen, the heat dissipation contact is contacted with the heat dissipation grid.
Preferably, the heat dissipation grid are arranged on grid base body, described for the installation convenient for heat dissipation grid and the contact that radiates
The contact that radiates is arranged on contact body, and the grid base body is fixedly connected with the contact body, and is provided between the two
Accommodate the cavity of the heat dissipation contact.
Further, for convenient for being bonded graphene film and contact body, the contact body is close to the electricity
The side of pond group is provided with adhesive layer, and the graphene film both ends are fitted on the contact body by adhesive layer.
Preferably, to improve the thermal conductivity between graphene film and street contact body, the adhesive layer material is
Thermally conductive cohesive material.
Preferably, the thermally conductive cohesive material is heat conductive silica gel.
Further, be improve the contact for effectively realizing heat dissipation contact between the grid that radiate with separate, the heat dissipation is touched
Head material is thermally conductive expanding material.
Preferably, the heat dissipation contact material is PA6 or PPS.PA6 and PPS heating conduction with higher and compared with
High coefficient of thermal expansion.
Further, the heat dissipation contact is in dotted discrete distribution or strip distribution.
The utility model has the advantages that the invention adopts the above technical scheme compared with prior art, one, may be implemented battery pack low temperature guarantor
The mild effect for reducing battery cell temperature difference；Two, it varies with temperature, heat dissipation contact and grid substrate contact or separates, and is scattered
Thermal contact head selects different materials, and heat dissipation contact and the temperature spot of grid substrate contact are also different, can thus be applicable in inhomogeneity
The battery cell of type, which increases the adaptability of graphene battery heat management device.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is graphene battery heat management device structural schematic diagram of the present invention；
Fig. 2 is automatic heat radiation heat preservation grid structure schematic diagram；
Fig. 3 is heat dissipation contact expansion process schematic diagram；
Fig. 4 is for dotted discrete distributed heat removal structure of contact terminal schematic diagram；
Fig. 5 is the heat dissipation structure of contact terminal schematic diagram of strip distribution.
Wherein: 1. battery cells, 2. graphene films, 3. automatic heat radiations heat preservation grid, 31. heat dissipation grid, 32. grid base bodies, 33.
Radiate contact, 34. contact bodies, 35. adhesive layers.
Specific embodiment
Embodiment
As shown in Figure 1, a kind of graphene battery heat management device, including several battery cells 1, graphene film 2 and from
Dynamic heat dissipation heat preservation grid 3；Several battery cells 1 form battery pack, 2 middle part of graphene film and the battery cell 1
Shell contact, as shown in Fig. 2, automatic heat radiation heat preservation grid 3 include heat dissipation grid 31 and heat dissipation contact 33, the heat dissipation grid 31
It is arranged on grid base body 32, the heat dissipation contact 33 is arranged on contact body 34, the grid base body 32 and the contact base
Body 34 is fixedly connected, and is provided with the cavity for accommodating the heat dissipation contact 33,2 both ends of graphene film and institute between the two
It states contact body 34 to be bonded by the thermally conductive cohesive material of adhesive layer 35, thermally conductive cohesive material is in the present embodiment with heat conductive silica gel
Example；There is gap between the heat dissipation contact 33 and grid base body 32,33 material of heat dissipation contact is thermally conductive expanding material,
33 material of heat dissipation contact is PA6 or PPS (selecting according to the actual situation), as shown in Figures 4 and 5, the heat dissipation contact
33 are distributed on contact body 34 in dotted discrete distribution or strip, as shown in figure 3, working as 33 expanded by heating of heat dissipation contact
When, the heat dissipation contact 33 is contacted with the heat dissipation grid 31.
Working principle is as follows: when generating heat to battery pack work, the heat that battery cell 1 generates passes through battery cell 1
Metal shell pass to graphene film 2, heat is transmitted to outside battery pack by graphene film 2 from internal battery pack, lead to
It crosses thermally conductive adhesive layer 35 and passes to contact body 34, then heating heat dissipation contact 33, heat dissipation contact 33 is increased with temperature to be expanded,
When battery temperature is increased to certain value, the present embodiment is for > 40 DEG C, as shown in figure 3, heat dissipation contact 33 connects with grid base body 32
Touching fitting, and grid base body 32 is transferred heat to, grid base body 32 transfers heat to heat dissipation grid 31 again, and final heat dissipation grid 31 will be warm
Amount passes to air, thereby realizes a heat dissipation circulation.When battery pack temperature is reduced to certain temperature, the present embodiment with
For 40 DEG C of <, heat dissipation contact 33 is reduced with temperature to be shunk, and is finally separated with grid base body 32, the heat that such battery pack generates is just
It can only be transmitted in the space that surrounds of internal battery pack and graphene film 2, play heat preservation and reduce the work of 1 temperature difference of battery cell
With.
It should be appreciated that described above, the specific embodiments are only for explaining the present invention, is not intended to limit the present invention.By
The obvious changes or variations that spirit of the invention is extended out are still in the protection scope of this invention.
Claims (7)
1. a kind of graphene battery heat management device, it is characterised in that: including several battery cells (1), graphene film (2) and
Automatic heat radiation keeps the temperature grid (3)；Several battery cells (1) form battery pack, graphene film (2) middle part and the electricity
The contact of pond monomer (1) shell, automatic heat radiation heat preservation grid (3) include heat dissipation grid (31) and heat dissipation contact (33), the graphite
Alkene film (2) both ends are connect with the heat dissipation contact (33), have gap between the heat dissipation contact (33) and heat dissipation grid (31),
When heat dissipation contact (33) expanded by heating, the heat dissipation contact (33) contacts with the heat dissipation grid (31)；
The heat dissipation grid (31) are arranged on grid base body (32), and the heat dissipation contact (33) is arranged on contact body (34),
The grid base body (32) is fixedly connected with the contact body (34), and is provided with the accommodating heat dissipation contact between the two
(33) cavity.
2. graphene battery heat management device according to claim 1, it is characterised in that: the contact body (34) leans on
The side of the nearly battery pack is provided with adhesive layer (35), and graphene film (2) both ends are fitted in by adhesive layer (35)
On the contact body (34).
3. graphene battery heat management device according to claim 2, it is characterised in that: described adhesive layer (35) material
For thermally conductive cohesive material.
4. graphene battery heat management device according to claim 3, it is characterised in that: the thermally conductive cohesive material is
Heat conductive silica gel.
5. graphene battery heat management device according to claim 1, it is characterised in that: described heat dissipation contact (33) material
Matter is thermally conductive expanding material.
6. graphene battery heat management device according to claim 5, it is characterised in that: described heat dissipation contact (33) material
Matter is PA6 or PPS.
7. graphene battery heat management device according to claim 1, it is characterised in that: the heat dissipation contact (33) is in
Dotted discrete distribution or strip distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919853.4A CN106299546B (en) | 2016-10-21 | 2016-10-21 | A kind of graphene battery heat management device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919853.4A CN106299546B (en) | 2016-10-21 | 2016-10-21 | A kind of graphene battery heat management device |
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| Publication Number | Publication Date |
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| CN106299546A CN106299546A (en) | 2017-01-04 |
| CN106299546B true CN106299546B (en) | 2019-03-15 |
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| CN201610919853.4A Active CN106299546B (en) | 2016-10-21 | 2016-10-21 | A kind of graphene battery heat management device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880629A (en) * | 2019-11-19 | 2020-03-13 | 安徽省聚科石墨烯科技股份公司 | Radiating group battery device of phase change material is assisted to graphite alkene |
| US11958382B2 (en) * | 2020-04-01 | 2024-04-16 | Honeycomb Battery Company | Graphene-enabled battery fast-charging and cooling system and method of operating same |
| CN115474395A (en) * | 2021-06-11 | 2022-12-13 | 中兴通讯股份有限公司 | Structural member and communication device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050074666A1 (en) * | 2002-08-29 | 2005-04-07 | Hirokazu Kimiya | Heat control device for battery |
| CN101529647A (en) * | 2006-10-23 | 2009-09-09 | 丰田自动车株式会社 | Cooler and vehicle |
| US9909823B2 (en) * | 2013-06-10 | 2018-03-06 | Hamilton Sundstrand Corporation | Thermal conductivity control devices |
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