CN104037448A - Battery - Google Patents
Battery Download PDFInfo
- Publication number
- CN104037448A CN104037448A CN201410265851.9A CN201410265851A CN104037448A CN 104037448 A CN104037448 A CN 104037448A CN 201410265851 A CN201410265851 A CN 201410265851A CN 104037448 A CN104037448 A CN 104037448A
- Authority
- CN
- China
- Prior art keywords
- push rod
- pole piece
- battery
- substrate
- battery according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims description 43
- 238000001125 extrusion Methods 0.000 claims description 35
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 abstract description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229920006395 saturated elastomer Polymers 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000243 solution Substances 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Hybrid Cells (AREA)
Abstract
The invention discloses a battery. The battery comprises a shell and a pole core located in the shell, wherein a pole core extruding device for extruding the pole core is arranged at the outer part of the pole core. The battery has the beneficial effects that the pole core is relaxed in an initial production stage of the battery, and the adequate infiltration of electrolyte is guaranteed; in an initial charge process, gas generated by a lithium ion battery can be extruded to a position, besides the pole core, in the battery in a repeated extruding manner, so that the saturated electrolyte absorption of a diaphragm is guaranteed, and the adequate contact between the diaphragm and an anode piece as well as a cathode piece is guaranteed; the volume of the battery is guaranteed, and the internal resistance of the battery is reduced; bulging of the battery is avoided; when the battery is used, the tight clamping of the pole core and the tight fit between the diaphragm and an anode as well as a cathode are guaranteed, so that the utilization reliability of the battery is improved, and the service life of the battery is prolonged.
Description
Technical field
The present invention relates to technical field of lithium ion, relate in particular to a kind of battery.
Background technology
At the battery production initial stage, if pole piece packs shell into, too tight, will be unfavorable for that electrolyte fully infiltrates pole piece.While producing the initial charge in later stage, battery produces gas cannot be disperseed, and causes battery swell, affects follow-up use, and battery capacity is by the low side, and the internal resistance of cell is higher, even can cause battery short circuit, causes security incident.If gap when pole piece packs shell between pole piece and shell is larger, electrolyte can fully infiltrate really, but the gap of positive/negative plate increases, and will cause ionic transfer lengthening distance, and internal resistance increases, and large current work ability reduces.More fatal is, lithium ion battery initial charge can produce a large amount of gas, loose pole piece will cause a large amount of bubbles to remain in barrier film hole, is originally used for carrying out the hole that lithium ion shuttles back and forth and is occupied by bubble, and the internal resistance of cell will enlarge markedly, capacity declines to a great extent.
In the life cycle of battery, can experience various vibrations.As battery for electric automobile, batteries for electric tools, battery for mobile phone, battery etc. for aircraft.The tension force that when vibration can disperse to produce, pole piece is reeled, causes it to become loose, and positive/negative plate gap increases.More seriously, Lithium-Ion Battery Core, at coiling end, is all used gummed paper sealing tail end at present, and gummed paper is bonded on barrier film.But barrier film is loose structure, all can there is deformation in any direction, more obvious after infiltration electrolyte, extraneous vibration aggravates this deformation.Thereby cause afterbody gummed paper to lose efficacy.Pole piece is now just as the spring compressing removes suddenly pressure, and the pole piece of coiling can relax gradually, and battery performance is decayed.For above-mentioned situation, seal fixing metal shell by helpless.
Summary of the invention
The object of the invention is to: a kind of battery is provided, realizes the accurate extruding of pole piece, improve reliability and stability that battery is used.
For reaching this object, the present invention by the following technical solutions:
A battery, the pole piece that comprises housing and be positioned at described enclosure interior, described pole piece outer setting is useful on the pole piece pressurizing unit that described pole piece is pushed.
As a kind of preferred technical scheme, described pole piece pressurizing unit comprises extrusion element and pressure control valve, described extrusion element carries out directly contacting with described pole piece described pole piece is pushed, and described pressure control valve contacts for controlling the motion of described extrusion element with described extrusion element.
As a kind of preferred technical scheme, described extrusion element is made by elastomeric material.
Employing elastomeric material is made, and the shape of described extrusion element can be carried out adaptations voluntarily according to the shape of pole piece, can make the pressure distribution that acts on pole piece more even.
Further, described extrusion element can be flexible air-bag or cushion, during work described in extrusion element cover at least partly described pole piece outer surface.
Further, described extrusion element adopts soft TR thin rubber material or polyurethane material material to make.
As a kind of preferred technical scheme, described pressure control valve comprises the substrate matching with described pole piece profile, and described extrusion element is corresponding one by one with described substrate, and described extrusion element is fixedly mounted on described substrate.
Preferably, at least one in substrate employing polypropylene, polyethylene or PET is made.
Concrete, when described pole piece is cuboid shape structure, described substrate can be one, and is arranged on a place, side of described pole piece; Another side and the inwall of described housing contact and push in the face of described pole piece by relative two.
Preferably, described substrate can be two, is separately positioned on the two sides that described pole piece is relative, by two extrusion elements, described pole piece is pushed simultaneously.
When described pole piece is while being cylindrical, described substrate is arc substrate, the radian of described arc substrate is corresponding with the cylindrical outer surface of described pole piece, described arc substrate can be for covering the arc of described half outer surface of pole piece, described arc substrate is two symmetrical both sides that are arranged on described pole piece, and described in two, arc substrate combines and can cover whole pole piece outer surface it is pushed.
As a kind of preferred technical scheme, described substrate is connected with the push rod for driving described substrate to move on the side away from described pole piece, and described push rod reaches described outside through described housing.
Preferably, described push rod and described substrate integrated injection molding.
Preferably, the quantity of described push rod is on every described substrate, to be provided with at least one described push rod, and the quantity that push rod is set on every substrate depends on size and the requirement to balance in extrusion process of substrate.
As a kind of preferred technical scheme, the position of described push rod and described housing joint is provided with potted component.
As a kind of preferred technical scheme, described potted component comprises the potted component pedestal being connected with described housing, on described potted component pedestal, be provided with the through hole that can make described push rod pass, in described through hole, be provided with sealing ring, described push rod is located in described sealing ring and can endwisely slips along described through hole.
Preferably, described potted component pedestal adopts insulating material to make.
As a kind of preferred technical scheme, on described push rod, be provided with the push rod retaining element for fixing described push rod.
As a kind of preferred technical scheme, described push rod retaining element is the elasticity knob being set on described push rod, described elasticity knob be outer surface for thering is externally threaded pyramidal structure, on described potted component pedestal, be provided with the female thread structure matching with described elasticity knob shaped.
Elasticity knob is set to the threaded pyramidal structure of tool, and in the process screwing at knob, potted component pedestal constantly pushes elasticity knob, makes elasticity knob inwall clamp gradually described push rod, and the position of described push rod is fixed.
As a kind of preferred technical scheme, on described push rod, be provided with the scale mark that stretches into described enclosure interior length for demarcating described push rod.
Preferably, at elasticity knob, screw under the state that described push rod is fixing, scale mark position on the push rod that the end of elasticity knob is demarcated can display base plate near the distance of the surface distance hull outside of pole piece, when pole piece is monosymmetric when two groups of pole piece pressurizing units are set, the thickness that the difference of the thickness in the direction of extrusion of described housing and both sides push rod scale sum deducts two extrusion elements is again the thickness of pole piece after extruding.
The present invention has following beneficial effect:
1, at the battery production initial stage, loosen pole piece, guarantee the abundant infiltration of electrolyte;
2, when initial charge, the gas that lithium ion battery produces, can be by repeatedly pushing to squeeze the position beyond inside battery pole piece, guarantees that barrier film can saturated imbibition, and fully the contacting of positive/negative plate and barrier film;
3, guarantee the capacity of battery, the internal resistance of reduction battery;
4, avoid battery swell;
5, battery, between the operating period, guarantees the clamping of pole piece and fitting tightly of both positive and negative polarity and barrier film, increases the reliability that battery is used, and increases the service life.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is battery schematic diagram described in embodiment mono-.
Fig. 2 is inside battery structure vertical view described in embodiment mono-.
Fig. 3 is potted component structural representation described in embodiment mono-.
Fig. 4 is Fig. 3 vertical view.
Fig. 5 is battery schematic diagram described in embodiment bis-.
Fig. 6 is inside battery structure vertical view described in embodiment bis-.
In Fig. 1 to 4:
100, housing; 101, pole piece; 102, electrolyte; 103, extrusion element; 104, substrate; 105, push rod; 106, handle; 107, potted component pedestal; 108, sealing ring; 109, elasticity knob.
In Fig. 5,6:
200, housing; 201, pole piece; 202, extrusion element; 203, substrate.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, further illustrate technical scheme of the present invention.
Embodiment mono-:
As shown in Fig. 1～4, in the present embodiment, a kind of battery of the present invention, the pole piece 101 that comprises housing 100 and be positioned at housing 100 inside, housing 100 is rectangular drum like structure, and pole piece 101 cross sections are rectangular configuration, the sidewall setting of the side corresponding housing 100 of pole piece 101, in housing 100 inside, be filled with electrolyte 102, in pole piece 101 outer setting, be useful on the pole piece pressurizing unit that pole piece 101 is pushed.
Concrete, pole piece pressurizing unit comprises the extrusion element 103 of being made by elastomeric material and contacts for controlling the pressure control valve of the motion of extrusion element 103 with extrusion element 103.Extrusion element 103 is a side and pole piece 101 side views and the equal corresponding flexible air-bag of size, and described flexible air-bag adopts polyurethane material to make.In the present embodiment, extrusion element 103 is two with pressure control valve, be separately positioned on the place, a pair of side that pole piece 101 is parallel to each other, pressure control valve comprises the substrate 104 contacting with extrusion element 103, the rectangular structure of substrate 104, its overall dimension matches with corresponding pole piece 101 sides, extrusion element 103 is fixedly mounted on substrate 104, can together move with substrate 104.
On a side at substrate 104 away from pole piece 101, be connected with the push rod 105 for driving substrate 104 to move, push rod 105 reaches housing 100 outsides through housing 100.In the present embodiment, on every substrate 104, be provided with two push rods 105, and two push rods 105 are arranged in parallel, two push rod 105 one end are connected the other end stretches out housing 100 outsides and connects by handle 106 with substrate 104, and the position being connected with substrate 104 at push rod 105 is provided with the gusset for firm push rod 105.Push rod 105, substrate 104 and gusset adopt polythene material to make, and pass through integrated injection molding.
Because push rod 105 reaches housing 100 outsides through sidewall, in order to prevent that the electrolyte of housing 100 inside from flowing out, the position contacting with housing 100 at push rod 105 is provided with sealing ring 108.The concrete position of passing at housing 100 upper push-rods 105 has a through hole, in through hole, be provided with for the potted component pedestal 107 of sealing ring 108 is installed, on potted component pedestal 107, be provided with the through hole that can make push rod 105 pass through, on potted component pedestal 107 and be positioned at housing 100 and have in the plane for holding the groove of sealing ring 108, sealing ring 108 is arranged in groove, and push rod 105 is located in sealing ring 108 and can endwisely slips along through hole.
The pyramidal structure that an end opening that is positioned at housing 100 outsides at potted component pedestal 107 increases outside serving as reasons gradually, corresponding with pyramidal structure opening be provided with the elasticity knob 109 that outer surface is taper, in tapered opening inside, be provided with internal thread, the outer surface of elasticity knob 109 be provided with the external screw thread of answering in contrast make described elasticity knob 109 can precession, screw out tapered opening.On elasticity knob 109, be provided with through hole, at the internal diameter of relaxation state lower through-hole, be slightly larger than the diameter of push rod 105.Its internal diameter that deforms of being constantly squeezed in elasticity knob 109 screws in the process of tapered openings reduces gradually, after it contact with push rod 105, can push push rod 105, and realization is fixed push rod 105.
On push rod 105, be provided with and can reflect that substrate 104 is near the scale mark of the distance in surface distance housing 100 outsides of pole piece 101.Elasticity knob 109 has an end face perpendicular to push rod 105 axis, and in the situation that elasticity knob 109 screws, the corresponding scale mark being positioned on push rod 105 of the end face of elasticity knob 109 is that substrate 104 is near the distance in surface distance housing 100 outsides of pole piece 101.
At elasticity knob 109, screw under the state that push rod 105 is fixing, scale mark position on the push rod 105 that the end face of elasticity knob 109 is demarcated can display base plate 104 near the distance in surface distance housing 100 outsides of pole piece 101, when pole piece 101 is monosymmetric when two groups of pole piece pressurizing units are set, the thickness that the difference of the thickness in the direction of extrusion of housing 100 and both sides push rod 105 scale sums deducts two extrusion elements 103 is again the thickness of pole piece 101 after extruding.
After battery pack installs into, in ageing process, push rod 105 can be pulled outwardly, allow electrolyte fully infiltrate pole piece 101.At battery initial charge, cross Cheng Qian, push rod 105 is inwardly pushed away, and screw elasticity knob 109.This action can repeatedly, to discharge unnecessary electrolyte 102, fully be pushed pole piece 101, and positive and negative electrode is fully contacted, and reduces the internal resistance of cell.Therefore battery initial charge can produce gas, needs again pole piece 101 to be pushed after charging, and this action can be repeatedly, until approach design value.
Embodiment bis-:
As Fig. 5, shown in 6, the present embodiment and embodiment mono-content are basic identical, its main distinction is the housing 200 of battery, the shape of substrate 203 and extrusion element 202 is different, the present embodiment middle shell 200 is rounded cylindrical, corresponding pole piece 201 is cylindrical-shaped structure with it, therefore in the present embodiment in order better pole piece 201 to be clamped to extrusion element 202 and substrate 203 all adopts arcuate structure, the radian of the substrate 203 of arc is corresponding with the cylindrical outer surface of pole piece 201, substrate 203 can approach for covering pole piece 201 arc of half outer surface, substrate 203 is two, the symmetrical both sides that are arranged on pole piece 201, two substrates 203 combines and can substantially cover whole pole piece outer surface it is pushed.
What need statement is; above-mentioned embodiment is only preferred embodiment of the present invention and institute's application technology principle; in technical scope disclosed in this invention, the variation that any those skilled in the art of being familiar with easily expect or replacement, all should be encompassed in protection scope of the present invention.
Claims (10)
1. a battery, is characterized in that, the pole piece that comprises housing and be positioned at described enclosure interior, and described pole piece outer setting is useful on the pole piece pressurizing unit that described pole piece is pushed.
2. battery according to claim 1, it is characterized in that, described pole piece pressurizing unit comprises extrusion element and pressure control valve, described extrusion element carries out directly contacting with described pole piece described pole piece is pushed, and described pressure control valve contacts for controlling the motion of described extrusion element with described extrusion element.
3. battery according to claim 2, is characterized in that, described extrusion element is made by elastomeric material.
4. battery according to claim 3, is characterized in that, described pressure control valve comprises the substrate matching with described pole piece profile, and described extrusion element is corresponding one by one with described substrate, and described extrusion element is fixedly mounted on described substrate.
5. battery according to claim 4, is characterized in that, described substrate is connected with the push rod for driving described substrate to move on the side away from described pole piece, and described push rod reaches described outside through described housing.
6. battery according to claim 5, is characterized in that, the position of described push rod and described housing joint is provided with potted component.
7. battery according to claim 6, it is characterized in that, described potted component comprises the potted component pedestal being connected with described housing, on described potted component pedestal, be provided with the through hole that can make described push rod pass, in described through hole, be provided with sealing ring, described push rod is located in described sealing ring and can endwisely slips along described through hole.
8. battery according to claim 7, is characterized in that, is provided with the push rod retaining element for fixing described push rod on described push rod.
9. battery according to claim 8, it is characterized in that, described push rod retaining element is the elasticity knob being set on described push rod, described elasticity knob be outer surface for thering is externally threaded pyramidal structure, on described potted component pedestal, be provided with the female thread structure matching with described elasticity knob shaped.
10. battery according to claim 9, is characterized in that, is provided with the scale mark that stretches into described enclosure interior length for demarcating described push rod on described push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265851.9A CN104037448B (en) | 2014-06-13 | 2014-06-13 | A kind of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265851.9A CN104037448B (en) | 2014-06-13 | 2014-06-13 | A kind of battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104037448A true CN104037448A (en) | 2014-09-10 |
| CN104037448B CN104037448B (en) | 2016-06-01 |
Family
ID=51468133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410265851.9A Active CN104037448B (en) | 2014-06-13 | 2014-06-13 | A kind of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104037448B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898822A (en) * | 2017-05-05 | 2017-06-27 | 惠州亿纬锂能股份有限公司 | A kind of lithium battery production technology and lithium battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201311953Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Lithium ion battery |
| CN102290557A (en) * | 2011-07-19 | 2011-12-21 | 深圳邦凯新能源股份有限公司 | Liquid injection process of lithium ion battery cell |
| CN103647105A (en) * | 2013-12-12 | 2014-03-19 | 奇瑞汽车股份有限公司 | Power battery |
| CN203932224U (en) * | 2014-06-13 | 2014-11-05 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of battery |
-
2014
- 2014-06-13 CN CN201410265851.9A patent/CN104037448B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201311953Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Lithium ion battery |
| CN102290557A (en) * | 2011-07-19 | 2011-12-21 | 深圳邦凯新能源股份有限公司 | Liquid injection process of lithium ion battery cell |
| CN103647105A (en) * | 2013-12-12 | 2014-03-19 | 奇瑞汽车股份有限公司 | Power battery |
| CN203932224U (en) * | 2014-06-13 | 2014-11-05 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898822A (en) * | 2017-05-05 | 2017-06-27 | 惠州亿纬锂能股份有限公司 | A kind of lithium battery production technology and lithium battery |
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| Publication number | Publication date |
|---|---|
| CN104037448B (en) | 2016-06-01 |
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Effective date of registration: 20200424 Address after: 448000 No. 68, Jingnan Avenue, Duodao District, high tech Zone, Jingmen City, Hubei Province Patentee after: Hubei EVE Power Co.,Ltd. Address before: Seven road 516006 in Guangdong province Huizhou City Zhongkai high tech Zone Huifeng No. 36 Patentee before: GUANGZHOU EVE CENS NEW ENERGY SYSTEM Co.,Ltd. |