CN103904257A - Power battery cover plate capable of resisting electrocorrosion - Google Patents
Power battery cover plate capable of resisting electrocorrosion Download PDFInfo
- Publication number
- CN103904257A CN103904257A CN201410139133.7A CN201410139133A CN103904257A CN 103904257 A CN103904257 A CN 103904257A CN 201410139133 A CN201410139133 A CN 201410139133A CN 103904257 A CN103904257 A CN 103904257A
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- CN
- China
- Prior art keywords
- substrate
- hole
- cover plate
- positive terminal
- power battery
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Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 63
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
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
- H01M50/148—Lids or covers characterised by their shape
-
- 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
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
- H01M50/183—Sealing members
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a power battery cover plate capable of resisting electrocorrosion. The power battery cover plate comprises a base plate, wherein the base plate is provided with a positive pole column hole and a negative pole column hole; a positive pole column and a negative pole column respectively pass through the positive pole column hole and the negative pole column hole; the positive pole column hole and the negative pole column hole are formed in the upper surface of the base plate and are set into steps; the base plate is provided with a plurality of base plate blind holes in the lower surface near the positive pole column hole and the negative pole column hole; the parts, which are connected with the lower surface of the base plate in a propping manner, of the positive pole column and the negative pole column are respectively provided with pole column blind holes matched with the base plate blind holes; ceramic columns are respectively embedded between the base plate blind holes and the corresponding pole column blind holes; the positive pole column is arranged on the upper surface of the base plate, and is closely sleeved with a semiconductor plastic pad; the lower part of the semiconductor plastic pad is embedded into the step of the positive pole column hole. The power battery cover plate has the advantages that the rotation stopping torques of the pole columns can be increased, and the electrocorrosion resistance of the cover plate can be improved.
Description
Technical field
The present invention relates to accessory battery, especially relate to a kind of cover plate of power battery that can increase the anti-galvano-cautery of cover plate in increasing pole spline moment of torsion.
Background technology
Electrokinetic cell is the important component part of new forms of energy battery, electrokinetic cell is being kept the development of new-energy automobile in check, thereby, the safety of battery and Practical Performance are its particularly important performance parameters, and the sealing of cover plate of power battery and the galvano-cautery that is connected effect and battery case and cover plate emphasis wherein just, good sealing and the corrosion resistance that is connected effect and battery case cap can increase the security performance of battery and battery and be assembled into the practicality such as convenient and swift of module, and the battery cover board of prior art is also being difficult to reach ideal effect aspect cell safety and monocell connection.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of cover plate of power battery that can increase the anti-galvano-cautery of cover plate in increasing pole spline moment of torsion.
The present invention realizes by following technical measures, a kind of cover plate of power battery of anti-galvano-cautery, comprise substrate, on described substrate, be provided with positive terminal hole and negative terminal hole, in described positive terminal hole and negative terminal hole, be equipped with respectively positive terminal and negative terminal, the upper surface that described positive terminal hole and negative terminal hole are positioned at substrate is set to step, near the lower surface that described substrate is positioned at positive terminal hole and negative terminal hole is provided with multiple substrate blind holes, described positive terminal and negative terminal butt base lower surface place are all provided with the pole blind hole matching with substrate blind hole, between described substrate blind hole and corresponding pole blind hole, embed and have ceramics pole, the upper surface that described positive terminal is positioned at substrate is closely arranged with semiconductor plastic pad, the below of described semiconductor plastic pad embeds in the step in positive terminal hole.
As a kind of optimal way, the top of described positive terminal and negative terminal is all provided with a pole draw-in groove, the upper surface that described negative terminal is positioned at substrate is closely arranged with negative pole plastic pad, between described positive terminal and negative terminal and base lower surface, be all arranged with seal washer, on described pole draw-in groove, be arranged with axle jump ring, described axle is fastened on semiconductor plastic pad upper surface with jump ring and by positive terminal, seal washer and semiconductor plastic pad are closely stuck on substrate, or described axle is fastened on negative pole plastic pad upper surface with jump ring and by negative terminal, seal washer and negative pole plastic pad are closely stuck on substrate.
As a kind of optimal way, the upper surface that described positive terminal is positioned at substrate is arranged with an anodal protection plastic pad.
As a kind of optimal way, the upper surface that described negative terminal is positioned at substrate is arranged with a negative pole protection plastic pad.
As a kind of optimal way, on described substrate, be provided with explosionproof hole, in described explosionproof hole, be provided with burst disk, explosionproof hole upper surface is provided with burst disk paster.
As a kind of optimal way, on described substrate, be also provided with liquid injection hole.
As a kind of optimal way, in described positive terminal and negative terminal, be all provided with connection internal thread.
As a kind of optimal way, described base lower surface is also provided with the insulation spacer of injection moulding.
Substrate of the present invention is in the time of punch process, change by mould, lower surface around positive terminal hole and negative terminal hole stamps out respectively some substrate blind holes, thereby has greatly increased the sealing of pole to the relative rotational resistance of substrate and after riveting by packing cylindrical ceramic into.So just reach and added the moment of torsion of large cover and prevent the object of overvoltage on bubble-tight impact; The present invention arranges semiconductor plastic pad and can effectively improve the electromotive force of battery case and cover plate between positive terminal and substrate, prevents that battery case and cover plate from being the galvano-cautery of burst disk by it.Prevent battery cover board and shell by the electromotive force that improves cover plate, particularly on cover plate about the galvano-cautery of the burst disk of security performance, avoided electrokinetic cell in normal use procedure because the galvano-cautery of inside battery makes breaking of battery cover board, shell and burst disk.Thereby improve the useful life of battery and the fail safe of use.
Brief description of the drawings
Fig. 1 is the vertical view of the embodiment of the present invention;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is the upward view of the embodiment of the present invention;
Fig. 4 is the structural representation of the positive terminal of the embodiment of the present invention;
Fig. 5 is the vertical view of the substrate of the embodiment of the present invention;
Fig. 6 is the B-B cross-sectional view of Fig. 5.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is described in further detail.
The cover plate of power battery of a kind of anti-galvano-cautery of the present embodiment, please refer to accompanying drawing 1 to Fig. 6, comprise substrate 1, on described substrate 1, be provided with positive terminal hole 101 and negative terminal hole 105, interior positive terminal 3 and the negative terminal 9 of being equipped with respectively in described positive terminal hole 101 and negative terminal hole 105, the upper surface that described positive terminal hole 101 and negative terminal hole 105 are positioned at substrate is set to step 102, 106, near the lower surface that described substrate 1 is positioned at positive terminal hole 101 and negative terminal hole 105 is provided with multiple substrate blind holes 107, described positive terminal 3 and negative terminal 9 butt substrate 1 lower surface places are all provided with the pole blind hole 303 matching with substrate blind hole 107, between described substrate blind hole 107 and corresponding pole blind hole 303, embed and have cylindrical ceramic 7, the upper surface that described positive terminal 3 is positioned at substrate 1 is closely arranged with stiffened semiconductor plastic pad 5, the below of described semiconductor plastic pad 5 embeds in the step 102 in positive terminal hole 101.
The substrate 1 of the present embodiment is to be made through punch process through mould and stamping machine by aluminium.Cylindrical ceramic 7 is to form through high temperature sintering with alundum (Al2O3).Positive terminal 4 is to form by aluminium is machined.Negative terminal 7 is to form by copper material is machined.Stiffened semiconductor plastic pad 5 is formed with the organic material injection molding with characteristic of semiconductor by corrosion-resistant.
The substrate 1 of the present embodiment is in the time of punch process, change by mould, lower surface around positive terminal hole 101 and negative terminal hole 105 stamps out respectively some substrate blind holes 107, thereby has greatly increased the sealing of pole to the relative rotational resistance of substrate and after riveting by packing cylindrical ceramic 7 into.So just reach and added the moment of torsion of large cover and prevent the object of overvoltage on bubble-tight impact; The present embodiment arranges semiconductor plastic pad 5 and can effectively improve the electromotive force of battery case and cover plate between positive terminal 3 and substrate 1, prevents that battery case and cover plate from being the galvano-cautery of burst disk by it.Prevent battery cover board and shell by the electromotive force that improves cover plate, particularly on cover plate about the galvano-cautery of the burst disk of security performance, avoided electrokinetic cell in normal use procedure because the galvano-cautery of inside battery makes breaking of battery cover board, shell and burst disk.Thereby improve the useful life of battery and the fail safe of use.
The cover plate of power battery of the anti-galvano-cautery of the present embodiment, please refer to Fig. 2 and Fig. 4, on the basis of previous technique scheme, can also be specifically, the top of positive terminal 3 and negative terminal 9 is all provided with a pole draw-in groove 302, the upper surface that described negative terminal 9 is positioned at substrate is closely arranged with negative pole plastic pad 10, between described positive terminal 3 and negative terminal 9 and substrate 1 lower surface, be all arranged with seal washer 6, on described pole draw-in groove 302, be arranged with jump ring 4 for axle, described axle is fastened on semiconductor plastic pad 5 upper surfaces with jump ring 4 and by positive terminal 3, seal washer 6 and semiconductor plastic pad 5 are closely stuck on substrate 1, or described axle is fastened on negative pole plastic pad 10 upper surfaces with jump ring 4 and by negative terminal 6, seal washer 6 and negative pole plastic pad 10 are closely stuck on substrate.
Seal washer 6 is to be formed through injection molding by corrosion resistant temperature-resistant material.Axle is to be stamped to form with stainless steel with jump ring 4.Substrate 1 is after punch process moulding, positive terminal 3 and negative terminal 9 are respectively through injection moulding seal washer 6, positive terminal 3 is after passing seal washer 6 and pack cylindrical ceramic 7 into pole blind hole 301, between substrate 1, pass again, through stiffened semiconductor plastic pad 5 and with external pliers, axle jump ring 4 is blocked to upper positive terminal 3 again, then axle jump ring 4 is pressed in pole draw-in groove 302 with special fixture.Positive terminal 3 and negative terminal 9 process a circle pole draw-in groove 302 man-hour adding on cylinder, thereby the whole assembling of cover plate can be by being used axle to fix other part with jump ring 4, and need not use riveted joint pole to fix the part of cover plate, thereby in guarantee smooth and cover plate processing convenient of cover plate, the pole column hole upper surface of substrate 1 increases pole column hole round platform rank, make substrate accurate positioning when with the assembling of annular pottery, be convenient to assembling and enhance productivity.
The cover plate of power battery of the anti-galvano-cautery of the present embodiment, please refer to Fig. 1 and Fig. 2, on the basis of previous technique scheme, can also be specifically, and the upper surface that positive terminal 3 is positioned at substrate 1 is arranged with an anodal protection plastic pad 2.Negative terminal position 9 is arranged with a negative pole protection plastic pad 11 in the upper surface of substrate 1.Anodal protection plastic pad 2 is through injection molded with plastic material with negative pole protection plastic pad 11.
The cover plate of power battery of the anti-galvano-cautery of the present embodiment, please refer to Fig. 1 and Fig. 2, on the basis of previous technique scheme, can also be specifically, on substrate 1, be provided with explosionproof hole 104, in described explosionproof hole 104, be provided with burst disk 8, explosionproof hole 104 upper surfaces are provided with burst disk paster 81.Burst disk 8 is to be stamped to form with aluminium; burst disk paster 81 is to cut rear section glue with plastic rubber material to be made; rupture pressure disc 8 and substrate 1 are through laser welding; the cover plate assembling is put into injection mold injection moulding and complete lower insulation plastic cement, anodal protection plastic pad 2, negative pole protection plastic pad 11, make the completed power battery cover board for whole battery.
The cover plate of power battery of the anti-galvano-cautery of the present embodiment, please refer to Fig. 1 and Fig. 2, on the basis of previous technique scheme, can also be specifically, is also provided with liquid injection hole 103 on substrate 1.
The cover plate of power battery of the anti-galvano-cautery of the present embodiment, please refer to Fig. 2 and Fig. 4, on the basis of previous technique scheme, can also be specifically, and positive terminal 3 is connected internal thread 301 with being all provided with in negative terminal 9.Because the riveted joint briquetting surface of prior art is plane, can only carry out outside by laser welding connects, and it is directly inadequate with cover plate rivet force and the spline moment of torsion of bolt riveted joint, the inventor considers fully the advantage and defect of two kinds of modes in the time of design, after assembling, in pole planar central, increase a screwed hole 301 be set, can meet simultaneously two kinds of different connected modes effect also guarantee efficiency and reliability.The inventor has solved when power cover plate is threaded connection and has turned round hypodynamic problem, and effectively ensures air-tightness, makes convenient and fast connection between battery, and fail safe simultaneously is also improved.Can make the quick and stable development of electrokinetic cell industry, be beneficial to producing by batch of electrokinetic cell, supply the demand of electric automobile, so just can better realize practical value and the economic worth of cover plate of power battery of the present invention.
The cover plate of power battery of the anti-galvano-cautery of the present embodiment, please refer to Fig. 2, on the basis of previous technique scheme, can also be specifically, and substrate 1 lower surface is also provided with the insulation spacer 5 of injection moulding.Insulation spacer 5 is injection molded by plastic material process,
More than that the cover plate of power battery of the anti-galvano-cautery of the present invention is set forth; be used for helping to understand the present invention; but embodiments of the present invention are not restricted to the described embodiments; anyly do not deviate from the change done under the principle of the invention, modification, substitute, combination, simplify; all should be equivalent substitute mode, be included in protection scope of the present invention in.
Claims (8)
1. the cover plate of power battery of an anti-galvano-cautery, it is characterized in that: comprise substrate, on described substrate, be provided with positive terminal hole and negative terminal hole, in described positive terminal hole and negative terminal hole, be equipped with respectively positive terminal and negative terminal, the upper surface that described positive terminal hole and negative terminal hole are positioned at substrate is set to step, near the lower surface that described substrate is positioned at positive terminal hole and negative terminal hole is provided with multiple substrate blind holes, described positive terminal and negative terminal butt base lower surface place are all provided with the pole blind hole matching with substrate blind hole, between described substrate blind hole and corresponding pole blind hole, embed and have ceramics pole, the upper surface that described positive terminal is positioned at substrate is closely arranged with semiconductor plastic pad, the below of described semiconductor plastic pad embeds in the step in positive terminal hole.
2. the cover plate of power battery of anti-galvano-cautery according to claim 1, it is characterized in that: the top of described positive terminal and negative terminal is all provided with a pole draw-in groove, the upper surface that described negative terminal is positioned at substrate is closely arranged with negative pole plastic pad, between described positive terminal and negative terminal and base lower surface, be all arranged with seal washer, on described pole draw-in groove, be arranged with axle jump ring, described axle is fastened on semiconductor plastic pad upper surface with jump ring and by positive terminal, seal washer and semiconductor plastic pad are closely stuck on substrate, or described axle is fastened on negative pole plastic pad upper surface with jump ring and by negative terminal, seal washer and negative pole plastic pad are closely stuck on substrate.
3. the cover plate of power battery of anti-galvano-cautery according to claim 1 and 2, is characterized in that: the upper surface that described positive terminal is positioned at substrate is arranged with an anodal protection plastic pad.
4. the cover plate of power battery of anti-galvano-cautery according to claim 1 and 2, is characterized in that: the upper surface that described negative terminal is positioned at substrate is arranged with a negative pole protection plastic pad.
5. the cover plate of power battery of anti-galvano-cautery according to claim 1 and 2, is characterized in that: on described substrate, be provided with explosionproof hole, in described explosionproof hole, be provided with burst disk, described explosionproof hole upper surface is provided with burst disk paster.
6. the cover plate of power battery of anti-galvano-cautery according to claim 1 and 2, is characterized in that: on described substrate, be also provided with liquid injection hole.
7. the cover plate of power battery of anti-galvano-cautery according to claim 1 and 2, is characterized in that: in described positive terminal and negative terminal, be all provided with connection internal thread.
8. the cover plate of power battery of anti-galvano-cautery according to claim 1 and 2, is characterized in that: described base lower surface is also provided with the insulation spacer of injection moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139133.7A CN103904257B (en) | 2014-04-08 | 2014-04-08 | The cover plate of power battery of anti-galvano-cautery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139133.7A CN103904257B (en) | 2014-04-08 | 2014-04-08 | The cover plate of power battery of anti-galvano-cautery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103904257A true CN103904257A (en) | 2014-07-02 |
| CN103904257B CN103904257B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410139133.7A Active CN103904257B (en) | 2014-04-08 | 2014-04-08 | The cover plate of power battery of anti-galvano-cautery |
Country Status (1)
| Country | Link |
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| CN (1) | CN103904257B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702889A (en) * | 2016-04-08 | 2016-06-22 | 深圳市瑞德丰精密制造有限公司 | Forming method of battery top cap |
| CN106684269A (en) * | 2017-01-19 | 2017-05-17 | 佛山市康荣精细陶瓷有限公司 | Cover plate structure for lithium battery and manufacturing method thereof |
| WO2017198136A1 (en) * | 2016-05-16 | 2017-11-23 | 宁德时代新能源科技股份有限公司 | Top cover of secondary battery |
| CN111213258A (en) * | 2017-10-17 | 2020-05-29 | 罗伯特·博世有限公司 | Energy storage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105702889A (en) * | 2016-04-08 | 2016-06-22 | 深圳市瑞德丰精密制造有限公司 | Forming method of battery top cap |
| CN105702889B (en) * | 2016-04-08 | 2018-05-08 | 深圳市瑞德丰精密制造有限公司 | The forming method of battery cap |
| WO2017198136A1 (en) * | 2016-05-16 | 2017-11-23 | 宁德时代新能源科技股份有限公司 | Top cover of secondary battery |
| CN106684269A (en) * | 2017-01-19 | 2017-05-17 | 佛山市康荣精细陶瓷有限公司 | Cover plate structure for lithium battery and manufacturing method thereof |
| CN111213258A (en) * | 2017-10-17 | 2020-05-29 | 罗伯特·博世有限公司 | Energy storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103904257B (en) | 2017-03-08 |
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