CN110707244A - Square aluminum-shell battery cover plate of E-BIKE - Google Patents
Square aluminum-shell battery cover plate of E-BIKE Download PDFInfo
- Publication number
- CN110707244A CN110707244A CN201910995051.5A CN201910995051A CN110707244A CN 110707244 A CN110707244 A CN 110707244A CN 201910995051 A CN201910995051 A CN 201910995051A CN 110707244 A CN110707244 A CN 110707244A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- electrode
- bike
- battery
- square aluminum
- 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.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 46
- 239000004033 plastic Substances 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 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
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
-
- 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
- H01M50/317—Re-sealable arrangements
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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 provides an E-BIKE square aluminum shell battery cover plate, and belongs to the technical field of lithium ion batteries. The square aluminum shell battery solves the problems that the conventional square aluminum shell battery for E-BIKE is not beneficial to automatic production, has high contact internal resistance, breaks in tabs, causes short circuit and ignition of the battery, has poor sealing reliability and is easy to generate electrochemical corrosion. The battery cell fixing structure comprises a cover plate substrate, a flexible electrode connecting sheet and an electrode rivet, wherein the flexible electrode connecting sheet is used for connecting a lug of a battery cell, the electrode rivet is arranged on the flexible electrode connecting sheet, a through hole used for installing the electrode rivet is formed in the cover plate substrate, the electrode rivet is used for fixedly installing the flexible electrode connecting sheet on the cover plate substrate, the battery cell fixing structure further comprises a lower plastic frame used for installing the battery cell and the cover plate substrate, and a bulge abutted against the battery cell is arranged at the bottom of the lower plastic frame. The invention is beneficial to automatic production, the contact internal resistance between the cell and the cover plate is small, the cell is not easy to break, the cell short circuit is avoided, the sealing performance is good, and the electrochemical corrosion is reduced.
Description
Technical Field
The invention relates to the technical field of lithium ion batteries, in particular to an E-BIKE square aluminum shell battery cover plate.
Background
After the new national standard of the electric bicycle is implemented, as the lithium ion battery has the advantages of high working voltage, high specific energy and the like, electric bicycle manufacturers use the lithium ion battery to replace the original lead-acid battery, and the application of the lithium ion battery to the E-BIKE is greatly increased in the future; at present, lithium ion batteries mainly comprise three types of batteries, namely cylindrical batteries, soft packages and square aluminum shells, the cylindrical batteries can meet the requirement that the batteries are connected in parallel to meet the requirement that the battery consistency is high due to low monomer capacity, and the soft packages need to be added with a protection device to ensure the battery safety due to the packaging characteristic, so the PACK cost of the cylindrical batteries and the soft packages can be increased; because the E-BIKE battery has higher requirement on cost control, most E-BIKE manufacturers favor a square aluminum shell battery with lower PACK cost; the current square aluminum shell battery structure commonly used by the E-BIKE has the following defects: a) the cover plate and the battery cell lug are directly riveted, so that the automatic production is not facilitated; b) the riveting structure has large internal resistance of the battery cell, and the contact internal resistance is basically 0.5m omega; c) the shaking gap between the battery core and the aluminum shell is large, and the tabs are broken due to the vibration of the battery in the use process; causing short circuit and ignition of the battery; d) the sealing reliability is poor by adopting a shaft sealing mode; e) the positive electrode and the aluminum shell are insulated, and the aluminum shell can be subjected to electrochemical corrosion to cause the aluminum shell to break to cause safety accidents under the condition of high potential after the battery PACK.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides the E-BIKE square aluminum shell battery cover plate which is convenient for automatic production, reduces the occurrence of tab fracture and avoids short-circuit ignition of the battery.
In order to realize the purpose of the invention, the invention adopts the following technical scheme: the utility model provides a square aluminum hull battery apron of E-BIKE, includes the apron base plate, its characterized in that still includes soft electrode connection piece, the electrode rivet that is used for connecting electric core utmost point ear, soft electrode connection piece on offer the through-hole that is used for installing the electrode rivet, the apron base plate on also offer the through-hole that is used for installing the electrode rivet, the electrode rivet with soft electrode connection piece fixed mounting on the apron base plate, still mould the frame under including being used for installing electric core and apron base plate, lower mould the arch that the frame bottom was equipped with the butt electric core.
The working principle of the invention is as follows: install this apron on the square aluminum hull of installing electric core, the positive negative electrode utmost point ear and the soft electrode connection piece of electric core are connected, be different from the direct mode with the apron riveting of traditional electric core utmost point ear, this apron adopts soft electrode connection piece and electric core utmost point ear to be connected, can increase the vibration buffering and play and prevent the cracked problem of utmost point ear, also be favorable to automated production, the arch of moulding the frame bottom down simultaneously can prevent that electric core from rocking in square aluminum hull is inside, also can improve the resistant vibration ability of electric core utmost point ear.
In the above-mentioned E-bire square aluminum-shell battery cover plate, the flexible electrode connecting sheet includes a clamp for clamping a tab of the battery core and an installation plate fixed to the cover plate substrate, and the clamp and the installation plate are of an integrated structure.
In the cover plate of the E-BIKE square aluminum shell battery, the flexible electrode connecting sheet is fixedly connected with the battery core lug through ultrasonic welding.
In the square aluminum-shell battery cover plate of the E-BIKE, the bulge of the lower plastic frame comprises a boss positioned in the middle of the bottom of the lower plastic frame and abutting parts positioned at two ends, a plurality of protruding abutting pieces are arranged on the abutting parts, and the abutting pieces are used for abutting against the upper surface of the battery core.
The cover plate for the E-BIKE square aluminum shell battery further comprises an insulating film, and the insulating film is used for wrapping the battery core and fixedly connected with the lower plastic frame.
In the cover plate for the E-BIKE square aluminum shell battery, the cover plate substrate is further provided with a mounting groove for mounting the plastic block on the electrode, and the plastic block on the electrode is further provided with a hole for mounting the electrode rivet.
In the square aluminum shell battery cover plate with the E-BIKE structure, the electrode is provided with a notch for installing the electrode pole column block on the plastic block, the electrode pole column block is also provided with a hole for installing an electrode rivet, and the bottom of the electrode pole column block is abutted to the plastic block on the electrode and is fixed on the upper surface of the cover plate substrate through the electrode rivet.
In the cover plate for the E-bire square aluminum-shell battery, the plastic block on the electrode positioned at the positive electrode is made of a semi-conductive plastic piece, so that the positive electrode and the aluminum shell form a semi-conductive state.
In the square aluminum shell battery apron of foretell E-BIKE, the boss inside be the trough-like, the boss lower surface be equipped with a plurality of air vents, the apron base plate on set up with mould the through-hole of a boss intercommunication down, the air vent circumference still be equipped with the fluting of installation explosion-proof valve support outward, explosion-proof valve support on still install explosion-proof valve, boss, explosion-proof valve support, explosion-proof valve constitute electric core explosion-proof mechanism.
In the cover plate of the E-BIKE square aluminum shell battery, the explosion-proof valve bracket is fixedly connected with the cover plate base plate through welding.
In the cover plate of the E-BIKE square aluminum shell battery, a sealing ring is further arranged between the cover plate substrate and the lower plastic frame, and the sealing ring is sleeved on the electrode rivet to seal the cover plate substrate and the lower plastic frame.
Compared with the prior art, the square E-BIKE aluminum shell battery cover plate has the beneficial effects that: the invention has the advantages of being beneficial to automatic production, small contact internal resistance between the battery core and the cover plate, difficult breakage of the battery core, avoiding the occurrence of short circuit of the battery, good sealing performance and preventing the aluminum shell from breaking and causing safety accidents caused by electrochemical corrosion.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is an isometric schematic view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a partial enlarged view of the internal structure of the present invention;
fig. 5 is a schematic view of the internal structure of the present invention.
In the figure, 1, a cover substrate; 2. a battery core tab; 3. a flexible electrode connecting sheet; 4. an electrode rivet; 5. a lower plastic frame; 6. a protrusion; 7. a clip body; 8. mounting a plate; 9. a boss; 10. an abutting portion; 11. abutting the sheet; 12. an insulating film; 13. mounting grooves; 14. plastic blocks are arranged on the electrodes; 15. an electrode pole column block; 16. an aluminum shell; 17. an explosion-proof valve support; 18. an explosion-proof valve; 19. a battery cell explosion-proof mechanism; 20. and (5) sealing rings.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-5, the E-BIKE square aluminum-shell battery cover plate comprises a cover plate substrate 1, a flexible electrode connecting sheet 3 and an electrode rivet 4, wherein the flexible electrode connecting sheet 3 is used for connecting an electric core lug 2, a through hole used for installing the electrode rivet 4 is formed in the flexible electrode connecting sheet 3, a through hole used for installing the electrode rivet 4 is also formed in the cover plate substrate 1, the electrode rivet 4 fixedly installs the flexible electrode connecting sheet 3 on the cover plate substrate 1, the E-BIKE square aluminum-shell battery cover plate further comprises a lower plastic frame 5 used for installing an electric core and the cover plate substrate 1, and a protrusion 6 abutted against the electric core is arranged at the bottom of the lower plastic frame 5. The flexible electrode connecting sheet 3 comprises a positive electrode and a negative electrode, wherein the positive electrode is made of aluminum, and the negative electrode is made of copper. The flaky aluminum sheet and the flaky copper sheet have certain elasticity and can play an effective buffering role. The electrode rivet 4 is divided into a positive electrode rivet and a negative electrode rivet.
In further detail, the flexible electrode connecting sheet 3 comprises a clamp body 7 used for clamping the battery core tab 2 and an installation plate 8 fixed with the cover plate substrate 1, and the clamp body 7 and the installation plate 8 are of an integrated structure.
In further detail, the flexible electrode connecting sheet 3 and the battery cell tab 2 are fixedly connected through ultrasonic welding. The riveting of the positive and negative flexible electrode connecting sheets 3 is completed when the cover plate is manufactured, namely, the flexible electrode connecting sheets 3 are fixed at the bottom of the cover plate substrate 1 by the electrode rivets 4 respectively penetrating through the through holes of the flexible electrode connecting sheets 3 and the through holes of the cover plate substrate 1, and then the flexible electrode connecting sheets 3 are fixedly connected by ultrasonic welding after clamping the battery cell tabs 2 through the clamps 7.
Further saying, lower mould protruding 6 of frame 5 including be located lower mould the boss 9 in the middle part of frame 5 bottom and be located the butt portion 10 at both ends, butt portion 10 on be equipped with a plurality of outstanding butt pieces 11, butt piece 11 be used for the butt at electric core upper surface. The abutting piece 11 can increase the contact area.
In further detail, in order to prevent the cell tab 2 and the flexible electrode connecting sheet 3 from contacting the aluminum shell 16 to form a short circuit when being folded, the battery further comprises an insulating film 12, and the insulating film 12 is used for wrapping the cell and is fixedly connected with the lower plastic frame 5. The insulating film 12 is preferably a Mylar film, which is a polyester film, has the advantages of excellent temperature resistance and insulating property, good dimensional stability at high temperature, low thermal shrinkage, and excellent flatness when heated.
According to the height difference between the internal height of the aluminum shell 16 and the width of the diaphragm of the insulating film 12, the size of the corresponding cover plate lower plastic frame 5 is designed, so that the lower plastic frame 5 presses the diaphragm edge of the insulating film 12 after the battery is assembled, the battery cell is prevented from shaking in the aluminum shell 16, and the vibration resistance of the battery cell is enhanced.
In more detail, the cover plate substrate 1 is further provided with a mounting groove 13 for mounting an electrode upper plastic block 14, and the electrode upper plastic block 14 is further provided with a hole for mounting on the electrode rivet 4.
In further detail, the electrode upper plastic block 14 is further provided with a slot for installing the electrode pole column block 15, the electrode pole column block 15 is also provided with a hole for installing the electrode rivet 4, the bottom of the electrode pole column block 15 is abutted to the electrode upper plastic block 14 and is fixed on the upper surface of the cover plate substrate 1 through the electrode rivet 4.
In more detail, the plastic block 14 on the electrode on the positive electrode is made of a semi-conductive plastic part, so that the positive electrode and the shell 16 of the aluminum shell form a semi-conductive state and have a certain resistance. With the adoption of the structure, the problem of corrosion (electrochemical corrosion) of the shell of the aluminum shell 16 during the use of the battery can be effectively solved.
Further saying in detail, boss 9 inside be the trough-like, boss 9 lower surface be equipped with a plurality of air vents, apron base plate 1 on offer with mould the through-hole of 5 boss 9 intercommunications down, the air vent circumference still be equipped with the fluting of installation explosion-proof valve support 17 outward, explosion-proof valve support 17 on still install explosion-proof valve 18, boss 9, explosion-proof valve support 17, explosion-proof valve 18 constitute electric core explosion-proof mechanism 19. By adopting the structure, the pressure accumulated in the charging and discharging process of the battery can be effectively balanced or released, and the aluminum shell 16 is prevented from deforming, leaking or exploding.
In further detail, the explosion-proof valve bracket 17 is fixedly connected with the cover plate base plate 1 through welding. And the explosion-proof valve bracket 17 and the cover plate base plate 1 are welded to carry out a final sealing mode, so that the welding yield is improved. The welding mode is preferably a laser welding process.
The explosion-proof valve 18 and the explosion-proof valve support 17 are welded and then put into an automatic production line to be welded with the cover plate base plate 1, and the thickness of the explosion-proof valve support 17 is preferably more than 0.8mm, so that laser welding can be facilitated.
In a further elaboration, a sealing ring 20 is further arranged between the cover plate substrate 1 and the lower plastic frame 5, and the electrode rivet 4 is sleeved with the sealing ring 20 to seal the cover plate substrate 1 and the lower plastic frame 5. The structure of shaft sealing and surface sealing is adopted, so that the air tightness of the battery is greatly improved, and the environmental change adaptability (environmental temperature, road conditions and the like) of the E-BIKE battery is also improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the cover plate substrate 1, the cell tab 2, the flexible electrode connecting sheet 3, the electrode rivet 4, the lower molding frame 5, the protrusion 6, the clamp body 7, the mounting plate 8, the boss 9, the abutting portion 10, the abutting sheet 11, the insulating film 12, the mounting groove 13, the upper electrode plastic block 14, the electrode post block 15, the aluminum shell 16, the explosion-proof valve support 17, the explosion-proof valve 18, the cell explosion-proof mechanism 19, the sealing ring 20, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a square aluminum hull battery apron of E-BIKE, includes apron base plate (1), its characterized in that still includes soft electrode connection piece (3), electrode rivet (4) that are used for connecting electric core utmost point ear (2), soft electrode connection piece (3) on offer the through-hole that is used for installing electrode rivet (4), apron base plate (1) on also offer the through-hole that is used for installing electrode rivet (4), electrode rivet (4) with soft electrode connection piece (3) fixed mounting on apron base plate (1), the battery apron is still including the lower frame (5) of moulding that is used for installing electric core and apron base plate (1), lower mould frame (5) bottom be equipped with arch (6) of butt electric core.
2. The cover plate for the E-BIKE square aluminum shell battery according to claim 1, wherein the soft electrode connecting sheet (3) comprises a clamp body (7) for clamping the battery core tab (2) and a mounting plate (8) fixed with the cover plate substrate (1), and the clamp body (7) and the mounting plate (8) are of an integrated structure.
3. The cover plate for the E-BIKE square aluminum shell battery as claimed in claim 1, wherein the soft electrode connecting plate (3) and the cell tab (2) are fixedly connected by ultrasonic welding.
4. The cover plate of the E-BIKE square aluminum shell battery as claimed in claim 1, wherein the bulge (6) of the lower molding frame (5) comprises a boss (9) located in the middle of the bottom of the lower molding frame (5) and abutting parts (10) located at two ends, a plurality of protruding abutting pieces (11) are arranged on the abutting parts (10), and the abutting pieces (11) are used for abutting against the upper surface of the battery core.
5. The cover plate for the E-BIKE square aluminum shell battery according to claim 1, further comprising an insulating film (12), wherein the insulating film (12) is used for wrapping the battery core and is fixedly connected with the lower plastic frame (5).
6. The cover plate for the E-BIKE square aluminum shell battery according to claim 1, wherein the cover plate base plate (1) is further provided with an installation groove (13) for installing an upper electrode plastic block (14), and the upper electrode plastic block (14) is further provided with an opening for installing an electrode rivet (4).
7. The cover plate for the E-BIKE square aluminum shell battery according to claim 1, wherein the electrode upper plastic block (14) is further provided with a slot for installing the electrode pole block (15), the electrode pole block (15) is also provided with a hole for installing the electrode rivet (4), and the bottom of the electrode pole block (15) is abutted and installed on the electrode upper plastic block (14) and is fixed on the upper surface of the cover plate substrate (1) through the electrode rivet (4).
8. The cover plate for the E-BIKE square aluminum shell battery as claimed in claim 1, wherein the plastic block (14) on the positive electrode is made of a semi-conductive plastic piece, so that the positive electrode and the shell of the aluminum shell (16) form a semi-conductive state.
9. The cover plate for the E-BIKE square aluminum shell battery according to claim 1, wherein the boss (9) is groove-shaped, a plurality of vent holes are formed in the lower surface of the boss (9), a through hole communicated with the boss (9) of the lower plastic frame (5) is formed in the cover plate substrate (1), a groove for installing an explosion-proof valve support (17) is further formed in the periphery of each vent hole, an explosion-proof valve (18) is further installed on the explosion-proof valve support (17), an electric core explosion-proof mechanism (19) is formed by the boss (9), the explosion-proof valve support (17) and the explosion-proof valve (18), and the explosion-proof valve support (17) and the cover plate substrate (1) are fixedly connected through welding.
10. The cover plate for the E-BIKE square aluminum shell battery according to claim 1, wherein a sealing ring (20) is further arranged between the cover plate base plate (1) and the lower molding frame (5), and the sealing ring (20) is sleeved on the electrode rivet (4) to seal the cover plate base plate (1) and the lower molding frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910995051.5A CN110707244A (en) | 2019-10-18 | 2019-10-18 | Square aluminum-shell battery cover plate of E-BIKE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910995051.5A CN110707244A (en) | 2019-10-18 | 2019-10-18 | Square aluminum-shell battery cover plate of E-BIKE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110707244A true CN110707244A (en) | 2020-01-17 |
Family
ID=69200583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910995051.5A Pending CN110707244A (en) | 2019-10-18 | 2019-10-18 | Square aluminum-shell battery cover plate of E-BIKE |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110707244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114914591A (en) * | 2022-06-17 | 2022-08-16 | 湖北亿纬动力有限公司 | Battery cell |
-
2019
- 2019-10-18 CN CN201910995051.5A patent/CN110707244A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114914591A (en) * | 2022-06-17 | 2022-08-16 | 湖北亿纬动力有限公司 | Battery cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230032938A1 (en) | Battery top cover assembly structure | |
| CN112820988A (en) | Power battery top cover structure and power battery | |
| KR101182284B1 (en) | Rechargeable battery | |
| WO2018157557A1 (en) | Battery module | |
| CN108198989B (en) | Connecting member and rechargeable battery | |
| WO2021179525A1 (en) | Battery top cover structure and assembly method | |
| CN212062562U (en) | Reinforcing structure of battery top cover pole and battery | |
| CN216213745U (en) | Square secondary battery's top cap and secondary battery | |
| CN207651538U (en) | A kind of battery | |
| WO2021036685A1 (en) | Battery cover and pole assembly structure and assembly method | |
| CN215834606U (en) | Power battery top cap, battery and power consumption device | |
| CN214378624U (en) | Battery connection piece mounting structure, battery module and battery | |
| US20240162541A1 (en) | Electrochemical apparatus and electric apparatus | |
| CN213905519U (en) | Square battery | |
| CN110707244A (en) | Square aluminum-shell battery cover plate of E-BIKE | |
| CN212182475U (en) | Ear-free electric core and battery module | |
| CN108123179B (en) | Power battery of electric automobile | |
| CN210006771U (en) | kinds of power battery top cover and power battery | |
| CN219180634U (en) | Power battery cover plate and battery | |
| CN211062749U (en) | Square aluminum-shell battery cover plate of E-BIKE | |
| CN218867177U (en) | Battery cell, battery and power consumption device | |
| CN218827727U (en) | Battery, battery pack and vehicle | |
| WO2020224003A1 (en) | Battery cap assembly and battery | |
| CN216015523U (en) | Top cap subassembly and electric core of electric core | |
| CN214706060U (en) | Lithium battery structure and lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 313100 18 Changxing County Road, Changxing County, Zhejiang Applicant after: Tianneng Shuai Fude Energy Co., Ltd Address before: 313100 18 Changxing County Road, Changxing County, Zhejiang Applicant before: Zhejiang energy energy Polytron Technologies Inc |