CN217934155U - Soft-package battery's utmost point ear protection architecture - Google Patents
Soft-package battery's utmost point ear protection architecture Download PDFInfo
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- CN217934155U CN217934155U CN202221917608.7U CN202221917608U CN217934155U CN 217934155 U CN217934155 U CN 217934155U CN 202221917608 U CN202221917608 U CN 202221917608U CN 217934155 U CN217934155 U CN 217934155U
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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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Abstract
The utility model discloses a laminate polymer battery's utmost point ear protection architecture. The utility model comprises a positioning structure, a current-carrying protection sheet and an insulating glue; the positioning structure is made of an insulating soft material, a positive tab preformed hole and a negative tab preformed hole are formed in the positioning structure, fixing grooves are formed in two sides of the positive tab preformed hole and the negative tab preformed hole respectively, and a current-carrying protection sheet is placed in the fixing grooves; the current-carrying protection plate is 4 pieces, and positive and negative electrode lugs are respectively positive and negative. The utility model relates to a laminate polymer battery body, positive pole lug, negative pole lug, insulating location connection structure, the last current-carrying screening glass of connection structure and the insulating connection of current-carrying screening glass upper end glue.
Description
Technical Field
The utility model relates to the technical field of batteries, especially, relate to a laminate polymer battery utmost point ear protection architecture that utmost point ear exposes.
Background
The soft package battery is used as an important device for energy storage of mobile equipment, and has the advantages of high energy density, portability and the like. The tab is used as an important bridge for energy input and output of the soft package battery, and the integrity and good state of the tab must be kept when the tab is used for producing the soft package battery. After the electrode group is packaged, the electrode group needs to be arranged in a turnover box, and the electrode lugs are subjected to collision bending, scratching and short circuit in the turnover process; the metal clamping jaw can also bend and damage the pole lug in the processes of formation, capacity grading and OCV. Obvious fold can appear in the utmost point ear after buckling repeatedly, influences the yields.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the problem that exists among the above-mentioned prior art provides a laminate polymer battery utmost point ear protection architecture, makes electric core utmost point ear state obtain effectual promotion, has promoted the yields.
In order to solve the problems, the utility model adopts the following scheme that the soft package battery tab protection structure comprises a positioning structure, a current-carrying protection sheet and insulating glue; the positioning structure is made of an insulating soft material, a positive tab preformed hole and a negative tab preformed hole are formed in the positioning structure, fixing grooves are formed in two sides of the positive tab preformed hole and the negative tab preformed hole respectively, and a current-carrying protection sheet is placed in the fixing grooves; the current-carrying protection plates are 4, the positive electrode lug and the negative electrode lug are respectively in positive and negative directions, and the size of the current-carrying protection plates is larger than that of the positive electrode lug and the negative electrode lug and completely covers the whole electrode lugs; the insulating glue is connected with the upper end of the current-carrying protection plate at a position of 2-3 mm.
The current-carrying protection plate is made of a metal conductive material with high hardness. The positioning structure is soft silica gel or foam.
The utility model discloses it is to have following beneficial effect:
(1) Positive utmost point ear, negative pole utmost point ear of laminate polymer battery appear buckling, short circuit scheduling problem easily at each process turnover in-process, through the high current-carrying screening glass of installation hardness, effectively avoid the buckling of positive utmost point ear of laminate polymer battery among the turnover process.
(2) Laminate polymer battery needs to activate the battery through becoming to charge in process of production, and the capacity test is carried out to laminate polymer battery to the partial volume process, and the OCV test is screened out from the battery of discharging. In all the procedures, the metal clamping jaw is required to be in contact with the tab, and the tab is very easy to crush and scratch in the contact process. The current-carrying protection sheet can replace a lug to be in direct contact with the metal clamping jaw, has a conductive function, effectively protects the lug from being damaged in the working procedure, and improves the yield.
(3) In the battery welding stage, the tab smoothing process can be effectively removed, and meanwhile, the welding yield and the production speed are improved.
(4) The positioning structure can not only position the current-carrying piece but also effectively protect the front edge of the battery core.
Drawings
Fig. 1 is a schematic front view of a pouch battery according to the present invention;
fig. 2 is a schematic view of a positioning structure in a tab protection structure;
FIG. 3 shows the current-carrying protection sheet connected to the positioning structure;
FIG. 4 shows the connection between the insulating glue and the current-carrying protection sheet and the positioning structure;
fig. 5 is the basis the utility model discloses a laminate polymer battery utmost point ear protection architecture and electric core body's installation schematic diagram.
Detailed Description
The following describes in detail a specific embodiment of the present invention with reference to the drawings, which serve to make the technical solution and effects of the present invention more intuitive and clear for the person to understand. It should be noted that the detailed description and drawings are merely illustrative and should not be construed as limiting the scope of the present invention.
As shown in fig. 1-5, a positioning structure 4 is connected to a top encapsulation region 9 of the battery cell, the positioning structure is made of an insulating flexible material, a positive tab and a negative tab preformed hole 5 are formed in the positioning structure, fixing grooves 6 are respectively formed on two sides of the positive tab and the negative tab preformed hole, and a current-carrying protection sheet is placed in the fixing grooves; the current-carrying protection plates 7 are four, the positive electrode lug and the negative electrode lug are respectively in positive and negative sides, and the size of the current-carrying protection plates is larger than that of the positive electrode lug and the negative electrode lug and completely covers the whole electrode lug; the insulating glue 8 is connected with the upper end of the current-carrying protection plate at a position of 2-3 mm.
When in use, the current-carrying protection sheet 7 is put into the fixed groove 6 which is opened in advance, and the number of the current-carrying protection sheets is four; inserting a positive electrode tab 2 and a negative electrode tab 3 of the battery cell body 1 into a tab preformed hole 5 of the positioning structure 4, wherein the tab preformed hole is matched with the position size of the tab; and finally, connecting the insulating glue 8 to the upper end of the current-carrying protection plate at a position of 2-3 mm. The battery core can be easily taken down before delivery.
The positive pole lug and the negative pole lug are arranged inside the battery cell, and the other end of the positive pole lug and the other end of the negative pole lug extend out of the battery cell to the outside of the battery cell.
The positive electrode lug is an aluminum strip; the negative pole tab is a nickel strap.
The positioning structure is made of soft insulating materials such as foam or plastic, the front thickness of the positioning structure is higher than the front pit punching thickness of the battery core, or the front and back thicknesses of the positioning structure are both smaller than the front pit punching thickness of the battery core.
Location structure passes through draw-in groove or viscose with electric core body and is connected, and the main relative position of fixing a position current-carrying piece and positive and negative pole ear to guarantee can protect positive and negative pole ear completely, use the draw-in groove to connect easy to assemble and take off.
The current-carrying protection plate positioned on the positive pole is connected with the positioning structure through a clamping groove or an adhesive, two pieces of the positive pole ear are positioned on the upper side and the lower side of the positive pole ear and are tightly attached to the positive pole ear, and the length of the current-carrying protection plate is larger than the leakage length of the positive pole ear.
The current-carrying protection plate positioned on the negative electrode is connected with the positioning structure through a clamping groove or an adhesive, two pieces of the positive electrode lug are positioned on the upper portion and the lower portion of the positive electrode lug and are tightly attached to the negative electrode lug, and the length of the current-carrying protection plate is larger than the leakage length of the negative electrode lug.
Claims (3)
1. The utility model provides a laminate polymer battery's utmost point ear protection architecture which characterized in that: comprises a positioning structure, a current-carrying protection sheet and insulating glue; the positioning structure is made of an insulating soft material, a positive tab preformed hole and a negative tab preformed hole are formed in the positioning structure, fixing grooves are formed in two sides of the positive tab preformed hole and the negative tab preformed hole respectively, and a current-carrying protection sheet is placed in the fixing grooves; the current-carrying protection plates are 4, the positive electrode lug and the negative electrode lug are respectively in positive and negative directions, and the size of the current-carrying protection plates is larger than that of the positive electrode lug and the negative electrode lug and completely covers the whole electrode lugs; the insulating glue is connected with the upper end of the current-carrying protection plate at a position of 2-3 mm.
2. The tab protection structure of the pouch battery according to claim 1, wherein the current-carrying protection sheet is a metal conductive material with high hardness.
3. The tab protection structure of the soft package battery according to claim 2, wherein the positioning structure is soft silicone or foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221917608.7U CN217934155U (en) | 2022-07-25 | 2022-07-25 | Soft-package battery's utmost point ear protection architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221917608.7U CN217934155U (en) | 2022-07-25 | 2022-07-25 | Soft-package battery's utmost point ear protection architecture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217934155U true CN217934155U (en) | 2022-11-29 |
Family
ID=84148995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221917608.7U Active CN217934155U (en) | 2022-07-25 | 2022-07-25 | Soft-package battery's utmost point ear protection architecture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217934155U (en) |
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2022
- 2022-07-25 CN CN202221917608.7U patent/CN217934155U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230302 Address after: 300000 No.38 Haitai South Road, Huayuan Industrial Zone (outside the ring), High-tech Zone, Binhai New Area, Tianjin Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: 300384 Tianjin Binhai New Area Binhai high tech Industrial Development Zone (outer ring) 38 Haitai South Road Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |