CN206595352U - A kind of novel coiling formula polymer lithium ion battery electric core - Google Patents
A kind of novel coiling formula polymer lithium ion battery electric core Download PDFInfo
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- CN206595352U CN206595352U CN201621487010.3U CN201621487010U CN206595352U CN 206595352 U CN206595352 U CN 206595352U CN 201621487010 U CN201621487010 U CN 201621487010U CN 206595352 U CN206595352 U CN 206595352U
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- barrier film
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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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- 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
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Abstract
The utility model is related to a kind of novel coiling formula polymer lithium ion battery electric core, including positive plate, negative plate, anode ear, negative electrode lug, barrier film, volume pin and head gummed paper 3, described positive plate is located at the outside of barrier film, negative plate is located at the inner side of barrier film, described positive plate and the sheet head of negative plate are equipped with the empty paper tinsel metal tape of half-turn, the empty paper tinsel metal tape of the half-turn of positive plate is by a bending part welding anode ear, and the empty paper tinsel metal tape of half-turn of negative plate is by a bending part welding negative electrode lug.The utility model solves cathode pole piece head and crimped caused by force unbalance, reduces coming off for one side material；Facilitate Semi-automatic rolling around when pole piece insertion, be conducive to the control of cell polar ear centre-to-centre spacing；By optimizing cathode pole piece head construction, battery core K values are reduced, battery core self discharge is reduced and causes the bad probability of performance.
Description
Technical field
The utility model is related to a kind of lithium ion battery, more particularly to a kind of novel coiling formula polymer Li-ion battery
Battery core.
Background technology
The battery core of coiled type polymer lithium ion battery is mainly made up of positive/negative plate, barrier film, lug, aluminum plastic film.In electricity
Still it is difficult to accomplish absolute dustless although 5S is accomplished in workshop during core makes.Especially in Semi-automatic rolling in, although pole piece is
Through passing through brush dust, external force can still result in curling that pole piece one side auxiliary material causes so as to dry linting, ultimately result in core dust serious very
To barrier film is pierced through, the self discharge of later stage battery is caused.Lithium ion battery self discharge can cause battery capacity to lose.Made in battery
In technical process, influence the factor of self-discharge of battery a lot, wherein the micro-short circuit that the dust impurities in being made are caused is to cause electricity
Pond self discharge main reason bigger than normal.In actual production, self discharge is weighed by measuring battery core K values interior for a period of time
Degree.
The content of the invention
There is provided a kind of novel coiling formula polymer lithium ion battery electric aiming above mentioned problem for the purpose of this utility model
Core.
The technical scheme that the utility model is used is：A kind of novel coiling formula polymer lithium ion battery electric core, including
Positive plate 1, negative plate 2, anode ear 13, negative electrode lug 23, barrier film 3, volume pin 4 and head gummed paper 23, described positive plate be located at every
The outside of film, negative plate is located at the inner side of barrier film, and described positive plate and the sheet head of negative plate are equipped with the empty paper tinsel gold of half-turn
Belong to band, the empty paper tinsel metal tape of half-turn of positive plate is by a bending part welding anode ear, the empty paper tinsel metal tape warp of half-turn of negative plate
Cross a bending part welding negative electrode lug.
Post thick 30 μm of head gummed papers 23 in described negative plate its head welding electrode ear Mian Kongbo areas.
The beneficial effects of the utility model：
（1）The application solves cathode pole piece head and rolled up caused by force unbalance by changing negative pole head construction
Song, reduces coming off for one side material；
（2）The application by increasing the gummed paper of negative pole sheet head, facilitate Semi-automatic rolling around when pole piece insertion, favorably
In the control of cell polar ear centre-to-centre spacing；
（3）The application reduces battery core K values by optimizing cathode pole piece head construction, reduces battery core self discharge and causes
The bad probability of performance.
Brief description of the drawings
Fig. 1 is the battery core cross-sectional view of the one of embodiment of the utility model.
Fig. 2 is K value experiment statisticses tables after battery core improves.
Fig. 3 is K value experiment statisticses tables before battery core improves.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
The every other embodiment obtained is put, the scope of the utility model protection is belonged to.
As depicted in figs. 1 and 2, the utility model includes：Positive plate 1, negative plate 2, anode ear 13 and negative electrode lug 23, barrier film
3rd, volume pin 4 and head gummed paper 24, positive plate are provided with anode material, and anode material is coated on aluminium foil, and negative plate is provided with negative pole material,
Negative pole material is coated on copper foil, and described positive plate is located at the outside of barrier film, and cathode pole piece is located at the inner side of barrier film, described
There is the empty paper tinsel metal tape of half-turn on the head of positive plate and negative plate, and half-turn sky paper tinsel metal tape is by a bending part welding anode ear
And negative plate.Thick 30 μm of head gummed papers 24 are posted at negative plate its head welding electrode ear Mian Kongbo areas.
Claims (2)
1. a kind of novel coiling formula polymer lithium ion battery electric core, including positive plate（1）, negative plate（2）, anode ear（13）、
Negative electrode lug（23）, barrier film（3）, volume pin（4）With head gummed paper（24）, described positive plate is positioned at the outside of barrier film, negative plate
Positioned at the inner side of barrier film, it is characterised in that：Described positive plate and the sheet head of negative plate are equipped with the empty paper tinsel metal tape of half-turn, just
The empty paper tinsel metal tape of the half-turn of pole piece is by a bending part welding anode ear, and the empty paper tinsel metal tape of half-turn of negative plate is by a folding
Weld negative electrode lug in crook.
2. a kind of novel coiling formula polymer lithium ion battery electric core according to claim 1, it is characterised in that：Described
Post thick 30 μm of head gummed papers in negative plate its head welding electrode ear Mian Kongbo areas（24）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621487010.3U CN206595352U (en) | 2016-12-31 | 2016-12-31 | A kind of novel coiling formula polymer lithium ion battery electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621487010.3U CN206595352U (en) | 2016-12-31 | 2016-12-31 | A kind of novel coiling formula polymer lithium ion battery electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206595352U true CN206595352U (en) | 2017-10-27 |
Family
ID=60131352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621487010.3U Active CN206595352U (en) | 2016-12-31 | 2016-12-31 | A kind of novel coiling formula polymer lithium ion battery electric core |
Country Status (1)
| Country | Link |
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| CN (1) | CN206595352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616701A (en) * | 2019-01-14 | 2019-04-12 | 苏州杰锐思自动化设备有限公司 | A kind of battery core rolling device |
| CN112467072A (en) * | 2020-11-20 | 2021-03-09 | 汕尾天贸新能源科技有限公司 | Novel pole piece structure of pole lug wrapped winding type small polymer lithium ion battery |
| CN116581396A (en) * | 2023-07-10 | 2023-08-11 | 宁德新能源科技有限公司 | Battery core and electric equipment |
-
2016
- 2016-12-31 CN CN201621487010.3U patent/CN206595352U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616701A (en) * | 2019-01-14 | 2019-04-12 | 苏州杰锐思自动化设备有限公司 | A kind of battery core rolling device |
| CN109616701B (en) * | 2019-01-14 | 2024-03-22 | 苏州杰锐思智能科技股份有限公司 | Battery cell rolling device |
| CN112467072A (en) * | 2020-11-20 | 2021-03-09 | 汕尾天贸新能源科技有限公司 | Novel pole piece structure of pole lug wrapped winding type small polymer lithium ion battery |
| CN116581396A (en) * | 2023-07-10 | 2023-08-11 | 宁德新能源科技有限公司 | Battery core and electric equipment |
| CN116581396B (en) * | 2023-07-10 | 2024-04-05 | 宁德新能源科技有限公司 | Battery core and electric equipment |
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