CN210040444U - Lithium battery lamination structure - Google Patents
Lithium battery lamination structure Download PDFInfo
- Publication number
- CN210040444U CN210040444U CN201920638733.6U CN201920638733U CN210040444U CN 210040444 U CN210040444 U CN 210040444U CN 201920638733 U CN201920638733 U CN 201920638733U CN 210040444 U CN210040444 U CN 210040444U
- Authority
- CN
- China
- Prior art keywords
- plate body
- positive
- negative
- diaphragm
- lithium battery
- 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.)
- Expired - Fee Related
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- 238000003475 lamination Methods 0.000 title claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Primary Cells (AREA)
Abstract
The utility model relates to a lithium battery lamination structure, belonging to the technical field of lithium batteries; the positive plate bodies and the negative plate bodies are stacked in a staggered mode; the diaphragm is arranged between the positive plate body and the negative plate body in a penetrating mode; the open ends of the positive plate body and the negative plate body are respectively provided with a positive tab and a negative tab; the positive electrode lug and the negative electrode lug are positioned on two different sides. The novel lithium battery die cutting device is simple in structure, convenient to operate, flexible and stable, capable of preventing the material wires formed at the die cutting edges from contacting with the positive and negative electrode lugs, capable of improving the safety performance of the lithium battery, low in manufacturing cost and convenient to popularize and apply.
Description
Technical Field
The utility model relates to a lithium cell lamination belongs to lithium cell technical field.
Background
When the laminated battery of the existing lithium battery is produced, the coating machine coats the slurry on the foil, a certain amount of blank areas can be reserved without coating, the blank areas serve as current conduction parts of the pole pieces, the pole pieces are formed by baking and rolling through double-sided coating, the redundant parts of the blank areas of the foil need to be cut off through the automatic hardware die cutting machine after the pole pieces are rolled and cut, and only one part of the pole pieces serving as lugs of the pole pieces is reserved at a fixed position. In the process of die cutting of the metal foil, the coating on the edge of a pole piece is poor in bonding property and even falls off to form fine material wires, the diaphragm in the traditional lamination process moves back and forth from left to right along the pole piece, the diaphragm is in an open state in the up-down direction, and the material wires formed on the die cutting edge easily cross the diaphragm to be in contact with positive and negative electrode lugs to cause short circuit of a battery and even fire explosion; there is a great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect with not enough, provide a simple structure, reasonable in design, convenient to use's lithium cell lamination.
In order to achieve the above object, the utility model adopts the following technical scheme: the lithium battery comprises a diaphragm, a positive tab, a positive plate body, a negative tab and a negative plate body; the positive plate bodies and the negative plate bodies are stacked in a staggered mode; the diaphragm is arranged between the positive plate body and the negative plate body in a penetrating mode; the open ends of the positive plate body and the negative plate body are respectively provided with a positive tab and a negative tab; the positive electrode lug and the negative electrode lug are positioned on two different sides.
Preferably, the separator is continuously inserted between the positive electrode plate body and the negative electrode plate body, and the positive electrode plate body and the negative electrode plate body are completely separated by the separator.
Preferably, the length and width of each layer of the diaphragm are greater than those of the negative electrode plate body, and the length and width of the negative electrode plate body are greater than those of the positive electrode plate body.
Preferably, the size of each positive plate body is the same, and the size of each negative plate body 5 is the same.
Preferably, the size of each of the separators is the same.
After the structure is adopted, the utility model discloses beneficial effect does: a lithium cell lamination, realize that the diaphragm upper and lower direction is sealed, stop the contact of the material silk that the cross cutting edge formed and positive and negative pole ear, promote the security performance of lithium cell, and realize simple and convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention;
description of reference numerals:
the lithium battery comprises a diaphragm 1, a positive tab 2, a positive plate body 3, a negative tab 4 and a negative plate body 5.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment includes a separator 1, a positive tab 2, a positive tab body 3, a negative tab 4, and a negative tab body 5; the positive plate bodies 3 and the negative plate bodies 5 are stacked in a staggered mode; the diaphragm 1 is arranged between the positive plate body 3 and the negative plate body 5 in a penetrating mode; the open ends of the positive plate body 3 and the negative plate body 5 are respectively provided with a positive tab 2 and a negative tab 4; the positive electrode tab 2 and the negative electrode tab 4 are arranged on two different sides. The length and width of each layer of diaphragm 1 are both larger than the length and width of the negative plate body 5, and the length and width of the negative plate body 5 are both larger than the length and width of the positive plate body 3. The size of each positive plate body 3 is the same, and the size of each negative plate body 5 is the same. The size of each layer of the membrane 1 is the same.
The diaphragm 1 is continuously arranged between the positive plate body 3 and the negative plate body 5 in a penetrating mode, and the positive plate body 3 and the negative plate body 5 are completely separated through the diaphragm 1.
Principle of this embodiment: the diaphragm operation mode is along pole piece up-and-down direction reciprocating motion during the lamination, and positive negative pole ear is in different both sides when piling up, realizes that the diaphragm is sealed from top to bottom, prevents the contact of the material silk that the cross cutting edge formed and positive negative pole ear, promotes the security performance of lithium cell, and realizes simple and conveniently.
This embodiment's a lithium cell lamination, simple structure, convenient operation, nimble stability stops the contact of the material silk that the cross cutting edge formed and positive and negative pole ear, promotes the security performance of lithium cell, and the cost of manufacture is low, and the facilitate promotion is used.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. A lithium battery lamination structure comprises a diaphragm, a positive tab, a positive plate body, a negative tab and a negative plate body; the method is characterized in that: the positive plate bodies and the negative plate bodies are stacked in a staggered mode; the diaphragm is arranged between the positive plate body and the negative plate body in a penetrating mode; the open ends of the positive plate body and the negative plate body are respectively provided with a positive tab and a negative tab; the positive electrode lug and the negative electrode lug are positioned on two different sides; the diaphragm continuously penetrates between the positive plate body and the negative plate body, and the positive plate body and the negative plate body are completely separated through the diaphragm.
2. The lithium battery pack lamination as claimed in claim 1, wherein: the length and width of each layer of diaphragm are larger than those of the negative plate body, and the length and width of the negative plate body are larger than those of the positive plate body.
3. The lithium battery pack lamination as claimed in claim 1, wherein: the positive plates are the same in body size, and the negative plates are the same in body size.
4. The lithium battery pack lamination as claimed in claim 1, wherein: the size of each layer of diaphragm is the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920638733.6U CN210040444U (en) | 2019-05-06 | 2019-05-06 | Lithium battery lamination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920638733.6U CN210040444U (en) | 2019-05-06 | 2019-05-06 | Lithium battery lamination structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210040444U true CN210040444U (en) | 2020-02-07 |
Family
ID=69363629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920638733.6U Expired - Fee Related CN210040444U (en) | 2019-05-06 | 2019-05-06 | Lithium battery lamination structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210040444U (en) |
-
2019
- 2019-05-06 CN CN201920638733.6U patent/CN210040444U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201118 Address after: 337000 3rd floor, economic and trade building, Yuejin Village, Anyuan Town, Anyuan District, Pingxiang City, Jiangxi Province Patentee after: Jiangxi Ningyu lithium battery manufacturing Co., Ltd Address before: Room 1209, 12 / F, Anyuan business center, Anyuan District, Pingxiang City, Jiangxi Province Patentee before: Pingxiang Qing'an lithium sulfur Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20210506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |