CN110212250A - A kind of lithium battery electric core - Google Patents
A kind of lithium battery electric core Download PDFInfo
- Publication number
- CN110212250A CN110212250A CN201910473647.9A CN201910473647A CN110212250A CN 110212250 A CN110212250 A CN 110212250A CN 201910473647 A CN201910473647 A CN 201910473647A CN 110212250 A CN110212250 A CN 110212250A
- Authority
- CN
- China
- Prior art keywords
- pole piece
- complex body
- lithium battery
- electric core
- battery electric
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention provides a kind of lithium battery electric core, belong to technical field of lithium batteries, specific technical solution is as follows: a kind of lithium battery electric core, including the pole piece complex body being stacked, the pole piece complex body includes positive plate, negative electrode tab and diaphragm, the diaphragm is stained at least one tree lace or at least one glue surface between the positive plate and negative electrode tab on the front end face and/or rear end face of the pole piece complex body being stacked.The present invention fetters pole piece complex body end diaphragm by netted tree lace comprehensively, increases diaphragm and fetters area, diaphragm turns down phenomenon when preventing pole piece complex body from entering putamina；Electrolyte recoil and end are hit diaphragm and are turned down when preventing from falling, and can effectively avoid the contact of battery core positive/negative plate or negative electrode tab and positive plate pole powder exposure risk；Glue is bonded with stronger adaptability, can be compatible with different model battery core, realizes flexible manufacturing.
Description
Technical field
The invention belongs to technical field of lithium batteries more particularly to a kind of lithium battery electric cores.
Background technique
With the development in market, portable electronic product the security performance of lithium battery is required it is higher and higher, in addition for
Lithium battery makes factory, and product flexibilityization manufacture will be industry development trend.
Currently, the improvement of lithium battery industry falls dead methods mainly by encapsulated to battery core progress in battery core end diaphragm
Constraint, this method have the following problems:
1. encapsulated limited area (together, tail portion is together on usual head), end diaphragm is easily turned down when battery core enters shell；
2. needing the adhesive tape according to different model selection different lengths, complexity of remodeling；
3. battery falls, since the recoil of shell electrolyte inside and end are hit, battery core end diaphragm is easily turned down in shell, thus
Increase positive/negative plate contact or negative electrode tab and positive plate pole powder exposure risk, causes battery pressure drop bad or short circuit phenomenon occurs.
Summary of the invention
It is an object of the invention to improve the problem of lithium battery electric core falls failure, flexibility manufacture is realized, the present invention mentions
For a kind of lithium battery electric core.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of lithium battery electric core, including the pole piece complex body being stacked, the pole piece complex body includes positive plate, cathode
Piece and diaphragm, the diaphragm is between the positive plate and negative electrode tab, the front end face of the pole piece complex body being stacked
And/or at least one tree lace or at least one glue surface are stained on rear end face.
Further, the shape of the glue surface is arbitrary shape, and the shape of the tree lace distribution is arbitrary shape.
Further, at least one described glue surface connects the pole piece complex body of all stackings.
Further, the pole piece complex body for connecting all stackings is pasted in all glue surface combinations.
Further, the pole piece complex body for connecting all stackings is pasted in all tree lace combinations.
Further, at least one tree lace connects the pole piece complex body of all stackings.
Preferably, all tree laces are in ' wave '.
Preferably, the tree lace is two, and two tree laces are interlaced to be distributed and be symmetrical set to form netted glue
Line.
Further, the height of the tree lace wave crest and trough is equal to the thickness of the lithium battery electric core.
Preferably, the tree lace is several straight lines being distributed vertically, and several straight lines are uniformly arranged in the layer
The front end face and rear end face of folded pole piece complex body.
Further, the length of several straight lines is equal to the thickness of the lithium battery electric core.
Preferably, the mode being stacked is that takeup type is stacked, ' Z ' font is stacked or bag making type layer
Folded setting.
Further, the lithium battery electric core further includes battery core putamina, anode ear and negative electrode lug, and the anode ear is fixed to be connected
It connects on the positive plate, the negative electrode lug is fixedly connected in the negative electrode tab, and the battery core putamina is wrapped in the stacking
Pole piece complex body outer surface.
Preferably, the battery core putamina is plastic-aluminum putamina, steel shell or aluminum hull.
Beneficial effects of the present invention:
1. fettering battery core end diaphragm comprehensively by netted tree lace, increase diaphragm and fetter area, prevent battery core enter shell after
Film turns down phenomenon；
2. the diaphragm dispensing of battery core end, is bonded by glue, there is stronger adaptability, different model battery core can be compatible with,
Realize flexible manufacturing；
3. the diaphragm dispensing of battery core end, increase diaphragm fetter area, when preventing from falling electrolyte recoil and end hit every
Film turns down, and can effectively avoid the contact of battery core positive/negative plate or negative electrode tab and positive plate pole powder exposure risk.
Detailed description of the invention
Fig. 1: overall structure of the present invention；
The enlarged drawing of A in Fig. 2: Fig. 1；
In figure: 1, battery core, 2, pole piece complex body, 3, tree lace.
Specific embodiment
With reference to the accompanying drawing 1 and 2 and the present invention is described further by specific embodiment.
Specific embodiment one
A kind of lithium battery electric core, including the pole piece complex body 2 being stacked, the pole piece complex body 2 includes positive plate, bears
Pole piece and diaphragm, the diaphragm is between the positive plate and negative electrode tab, the rear end of the pole piece complex body 2 being stacked
Two tree laces 3 are stained on face, two tree laces 3 are in the shape of ' wave ', the interlaced distribution of two tree laces 3
And be symmetrical set and to form netted tree lace 3, the height of at least one 3 wave crest of tree lace and trough is equal to the lithium battery electric core
The diaphragm of every layer of pole piece complex body 2 is bonded together by 1 thickness, is achieved the purpose that fixed.
Further, the mode being stacked is that ' Z ' font is stacked.
Further, the lithium battery electric core further includes battery core putamina, anode ear and negative electrode lug, and the anode ear is fixed to be connected
It connects on the positive plate, the negative electrode lug is fixedly connected in the negative electrode tab, and the battery core putamina is wrapped in the stacking
Pole piece complex body 2 outer surface.Preferably, the battery core putamina is plastic-aluminum putamina.
Specific embodiment two
A kind of lithium battery electric core, including the pole piece complex body 2 being stacked, the pole piece complex body 2 includes positive plate, bears
Pole piece and diaphragm, the diaphragm is between the positive plate and negative electrode tab, the rear end of the pole piece complex body 2 being stacked
It is stained with a tree lace 3 on face, the tree lace 3 is in the shape of ' wave ', and the height of 3 wave crest of tree lace and trough is equal to described
The thickness of lithium battery electric core 1, the tree lace 3 connect the pole piece complex body 2 of all stackings, by the diaphragm of every layer of pole piece complex body 2
It is bonded together, achievees the purpose that fixed.
Further, the mode being stacked is that ' Z ' font is stacked.
Further, the lithium battery electric core further includes battery core putamina, anode ear and negative electrode lug, and the anode ear is fixed to be connected
It connects on the positive plate, the negative electrode lug is fixedly connected in the negative electrode tab, and the battery core putamina is wrapped in the stacking
Pole piece complex body 2 outer surface.Preferably, the battery core putamina is plastic-aluminum putamina.
Specific embodiment three
A kind of lithium battery electric core, including the pole piece complex body 2 being stacked, the pole piece complex body 2 includes positive plate, bears
Pole piece and diaphragm, the diaphragm is between the positive plate and negative electrode tab, the rear end of the pole piece complex body 2 being stacked
Several tree laces 3 are stained on face, several tree laces 3 are the straight line being distributed vertically, and every tree lace 3 is partially bonded in institute
On the rear end face for stating pole piece complex body 2, the pole piece complex body 2 for connecting all stackings is pasted in all combinations of tree lace 3.By every layer
The diaphragm of pole piece complex body 2 is bonded together, and is achieved the purpose that fixed.
Further, the mode being stacked is stacked for takeup type.
Further, the lithium battery electric core further includes battery core putamina, anode ear and negative electrode lug, and the anode ear is fixed to be connected
It connects on the positive plate, the negative electrode lug is fixedly connected in the negative electrode tab, and the battery core putamina is wrapped in the stacking
Pole piece complex body 2 outer surface.Preferably, the battery core putamina is steel shell.
Specific embodiment four
A kind of lithium battery electric core, including the pole piece complex body 2 being stacked, the pole piece complex body 2 includes positive plate, bears
Pole piece and diaphragm, the diaphragm is between the positive plate and negative electrode tab, the front end of the pole piece complex body 2 being stacked
Several tree laces 3 are stained on face and rear end face, several tree laces 3 are the straight line being distributed vertically, several straight lines
It is uniformly arranged the front end face and rear end face in the pole piece complex body 2 of the stacking, the length of all straight lines is equal to described
The thickness of lithium battery electric core 1.The diaphragm of every layer of pole piece complex body 2 is bonded together, is achieved the purpose that fixed.
Further, the mode being stacked is stacked for takeup type.
Further, the lithium battery electric core further includes battery core putamina, anode ear and negative electrode lug, and the anode ear is fixed to be connected
It connects on the positive plate, the negative electrode lug is fixedly connected in the negative electrode tab, and the battery core putamina is wrapped in the stacking
Pole piece complex body 2 outer surface.Preferably, the battery core putamina is plastic-aluminum putamina.
Specific embodiment five
A kind of lithium battery electric core, including the pole piece complex body 2 being stacked, the pole piece complex body 2 includes positive plate, bears
Pole piece and diaphragm, the diaphragm is between the positive plate and negative electrode tab, the front end of the pole piece complex body 2 being stacked
A rectangle glue surface is stained on face, the rectangle glue surface is arranged on the front end face of pole piece complex body 2 of the stacking, institute
The height for stating glue surface is equal to the thickness of the lithium battery electric core 1.The diaphragm of every layer of pole piece complex body 2 is bonded together, is reached
Fixed purpose.
Further, the mode being stacked is stacked for takeup type.
Further, the lithium battery electric core further includes battery core putamina, anode ear and negative electrode lug, and the anode ear is fixed to be connected
It connects on the positive plate, the negative electrode lug is fixedly connected in the negative electrode tab, and the battery core putamina is wrapped in the stacking
Pole piece complex body 2 outer surface.Preferably, the battery core putamina is plastic-aluminum putamina.
Specific embodiment six
A kind of lithium battery electric core, including the pole piece complex body 2 being stacked, the pole piece complex body 2 includes positive plate, bears
Pole piece and diaphragm, the diaphragm is between the positive plate and negative electrode tab, the rear end of the pole piece complex body 2 being stacked
Several square glue surfaces are stained on face, each square glue surface is partially bonded on the rear end face of the pole piece complex body 2,
The pole piece complex body 2 for connecting all stackings is pasted in all square glue surface combinations.The diaphragm of every layer of pole piece complex body 2 is glued
Knot together, achievees the purpose that fixed.
Further, the mode being stacked is stacked for takeup type.
Further, the lithium battery electric core further includes battery core putamina, anode ear and negative electrode lug, and the anode ear is fixed to be connected
It connects on the positive plate, the negative electrode lug is fixedly connected in the negative electrode tab, and the battery core putamina is wrapped in the stacking
Pole piece complex body 2 outer surface.Preferably, the battery core putamina is plastic-aluminum putamina.
Claims (10)
1. a kind of lithium battery electric core, including the pole piece complex body (2) being stacked, the pole piece complex body (2) include positive plate,
Negative electrode tab and diaphragm, the diaphragm is between the positive plate and negative electrode tab, it is characterised in that: the pole piece being stacked
At least one tree lace (3) or at least one glue surface are stained on the front end face and/or rear end face of complex (2).
2. a kind of lithium battery electric core according to claim 1, it is characterised in that: the shape of the glue surface is arbitrary shape,
The shape of tree lace (3) distribution is arbitrary shape.
3. a kind of lithium battery electric core according to claim 1, it is characterised in that: connection institute is pasted in all glue surface combinations
There is the pole piece complex body (2) of stacking.
4. a kind of lithium battery electric core according to claim 1, it is characterised in that: at least one described glue surface connects all layers
Folded pole piece complex body (2).
5. a kind of lithium battery electric core according to claim 1, it is characterised in that: all tree lace (3) combinations, which are pasted, to be connected
Connect the pole piece complex body (2) of all stackings.
6. a kind of lithium battery electric core according to claim 1, it is characterised in that: at least one tree lace (3) connects institute
There is the pole piece complex body (2) of stacking.
7. a kind of lithium battery electric core according to claim 1, it is characterised in that: all tree laces (3) are in ' wave
Line '.
8. a kind of lithium battery electric core according to claim 7, it is characterised in that: the tree lace (3) is two, described two
Tree lace (3) is interlaced to be distributed and is symmetrical set to form netted tree lace.
9. a kind of lithium battery electric core according to claim 7 or 8, it is characterised in that: tree lace (3) wave crest and trough
Height is equal to the thickness of the lithium battery electric core (1).
10. a kind of lithium battery electric core according to claim 1, it is characterised in that: the pole piece complex body (2) is stacked
Mode be takeup type is stacked, ' Z ' font is stacked or bag making type is stacked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910473647.9A CN110212250A (en) | 2019-06-01 | 2019-06-01 | A kind of lithium battery electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910473647.9A CN110212250A (en) | 2019-06-01 | 2019-06-01 | A kind of lithium battery electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110212250A true CN110212250A (en) | 2019-09-06 |
Family
ID=67790231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910473647.9A Pending CN110212250A (en) | 2019-06-01 | 2019-06-01 | A kind of lithium battery electric core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110212250A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285110A (en) * | 2021-03-24 | 2021-08-20 | 中航锂电（洛阳）有限公司 | Battery, gluing method and manufacturing method of battery core |
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| CN108832192A (en) * | 2018-06-21 | 2018-11-16 | 桑顿新能源科技有限公司 | A method of improving lithium battery security performance |
| CN109256580A (en) * | 2018-09-28 | 2019-01-22 | 桑顿新能源科技有限公司 | A kind of soft bag lithium ionic cell and preparation method thereof improving heavy impact performance |
| CN109830638A (en) * | 2019-01-16 | 2019-05-31 | 山东聚信新能源科技有限公司 | A kind of high rigidity soft package lithium ion cell polar piece and core preparation method |
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2019
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203690386U (en) * | 2014-01-17 | 2014-07-02 | 东莞新能源科技有限公司 | Cell and electrochemical device |
| WO2016195087A1 (en) * | 2015-06-04 | 2016-12-08 | 日本電気株式会社 | Film-clad cell |
| CN106654348A (en) * | 2017-02-20 | 2017-05-10 | 南通耐维特电源有限公司 | Lithium battery |
| CN107204415A (en) * | 2017-07-11 | 2017-09-26 | 力信（江苏）能源科技有限责任公司 | A kind of high temperature safe type battery core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285110A (en) * | 2021-03-24 | 2021-08-20 | 中航锂电（洛阳）有限公司 | Battery, gluing method and manufacturing method of battery core |
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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: No. 209, Zhufeng Avenue, Jingan Town, Doumen District, Doumen District, Zhuhai City, Guangdong Province Applicant after: Zhuhai Guanyu Battery Co.,Ltd. Address before: No. 209, Zhufeng Avenue, Jingan Town, Doumen District, Doumen District, Zhuhai City, Guangdong Province Applicant before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190906 |