CN207199728U - Laminated battery plate and battery core - Google Patents
Laminated battery plate and battery core Download PDFInfo
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- CN207199728U CN207199728U CN201720990186.9U CN201720990186U CN207199728U CN 207199728 U CN207199728 U CN 207199728U CN 201720990186 U CN201720990186 U CN 201720990186U CN 207199728 U CN207199728 U CN 207199728U
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- plate
- barrier film
- battery core
- negative
- positive plate
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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
It the utility model is related to laminated battery plate and battery core.Laminated battery plate includes housing and the battery core being arranged in housing, battery core includes positive plate, negative plate and separates positive plate, the barrier film of negative plate, barrier film includes folding folded section and the cladding section for positive plate and negative plate to be coated togather for separating positive plate and negative plate in zigzag, and barrier film cladding section is in semi-surrounding structure.Barrier film folded section in zigzag fold by positive plate and negative plate it is completely separated after, positive plate and negative plate are coated togather using barrier film cladding section, make the folded section of positive plate, negative plate and barrier film composition there is stable annexation, effectively avoid battery core following process process from causing the dislocation of battery core pole piece due to the extraneous factor such as touching by mistake, and then prevent due to the battery short circuit caused by electrode slice misplaces the problems such as.
Description
Technical field
It the utility model is related to laminated battery plate and battery core.
Background technology
Lithium ion battery is widely used because having higher energy density and wider operating temperature range, lithium
The security of ion battery turns into the technical barrier of limiting lithium ion cell large-scale application.Current commercialized lithium ion battery
Lamination is broadly divided into two kinds of winding and lamination, and takeup type limits the energy of cell because being limited by thickness, stacked
Structure is used widely because of the shortcomings that overcoming takeup type structure.
Authorization Notice No. is CN202050025U, and authorized announcement date is that 2011.11.23 utility model patent file discloses
Laminated lithium battery, including positive plate, negative plate, positive pole ear, negative lug and barrier film, barrier film cross section is into continuous Z-shaped
Shape folds, and paired positive plate and negative plate are inserted in the both ends that single zigzag folds respectively, and first positive plate extroversion face is that do not have
The empty paper tinsel face of figure layer, positive plate extroversion are welded with positive pole ear on face；Tailpiece negative plate extroversion face is also not have cated empty paper tinsel
Face, negative plate extroversion are welded with negative lug on face；Left on the positive/negative plate of middle pair and do not have cated empty paper tinsel side.Should
Utility model lamination manufacturing process is simple, easy to operate, and the core regularity folded is high, and burr is few, but lamination terminates rear battery core
Moving process easily causes the dislocation of pole piece, the potential safety hazards such as short circuit be present.
Utility model content
The purpose of this utility model is to provide a kind of laminated battery plate, laggard to solve in lamination to terminate in the prior art
Battery pole piece easily misplaces during row subsequent operation, caused short circuit problem；The purpose of this utility model, which also resides in, provides above-mentioned fold
Battery core used in chip battery.
To achieve the above object, the technical scheme of laminated battery plate of the present utility model is：
The technical scheme 1 of laminated battery plate of the present utility model：Laminated battery plate, including housing and be arranged in housing
Battery core, the battery core include positive plate, negative plate and separate positive plate, the barrier film of negative plate, and the barrier film includes rolling in zigzag
Folded folded section and the cladding section for positive plate and negative plate to be coated togather for separating positive plate and negative plate, the cladding
Section is in semi-surrounding structure.Barrier film folded section in zigzag fold by positive plate and negative plate it is completely separated after, use barrier film cladding section
Positive plate and negative plate are coated togather, make the folded section of positive plate, negative plate and barrier film composition there is stable connection to close
System, effectively avoid battery core following process process from causing the dislocation of battery core pole piece due to the extraneous factor such as touching by mistake, so prevent by
Caused by being misplaced in electrode slice the problems such as battery short circuit.It is in semi-surrounding structure to coat section, can not only play the bag to folded section
Effect is covered, and with saving diaphragm material, the simple effect of making.
The technical scheme 2 of laminated battery plate of the present utility model：In the technical scheme 1 of laminated battery plate of the present utility model
On the basis of, the tail end of the cladding section is in the edge placement of folded section bottom.Barrier film cladding section original position be located at every
Film folded section tail end, the final position of barrier film cladding section are located at the edge placement of the folded section bottom of barrier film folded section, and battery core is put
The tail end for putting cladding section when on the table is in bottom, it is possible to increase coats the tail end of section and the bonding strength of folded section.
The technical scheme 3 of laminated battery plate of the present utility model：In the technical scheme 1 of laminated battery plate of the present utility model
Or on the basis of 2, the negative pole leaf length is more than positive pole leaf length, negative plate width is more than positive plate width.The length of negative plate
Spend and width is all higher than positive plate, on the one hand can prevent battery core in use because the pole piece dislocation band caused by factor such as vibrations
The safety problems such as the short circuit come；On the other hand because the performance of battery core capacity depends on whether lithium ion in positive plate fully takes off
Embedding, the size of negative plate, which is more than positive plate, can ensure that battery core plays maximum capacity.
The technical scheme 4 of laminated battery plate of the present utility model：In the technical scheme 1 of laminated battery plate of the present utility model
Or on the basis of 2, the positive plate is between two negative plates.First and the last a piece of pole that barrier film zigzag folds
Piece is negative plate, it is ensured that the lithium ion in positive plate can be completely embedded into negative plate, play the maximum capacity of battery core.
The technical scheme 5 of laminated battery plate of the present utility model：In the technical scheme 1 of laminated battery plate of the present utility model
Or on the basis of 2, the barrier film is double-surface ceramics barrier film or gluing barrier film.Positive plate, negative plate are kept completely separate by barrier film, are avoided
Dust, powder contact phenomena, battery core potential safety hazard such as short circuit caused by pole piece misplaces under working condition is reduced, improves electricity
The security of core.Ceramic powders are good heat proof materials, and pole piece can be effectively reduced because of dry linting, hair using ceramic coating membrane
Pierce and thermal runaway problem caused by short circuit；Bonding agent is logical to have bonding effect, and stationarity is preferable after drying, and is led to using gluing barrier film
Fixed pole piece, and then fixed positive/negative plate position can be played a part of by crossing following process, improve battery core hardness.
The technical scheme of battery core of the present utility model is：
The technical scheme 1 of battery core of the present utility model：Battery core, including positive plate, negative plate and separation positive plate, negative plate
Barrier film, the barrier film includes folding the folded section that separates positive plate and negative plate in zigzag and for by positive plate and negative pole
The cladding section that piece is coated togather, the cladding section is in semi-surrounding structure.Barrier film folded section is folded positive plate with bearing in zigzag
After pole piece is completely separated, positive plate and negative plate are coated togather using barrier film cladding section, make positive plate, negative plate and barrier film
The folded section of composition has stable annexation, effectively avoids battery core following process process from being caused due to the extraneous factor such as touching by mistake
The dislocation of battery core pole piece, so prevent due to electrode slice misplace caused by battery short circuit the problems such as.It is in semi-surrounding knot to coat section
Structure, the coating function to folded section can be not only played, and with saving diaphragm material, the simple effect of making.
The technical scheme 2 of battery core of the present utility model：On the basis of the technical scheme 1 of battery core of the present utility model, institute
The tail end for stating cladding section is in the edge placement of folded section bottom.The original position of barrier film cladding section is located at barrier film folded section tail
End, the final position of barrier film cladding section are located at the edge placement of the folded section bottom of barrier film folded section, and battery core is placed on workbench
The tail end that section was coated when upper is in bottom, it is possible to increase coats the tail end of section and the bonding strength of folded section.
The technical scheme 3 of battery core of the present utility model：On the basis of the technical scheme 1 or 2 of battery core of the present utility model,
The negative pole leaf length is more than positive pole leaf length, and negative plate width is more than positive plate width.The length and width of negative plate is big
In positive plate, battery core on the one hand can be prevented in use because the peace such as short circuit that the pole piece dislocation caused by factor such as vibrations is brought
Full problem；On the other hand because the performance of battery core capacity depends on the whether abundant deintercalation of lithium ion in positive plate, the chi of negative plate
The very little positive plate that is more than can ensure that battery core plays maximum capacity.
The technical scheme 4 of battery core of the present utility model：On the basis of the technical scheme 1 or 2 of battery core of the present utility model,
The positive plate is between two negative plates.First of barrier film zigzag folding is negative plate with last a piece of pole piece, can
It can be completely embedded into the lithium ion ensured in positive plate in negative plate, play the maximum capacity of battery core.
The technical scheme 5 of battery core of the present utility model：On the basis of the technical scheme 1 or 2 of battery core of the present utility model,
The barrier film is double-surface ceramics barrier film or gluing barrier film.Positive plate, negative plate are kept completely separate by barrier film, avoid dust, powder
Contact phenomena, battery core potential safety hazard such as short circuit caused by pole piece misplaces under working condition is reduced, improve the security of battery core.
Ceramic powders are good heat proof materials, using ceramic coating membrane can effectively reduce pole piece because dry linting, burr and short circuit is made
Into thermal runaway problem；Bonding agent is logical to have bonding effect, and stationarity is preferable after drying, and passes through following process using gluing barrier film
Fixed pole piece, and then fixed positive/negative plate position can be played a part of, improve battery core hardness.
Brief description of the drawings
Fig. 1 be the utility model laminated battery plate specific embodiment one in battery core lamination schematic diagram；
Fig. 2 is the structural representation of the septation of specific embodiment one of the utility model laminated battery plate；
Fig. 3 be the utility model laminated battery plate specific embodiment one in battery core structural representation；
Fig. 4 be the utility model laminated battery plate specific embodiment two in battery core lamination schematic diagram；
In Fig. 1：1- negative plates, 3- positive plates, 21- folded sections, 22- cladding sections, the corner of 201- folded sections first；
In Fig. 2：2- basement membranes, 211- ceramic coatings；
In Fig. 3：4- negative lugs, 5- positive pole ears；
In Fig. 4：101- negative plates, 301- positive plates, 21- folded sections, 22- cladding sections, the corner of 201- folded sections first.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment one of laminated battery plate of the present utility model, as shown in Figure 1 to Figure 3, including housing and it is arranged on
Battery core in housing, battery core include positive plate 3, negative plate 1 and separate positive plate 3, the barrier film of negative plate 1, and it is in Z-shaped that barrier film, which includes,
Shape folds folded section 21 and the cladding section 22 for positive plate and negative plate to be coated togather for separating positive plate and negative plate,
It is in semi-surrounding structure to coat section 22.Barrier film is folded into after folded section 21 separates positive plate 3 and negative plate 1 in zigzag, is used
Positive plate 3 and negative plate 1 are coated togather by barrier film cladding section 22, make the folded section of positive plate 3, negative plate 1 and barrier film composition
21 have stable annexations, effectively avoid battery core following process process from causing battery core pole piece due to the extraneous factor such as touching by mistake
Dislocation, so prevent due to pole piece misplace caused by battery short circuit the problems such as.It is in semi-surrounding structure to coat section 22, not only can be with
The coating function to folded section 21 is played, and with saving diaphragm material, the simple effect of making.
As shown in figure 1, the tail end of cladding section 22 is in the edge placement of the bottom of folded section 21.Barrier film coats the starting of section 22
Position is located at the tail end of barrier film folded section 21, and the tail end of barrier film folded section 21 extends to form cladding section 22, and cladding section 22 terminates at barrier film
The first corner of folded section 201 of folded section 21.On the one hand the attended operation of barrier film cladding section 22 and folded section 21 can be saved,
Improve the tail end and the bonding strength of folded section 21 of cladding section 22；On the other hand, one section of barrier film in folded section 21 also functions to
Coating function, the use of the diaphragm material of effective reduction, saves diaphragm material.The length and width of negative plate 1 is all higher than just
Pole piece 3, battery core on the one hand can be prevented in use because the safety such as short circuit that the pole piece dislocation caused by factor such as vibrations is brought
Problem；On the other hand because the performance of battery core capacity depends on the whether abundant deintercalation of lithium ion in positive plate, the size of negative plate 1
It can ensure that battery core plays maximum capacity more than positive plate 3.First of barrier film zigzag folding is negative with last a piece of pole piece
Pole piece 1, positive plate 3 are between two negative plates 1, it is ensured that and the lithium ion in positive plate can be completely embedded into negative plate,
Play the maximum capacity of battery core.
As shown in Fig. 2 barrier film is double-surface ceramics every including basement membrane 2 and the ceramic coating 211 in the two sides of basement membrane 2.Ceramics
Powder is good heat proof material, using ceramic coating membrane can effectively reduce pole piece because dry linting, burr and caused by short circuit
Thermal runaway problem.Positive plate 3, negative plate 1 are kept completely separate by barrier film, avoid dust, powder contact phenomena, reduce working condition
Lower battery core potential safety hazard such as short circuit caused by pole piece misplaces, improve the security of battery core.
The structural representation of battery core as shown in Figure 3, when the folding for completing positive plate 3, negative plate 1 and barrier film and coat it
Afterwards, the positive pole ear 5 being connected with positive plate 3 is connected together by supersonic welding, the negative lug 4 that will be connected with negative plate 1
It is connected together by supersonic welding, ensures the connection reliability between lug.Then battery core is carried out including protection circuit and shell
The following process of body etc., complete the assembling of battery.
The specific embodiment two of laminated battery plate of the present utility model, as shown in figure 4, the structure of the battery in the present embodiment
With differing only in for above-mentioned specific embodiment one：The length and width of positive plate 301 and negative plate 101 is equal.
The embodiment of battery core of the present utility model, the structure of the battery core and institute in the specific embodiment of above-mentioned laminated battery plate
The core strueture stated is identical, repeats no more.
In the other embodiment of the utility model laminated battery plate and battery core, barrier film can be gluing barrier film, using gluing
Barrier film can play a part of fixed pole piece, and then fixed positive/negative plate position by following process, improve battery core hardness.Barrier film
Or common lithium battery diaphragm.
Claims (10)
1. laminated battery plate, including housing and the battery core that is arranged in housing, the battery core include positive plate, negative plate and separation
The barrier film of positive plate, negative plate, it is characterized in that, the barrier film includes folding the folding for separating positive plate and negative plate in zigzag
Section and the cladding section for positive plate and negative plate to be coated togather, the cladding section is in semi-surrounding structure.
2. laminated battery plate according to claim 1, it is characterized in that, the tail end of the cladding section is in barrier film folded section bottom
The edge placement of layer.
3. laminated battery plate according to claim 1 or 2, it is characterized in that, the negative pole leaf length is more than positive pole leaf length,
Negative plate width is more than positive plate width.
4. laminated battery plate according to claim 1 or 2, it is characterized in that, the positive plate is between two negative plates.
5. laminated battery plate according to claim 1 or 2, it is characterized in that, the barrier film is double-surface ceramics barrier film or gluing
Barrier film.
6. battery core, including positive plate, negative plate and separation positive plate, the barrier film of negative plate, it is characterized in that, the barrier film is including being in
Zigzag folds folded section and the cladding section for positive plate and negative plate to be coated togather for separating positive plate and negative plate,
The cladding section is in semi-surrounding structure.
7. battery core according to claim 6, it is characterized in that, the tail end of the cladding section is in the side of barrier film folded section bottom
Along position.
8. the battery core according to claim 6 or 7, it is characterized in that, the negative pole leaf length is more than positive pole leaf length, negative plate
Width is more than positive plate width.
9. the battery core according to claim 6 or 7, it is characterized in that, the positive plate is between two negative plates.
10. the battery core according to claim 6 or 7, it is characterized in that, the barrier film is double-surface ceramics barrier film or gluing barrier film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990186.9U CN207199728U (en) | 2017-08-09 | 2017-08-09 | Laminated battery plate and battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990186.9U CN207199728U (en) | 2017-08-09 | 2017-08-09 | Laminated battery plate and battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207199728U true CN207199728U (en) | 2018-04-06 |
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ID=61796637
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720990186.9U Active CN207199728U (en) | 2017-08-09 | 2017-08-09 | Laminated battery plate and battery core |
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| CN (1) | CN207199728U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346778A (en) * | 2018-10-08 | 2019-02-15 | 东莞阿李自动化股份有限公司 | A kind of manufacturing method of lamination type electric core |
| CN111403820A (en) * | 2020-03-27 | 2020-07-10 | 湖北亿纬动力有限公司 | Core pack and manufacturing method thereof, single battery and manufacturing method and module thereof |
-
2017
- 2017-08-09 CN CN201720990186.9U patent/CN207199728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346778A (en) * | 2018-10-08 | 2019-02-15 | 东莞阿李自动化股份有限公司 | A kind of manufacturing method of lamination type electric core |
| CN111403820A (en) * | 2020-03-27 | 2020-07-10 | 湖北亿纬动力有限公司 | Core pack and manufacturing method thereof, single battery and manufacturing method and module thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 454191 Industrial Cluster Area, Jiaozuo City, Henan Province, Standardized Workshop Area on the North Side of Xinyuan Road, West Park Patentee after: Multi-fluorine New Energy Technology Co., Ltd. Address before: 454191 Henan Jiaozuo industrial agglomeration area, West Park, Xinyuan Road, north side of the standardization workshop. Patentee before: Duofuduo (Jiaozuo) Amperex Technology Limited |
|
| CP03 | Change of name, title or address |