CN205319256U - Battery rubberizing structure and battery - Google Patents
Battery rubberizing structure and battery Download PDFInfo
- Publication number
- CN205319256U CN205319256U CN201520721745.7U CN201520721745U CN205319256U CN 205319256 U CN205319256 U CN 205319256U CN 201520721745 U CN201520721745 U CN 201520721745U CN 205319256 U CN205319256 U CN 205319256U
- Authority
- CN
- China
- Prior art keywords
- battery
- stop adhesive
- core
- gluing structure
- utility
- 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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Links
- 239000000853 adhesive Substances 0.000 claims description 45
- 230000001070 adhesive effect Effects 0.000 claims description 45
- 238000004026 adhesive bonding Methods 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 5
- 229910001416 lithium ion Inorganic materials 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000011888 foil Substances 0.000 abstract description 6
- 239000003292 glue Substances 0.000 abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000005030 aluminium foil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
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- Secondary Cells (AREA)
Abstract
The utility model discloses a battery rubberizing structure, the battery includes the book core of being convoluteed and by positive plate, negative pole piece and diaphragm, the rubberizing structure is including being located respectively the first termination at the both ends of book core is glued and second termination glue, first termination glue with the second terminate to glue paste in produced fracture department is decided to positive plate, negative pole piece and diaphragm. A battery, includes battery rubberizing structure. The utility model discloses the percentage elongation of anodal foil can be reduced, and then the probability of anode aluminum foil breaking occur is reduced.
Description
Technical field
This utility model relates to battery, particularly a kind of battery gluing structure and have the battery of this gluing structure.
Background technology
Cylindrical lithium ion battery is elected as power resources by increasing automobile factory. 18650 batteries are big in the application of difference in the application and conventional 3C Product of power direction, it is desirable to battery has the cycle life of more than 1000 weeks. Cylindrical battery adopts the structure of winding, after positive plate, negative plate and barrier film complete winding, adhesive tape can be adopted core to be wrapped up, and the core formed after ensureing winding will not be loose, and internal structure will not change, and this adhesive tape is we term it stop adhesive. In order to ensure that core is not loose when stop adhesive is pasted, it is usually and core entirety is wrapped up. As it is shown in figure 1, after core 1 formed by positive plate, negative plate and membrane winding completes winding, positive/negative plate and barrier film severing, produce breaking part 3. Stop adhesive 2 pastes breaking part 3, it is ensured that core is not easily loose in following process and use procedure, thus ensureing the stability of structure. The width of general stop adhesive 2 and the height of core 1 are close, just core entirety parcel.
Anode current collector of lithium ion battery is aluminium foil, and in charging process, negative pole graphite can expand, thus positive pole is produced extruding, causes that positive pole length is continuously increased, and when exceeding the elongation percentage of foil, foil ruptures. Conventional 3C Product cycle-index is few, and positive pole aluminium foil occurs the probability ruptured low, and power product requires cycle life of a specified duration, occurs the probability of disconnected paper tinsel to increase.
After core entirety is wrapped up by traditional termination sticker method, although ensure that core stability of structure in cyclic process, but due to by tighter for core parcel, the constraint of battery core is big, so that negative pole expands the extruding to aluminium foil more greatly, the length of aluminium foil changes more greatly, and aluminium foil is more easy to and ruptures.
Utility model content
Main purpose of the present utility model is in that to overcome the deficiencies in the prior art, it is provided that a kind of battery gluing structure and have the battery of this gluing structure, reduces the elongation percentage of positive pole foil, reduces positive pole aluminium foil and the probability of fracture occurs.
For achieving the above object, this utility model is by the following technical solutions:
A kind of battery gluing structure, described battery includes core formed by positive plate, negative plate and membrane winding, described gluing structure includes the first stop adhesive and the second stop adhesive that lay respectively at the two ends of described core, described first stop adhesive and described second stop adhesive and is affixed on breaking part produced by described positive plate, negative plate and barrier film severing.
Further:
The material of described first stop adhesive and described second stop adhesive is PP, PET or polyimides.
The thickness of described first stop adhesive and described second stop adhesive is 20～100 μm.
The 1/12～1/3 of the height that width is described core of described first stop adhesive and described second stop adhesive.
The diameter of described core is 16～19mm, is highly 58～62mm, and the width of described first stop adhesive and described second stop adhesive is 8～20mm.
A kind of battery, including described battery gluing structure.
Further, described battery is cylindrical lithium ion battery.
The beneficial effects of the utility model:
First, reduce the elongation percentage of both positive and negative polarity, reduce aluminium foil and the risk of fracture occurs.
Second, it is possible to decrease the core damage brought during core winding into shell. It is be attached to the two ends of core owing to this utility model terminates sticker method, is effectively protected the upper and lower of core, thus the risk that core is impaired when entering shell is substantially reduced.
3rd, that can save stop adhesive makes consumption.
Accompanying drawing explanation
Fig. 1 is traditional termination sticker method schematic diagram;
Fig. 2 is the battery gluing structure schematic diagram of this utility model embodiment;
Fig. 3 a is the graph of a relation of circulating battery number of times and the positive pole elongation percentage adopting tradition gluing structure;
Fig. 3 b is the graph of a relation of the circulating battery number of times of this utility model embodiment and positive pole elongation percentage.
Detailed description of the invention
Hereinafter embodiment of the present utility model is elaborated. It is emphasized that the description below is merely exemplary, rather than in order to limit scope of the present utility model and application thereof.
Consult Fig. 2, in one embodiment, a kind of battery gluing structure, described battery includes core 1 formed by positive plate, negative plate and membrane winding, described gluing structure includes the first stop adhesive 4 and the second stop adhesive 5 laying respectively at the two ends of described core 1, and described first stop adhesive 4 and described second stop adhesive 5 are affixed on breaking part 2 produced by described positive plate, negative plate and barrier film severing. The two ends that stop adhesive is arranged in core are respectively arranged with one (being illustrated in figure 2 the top and bottom of core), first can ensure that core is not easily loose, secondly can protect the two ends of core so that it is be not easily susceptible to damage when entering shell. Further, additionally it is possible to effectively reduce positive pole aluminium foil elongation percentage.
In certain embodiments, the material of described first stop adhesive 4 and described second stop adhesive 5 is PP, PET or polyimides.
In a preferred embodiment, the thickness of described first stop adhesive 4 and described second stop adhesive 5 is 20～100 μm.
In a preferred embodiment, the 1/12～1/3 of the height that width is described core 1 of described first stop adhesive 4 and described second stop adhesive 5.
In a preferred embodiment, the diameter of described core 1 is 16～19mm, is highly 58～62mm, and the width of described first stop adhesive 4 and described second stop adhesive 5 is 5～20mm.
In one embodiment, a kind of battery, it can include the battery gluing structure of aforementioned any embodiment. Described battery can be cylindrical lithium ion battery.
This utility model embodiment changes the patch method of existing stop adhesive, and two stop adhesives are attached to the two ends of core respectively, it is possible to the core damage brought when reducing core winding into shell, that saves stop adhesive makes consumption simultaneously. Further, compared with existing gluing structure, this utility model embodiment can effectively reduce positive pole aluminium foil elongation percentage, thus reducing aluminium foil the risk of fracture occurs. As shown in Figure 3 a and Figure 3 b shows, when circulating battery to 50 time and 100 times, dissect existing patch method and the battery of this utility model patch method respectively, measured positive plate length, calculate foil elongation percentage.From Fig. 3 a and Fig. 3 b it will be seen that under using same circulating battery number of times situation, positive pole elongation percentage of the present utility model reduces substantially, thus significantly reducing the risk of the disconnected paper tinsel of positive pole.
Above content is to combine concrete/preferred embodiment further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations. For this utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; these embodiments having described that can also be made some replacements or modification by it, and these substitute or variant all should be considered as belonging to protection domain of the present utility model.
Claims (7)
1. a battery gluing structure, described battery includes core formed by positive plate, negative plate and membrane winding, it is characterized in that, described gluing structure includes the first stop adhesive and the second stop adhesive that lay respectively at the two ends of described core, described first stop adhesive and described second stop adhesive and is affixed on breaking part produced by described positive plate, negative plate and barrier film severing.
2. battery gluing structure as claimed in claim 1, it is characterised in that the material of described first stop adhesive and described second stop adhesive is PP, PET or polyimides.
3. battery gluing structure as claimed in claim 1 or 2, it is characterised in that the thickness of described first stop adhesive and described second stop adhesive is 20～100 μm.
4. battery gluing structure as claimed in claim 1 or 2, it is characterised in that the 1/12～1/3 of the height that width is described core of described first stop adhesive and described second stop adhesive.
5. battery gluing structure as claimed in claim 1 or 2, it is characterised in that the diameter of described core is 16～19mm, is highly 58～62mm, and the width of described first stop adhesive and described second stop adhesive is 5～20mm.
6. a battery, it is characterised in that include the battery gluing structure as described in any one of claim 1-5.
7. battery as claimed in claim 6, it is characterised in that described battery is cylindrical lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721745.7U CN205319256U (en) | 2015-09-17 | 2015-09-17 | Battery rubberizing structure and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520721745.7U CN205319256U (en) | 2015-09-17 | 2015-09-17 | Battery rubberizing structure and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205319256U true CN205319256U (en) | 2016-06-15 |
Family
ID=56188160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520721745.7U Active CN205319256U (en) | 2015-09-17 | 2015-09-17 | Battery rubberizing structure and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205319256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871765A (en) * | 2021-09-26 | 2021-12-31 | 贵阳比耐新能源科技有限公司 | Cylindrical battery and manufacturing method thereof |
-
2015
- 2015-09-17 CN CN201520721745.7U patent/CN205319256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871765A (en) * | 2021-09-26 | 2021-12-31 | 贵阳比耐新能源科技有限公司 | Cylindrical battery and manufacturing method thereof |
| CN113871765B (en) * | 2021-09-26 | 2024-02-23 | 贵阳比耐新能源科技有限公司 | Cylindrical battery and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170608 Address after: 518119 Beek Industrial Zone, Kwai Chung street, Dapeng New District, Guangdong, Shenzhen Patentee after: SHENZHEN BAK POWER BATTERY Co.,Ltd. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518119 Co-patentee before: SHENZHEN BAK BATTERY Co.,Ltd. Patentee before: SHENZHEN BAK POWER BATTERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191022 Granted publication date: 20160615 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221022 Granted publication date: 20160615 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221022 Granted publication date: 20160615 |
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| PP01 | Preservation of patent right |