CN208284580U - A kind of anti-deformation soft-package battery core - Google Patents
A kind of anti-deformation soft-package battery core Download PDFInfo
- Publication number
- CN208284580U CN208284580U CN201820717719.0U CN201820717719U CN208284580U CN 208284580 U CN208284580 U CN 208284580U CN 201820717719 U CN201820717719 U CN 201820717719U CN 208284580 U CN208284580 U CN 208284580U
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- China
- Prior art keywords
- battery core
- negative electrode
- diaphragm
- winding
- soft
- 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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- 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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- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of anti-deformation soft-package battery core, the soft-package battery sheathing material is aluminum-plastic composite membrane, battery core is wound to be placed in the aluminum-plastic composite membrane, the winding battery core includes multiple positive plates, multiple negative electrode tabs and multiple diaphragms, wherein, the winding battery core is wound according to the order of diaphragm, positive plate, diaphragm, negative electrode tab, and the winding battery core further includes several insulating trips being placed between the positive plate, negative electrode tab and diaphragm；The insulating trip with a thickness of 10~20 μm.The utility model, without significantly influencing or changing, does not have to carry out Important Adjustment to production line or controlling of production process for existing production technology；It is at low cost, volume production easy to accomplish, after roll-forming, it extracts the insulating trip out, then forms corresponding gap, the gap is for eliminating the dilatancy that battery core is generated in use process, the problem of can effectively improve battery bulging, extends the service life of battery, thus brings huge economic benefit.
Description
Technical field
The utility model relates to soft-package battery technical field more particularly to a kind of anti-deformation soft-package battery core.
Background technique
In new-energy automobile industry widely used power lithium battery cell system due to its shell natural characteristic, in addition battery
The heat generated in discharge process is easy so that battery expands deformation in use for some time, and metaboly usually shows
For cell thickness increase, battery surface bulging plays packet, the mould group being made of numerous battery cores in use for some time, if each electricity
Different degrees of expansion occurs for core, will lead to battery performance after accumulation then numerous battery cores deform and declines, the lost of life,
The even security risks such as internal short-circuit.Specific deformation genesis mechanism are as follows: polymer lithium ion battery core is using plastic-aluminum combined
The packing technique of film, when generating gas due to the generation of abnormal chemical reactions inside battery, the positive and negative pole material of core
It will be inflated between diaphragm, the pressure of generation distorts core, and shell can be jacked up, and battery bulging (has slight bulging
With two kinds of situations of serious bulging), no matter and appearance, the service performance (capacity, cycle life, multiplying power etc.) of battery can send out
Raw serious failure, causes battery that cannot use.Existing soft pack cell can be often deformed after above-mentioned flatulence occurs
As shown in Fig. 2.
Utility model content
Based on the above the deficiencies in the prior art, the technical issues of the utility model is solved, is to provide a kind of convenient for life
It produces, anti-deformation soft-package battery core economic and practical, that the dilatancy that battery core is generated in use process can be eliminated.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions: the utility model provides
A kind of anti-deformation soft-package battery core, the soft-package battery sheathing material are aluminum-plastic composite membrane, and winding battery core is placed in the plastic-aluminum
In composite membrane, the winding battery core includes multiple positive plates, multiple negative electrode tabs and multiple diaphragms, wherein the winding battery core is pressed
It is wound according to the order of diaphragm, positive plate, diaphragm, negative electrode tab, the winding battery core further includes being placed on the positive plate, bearing
Several insulating trips between pole piece and diaphragm.
Embodiment as a preferred embodiment of the above technical solution, anti-deformation soft-package battery volume provided by the embodiment of the utility model
Core further comprises some or all of following technical characteristic:
As an improvement of the above technical solution, in one embodiment of the utility model, the insulating trip with a thickness of
10~20 μm.
As an improvement of the above technical solution, in one embodiment of the utility model, the insulating trip is horizontally placed at
Between the diaphragm and the positive plate, negative electrode tab.
As an improvement of the above technical solution, in one embodiment of the utility model, the winding battery core by 10~
12 layers of positive plate, negative electrode tab and membrane winding form.
As an improvement of the above technical solution, in one embodiment of the utility model, the length of the insulating trip and
Size of the width no more than the winding battery core.
As an improvement of the above technical solution, in one embodiment of the utility model, the aluminum-plastic composite membrane includes
Outer resistance layer, barrier layer and the internal layer being made of nylon BOPA/PET.
Compared with prior art, the utility model has the following beneficial effects: the utility model is for existing production work
Skill does not have to carry out Important Adjustment to production line or controlling of production process without significantly influencing or changing；It is at low cost, it is easy to accomplish
Volume production extracts the insulating trip out after roll-forming, forms corresponding gap, and the gap is for eliminating battery core in use process
The dilatancy of generation, extends the service life of battery, thus brings huge economy the problem of can effectively improve battery bulging
Benefit.
Detailed description of the invention
It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the utility model
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of anti-deformation soft-package battery core provided by the utility model；
Fig. 2 is that the deformation pattern generated after flatulence occurs for anti-deformation soft-package battery core in the prior art.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of anti-deformation soft-package battery core, which is aluminum-plastic composite membrane, winding
Battery core is placed in the aluminum-plastic composite membrane, and the winding battery core includes multiple positive plates 10, multiple negative electrode tabs 20 and multiple diaphragms
30, wherein the winding battery core is wound according to the order of diaphragm 30, positive plate 10, diaphragm 30, negative electrode tab 20, the volume
It further include several insulating trips 40 being placed between the positive plate 10, negative electrode tab 20 and diaphragm 30 around battery core.
The insulating trip 40 with a thickness of 10~20 μm.Wherein, more specifically, the insulating trip 40 is horizontally placed at described
Between diaphragm 30 and the positive plate 10, negative electrode tab 20.And the length and width of the insulating trip 40 is no more than the winding
The size of battery core.
Specifically, the winding battery core is wound by 10~12 layers of positive plate 10, negative electrode tab 20 and diaphragm 30.It is described
Aluminum-plastic composite membrane includes the outer resistance layer being made of nylon BOPA/PET, (middle layer aluminium foil) barrier layer and (multi-functional high-barrier
Layer) internal layer.
The battery core production technology of battery pack is winding method technique in anti-deformation soft-package battery core provided by the utility model:
Positive plate 10, negative electrode tab 20 and diaphragm 30 are wound by the order of diaphragm, positive plate, diaphragm, negative electrode tab, the production work
Skill is during winding, and every 5 winding layer is placed in the insulating trip 40 of a piece of thickness 10-20um among diaphragm 30, is being rolled into
After type, the insulating trip being extracted out, then can forming corresponding gap, the gap is for eliminating the expansion that battery core is generated in use process
Deformation.
The above is preferred embodiments of the present invention, certainly cannot with this come limit the utility model it
Interest field, it is noted that for those skilled in the art, before not departing from the utility model principle
It puts, several improvement and variation can also be made, these, which improve and change, is also considered as the protection scope of the utility model.
Claims (6)
1. a kind of anti-deformation soft-package battery core, which is characterized in that the soft-package battery sheathing material is aluminum-plastic composite membrane, winding
Battery core is placed in the aluminum-plastic composite membrane, and the winding battery core includes multiple positive plates, multiple negative electrode tabs and multiple diaphragms,
In, the winding battery core is wound according to the order of diaphragm, positive plate, diaphragm, negative electrode tab, and the winding battery core further includes putting
Set several insulating trips between the positive plate, negative electrode tab and diaphragm.
2. anti-deformation soft-package battery core according to claim 1, which is characterized in that the insulating trip with a thickness of 10~
20μm。
3. anti-deformation soft-package battery core according to claim 2, which is characterized in that the insulating trip is horizontally placed at described
Between diaphragm and the positive plate, negative electrode tab.
4. anti-deformation soft-package battery core according to claim 1, which is characterized in that the winding battery core is by 10~12 layers
Positive plate, negative electrode tab and membrane winding form.
5. anti-deformation soft-package battery core according to claim 1 to 3, which is characterized in that the length of the insulating trip
Degree and width are no more than the size for winding battery core.
6. anti-deformation soft-package battery core according to claim 1, which is characterized in that the aluminum-plastic composite membrane includes by Buddhist nun
Outer resistance layer, barrier layer and the internal layer that imperial BOPA/PET is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820717719.0U CN208284580U (en) | 2018-05-15 | 2018-05-15 | A kind of anti-deformation soft-package battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820717719.0U CN208284580U (en) | 2018-05-15 | 2018-05-15 | A kind of anti-deformation soft-package battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208284580U true CN208284580U (en) | 2018-12-25 |
Family
ID=64729300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820717719.0U Expired - Fee Related CN208284580U (en) | 2018-05-15 | 2018-05-15 | A kind of anti-deformation soft-package battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208284580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164831A (en) * | 2020-10-12 | 2021-01-01 | 珠海格力能源环境技术有限公司 | Lithium battery and winding method thereof |
| CN112670599A (en) * | 2020-12-23 | 2021-04-16 | 惠州市恒泰科技股份有限公司 | Battery cell winding method and battery preparation method |
-
2018
- 2018-05-15 CN CN201820717719.0U patent/CN208284580U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164831A (en) * | 2020-10-12 | 2021-01-01 | 珠海格力能源环境技术有限公司 | Lithium battery and winding method thereof |
| CN112670599A (en) * | 2020-12-23 | 2021-04-16 | 惠州市恒泰科技股份有限公司 | Battery cell winding method and battery preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 Termination date: 20190515 |