CN205004378U - Flexible package lithium battery - Google Patents
Flexible package lithium battery Download PDFInfo
- Publication number
- CN205004378U CN205004378U CN201520427505.6U CN201520427505U CN205004378U CN 205004378 U CN205004378 U CN 205004378U CN 201520427505 U CN201520427505 U CN 201520427505U CN 205004378 U CN205004378 U CN 205004378U
- Authority
- CN
- China
- Prior art keywords
- matter
- nickel
- ear
- aluminium matter
- anode ear
- 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
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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
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- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a flexible package lithium battery, utmost point ear including setting up between the both sides of plastic -aluminum complex film and anodal ear of aluminium matter and nickel matter negative pole ear is glued, utmost point ear is glued and is reached the portion of bending that is connected with stick part including stick part, tight both sides at anodal ear of aluminium matter and nickel matter negative pole ear are pasted to stick part's one side, stick part's another side is pasted on the plastic -aluminum complex film of the both sides of anodal ear of aluminium matter and nickel matter negative pole ear, the portion of bending turns over the book downwards along the tip of anodal ear of aluminium matter and the supra -auricular plastic -aluminum complex film of nickel matter negative pole, and paste tight plastic -aluminum complex film, thus, in the time of can effectively avoiding anodal ear of aluminium matter or nickel matter negative pole ear to turn over, aluminium lamination and anodal ear of aluminium matter or the short circuit of nickel matter negative pole in the plastic -aluminum complex film, prevent effectively that the aluminium lamination from corroding, and can reduce the physiosis proportion of soft -packing lithium cell, additionally, a back is turned over by the portion of bending during utmost point ear is glued, can reduce the height of lithium cell, promote the volume energy density of lithium cell.
Description
Technical field
The utility model relates to technical field of lithium batteries, particularly relates to a kind of soft package lithium battery.
Background technology
Soft package lithium battery (also known as polymer battery) has that volume is little, lightweight, specific energy is high, fail safe is high and the multiple advantage such as flexible design.Wherein, known soft package lithium battery generally comprises battery core and holds the aluminum-plastic composite membrane of battery core, battery core is welded with positive and negative lug, and positive and negative lug passes from aluminum-plastic composite membrane.In addition, in order to realize the good combination at positive and negative lug and aluminum-plastic composite membrane sealing line position, realizing excellent sealing, needing to cover tab outside the metallic conductor of positive and negative lug.
In prior art, the positive and negative tab of soft package lithium battery is separately independent use.Such as, the periphery of the anode ear of existing soft package lithium battery is coated with anode ear glue, and the periphery of negative electrode lug is coated with negative electrode lug glue, keeps a determining deviation between anode ear glue and negative electrode lug glue.Said structure design easily causes that the negative pole component's feet of negative pole and electronegative potential directly contacts with the aluminium lamination of the external packing aluminum plastic film of flexible package and short circuit connects, and corrodes aluminium lamination, and the water-proof function of aluminum-plastic composite membrane was lost efficacy, cause lithium battery inflatable.In addition, when positive and negative tab spacing is less, especially for bluetooth lithium battery, the potential safety hazard causing leakage is easy to.Cause the reason of leakage to be, lug after heat-sealing, because positive and negative tab spacing is little, between tab spacing, easily producing space, and in order to eliminate the space in tab spacing, Heat-seal parameter must be heightened, negative pole and aluminum-plastic composite membrane short circuit can be caused like this, cause batch leakage.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides the soft package lithium battery that a kind of security performance is more excellent.
The utility model realizes like this, a kind of soft package lithium battery, comprise aluminum-plastic composite membrane, aluminium matter anode ear, nickel matter negative electrode lug and core, described core is built in described aluminum-plastic composite membrane, described aluminium matter anode ear and described nickel matter negative electrode lug are welded in described core respectively, described aluminum-plastic composite membrane is encapsulated in the both sides of described aluminium matter anode ear and described nickel matter negative electrode lug respectively, described soft package lithium battery also comprises the tab between the both sides being arranged on described aluminum-plastic composite membrane and described aluminium matter anode ear and described nickel matter negative electrode lug, the bending part that described tab comprises paste section and is connected with described paste section, the one side of described paste section is adjacent to the both sides at described aluminium matter anode ear and described nickel matter negative electrode lug, the another side of described paste section is pasted onto on the described aluminum-plastic composite membrane of the both sides of described aluminium matter anode ear and described nickel matter negative electrode lug, described bending part turns down downwards along the end of the described aluminum-plastic composite membrane on described aluminium matter anode ear and described nickel matter negative electrode lug, and be adjacent to described aluminum-plastic composite membrane.
Further, the end that described aluminium matter anode ear welds with wiring board is provided with a nickel sheet, and described nickel sheet extends the both sides of described aluminium matter positive pole respectively along the both sides of described aluminium matter anode ear Width.
Further, the surface that described nickel sheet is welded with wiring board is formed with multiple hole shape structure.
Further, the material of described tab is PP glue or PE glue.
The beneficial effects of the utility model are: the soft package lithium battery that the utility model provides, it also comprises the tab between the both sides being arranged on aluminum-plastic composite membrane and aluminium matter anode ear and nickel matter negative electrode lug, the bending part that tab comprises paste section and is connected with paste section, the one side of paste section is adjacent to the both sides at aluminium matter anode ear and nickel matter negative electrode lug, the another side of paste section is pasted onto on the aluminum-plastic composite membrane of the both sides of aluminium matter anode ear and nickel matter negative electrode lug, bending part turns down downwards along the end of the aluminum-plastic composite membrane on aluminium matter anode ear and nickel matter negative electrode lug, and be adjacent to aluminum-plastic composite membrane, like this, when effectively can avoid aluminium matter anode ear or the turnover of nickel matter negative electrode lug, aluminium lamination in aluminum-plastic composite membrane and aluminium matter anode ear or the short circuit of nickel matter negative pole, effectively prevent aluminium lamination from corroding, and the inflatable ratio of flexible package lithium cell can be reduced, after bending part turnover in tab, the height of lithium battery can be reduced, promote the volume energy density of lithium battery.
In addition, coated by tab while of logical peraluminous anode ear and nickel matter negative electrode lug, solve the battery core leakage problem when tab spacing is less, thus improve battery security.
Accompanying drawing explanation
Fig. 1 is the structural representation of the soft package lithium battery that the utility model one embodiment provides.
Embodiment
The technical problem solved to make the utility model, technical scheme and beneficial effect are clearly understood, below in conjunction with drawings and Examples, are further elaborated to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of soft package lithium battery, comprise aluminum-plastic composite membrane 1, aluminium matter anode ear 2, nickel matter negative electrode lug 3 and core 4, core 4 is built in aluminum-plastic composite membrane 1, aluminium matter anode ear 2 and nickel matter negative electrode lug 3 are welded in core 4 respectively, aluminum-plastic composite membrane 1 is encapsulated in the both sides of aluminium matter anode ear 2 and described nickel matter negative electrode lug 3 respectively, soft package lithium battery also comprises the tab 5 between the both sides being arranged on aluminum-plastic composite membrane 1 and aluminium matter anode ear 2 and nickel matter negative electrode lug 3, the bending part 52 that tab 5 comprises paste section 51 and is connected with paste section 51, the one side of paste section 51 is adjacent to the both sides at aluminium matter anode ear 2 and nickel matter negative electrode lug 3, the another side of paste section 51 is pasted onto on the aluminum-plastic composite membrane 1 of the both sides of aluminium matter anode ear 2 and nickel matter negative electrode lug 3, bending part 52 turns down downwards along the end of the aluminum-plastic composite membrane 1 on aluminium matter anode ear 2 and nickel matter negative electrode lug 3, and be adjacent to aluminum-plastic composite membrane 1.
Further, the end that aluminium matter anode ear 2 welds with wiring board is provided with a nickel sheet 6, nickel sheet 6 extends the both sides of aluminium matter positive pole 2 respectively along the both sides of aluminium matter anode ear 2 Width, like this, the contact area of nickel sheet 6 and wiring board can be improved, thus improve the solder attachment power between nickel sheet 6 and wiring board.
Further, the surface that nickel sheet 6 is welded with wiring board is formed with multiple hole shape structure, like this, the solder attachment power of nickel sheet 6 can be improved.
Further, the material of tab 5 is PP glue or PE glue.
The beneficial effects of the utility model are: the soft package lithium battery that the utility model provides, it also comprises the tab 5 between the both sides being arranged on aluminum-plastic composite membrane 1 and aluminium matter anode ear 2 and nickel matter negative electrode lug 3, the bending part 52 that tab 5 comprises paste section 51 and is connected with paste section 51, the one side of paste section 51 is adjacent to the both sides at aluminium matter anode ear 2 and nickel matter negative electrode lug 3, the another side of paste section 51 is pasted onto on the aluminum-plastic composite membrane 1 of the both sides of aluminium matter anode ear 2 and nickel matter negative electrode lug 3, bending part 52 turns down downwards along the end of the aluminum-plastic composite membrane 1 on aluminium matter anode ear 2 and nickel matter negative electrode lug 3, and be adjacent to aluminum-plastic composite membrane 1, like this, when can effectively avoid aluminium matter anode ear 2 or nickel matter negative electrode lug 3 to turn down, aluminium lamination in aluminum-plastic composite membrane 1 and aluminium matter anode ear 2 or the short circuit of nickel matter negative pole 3, effectively prevent aluminium lamination from corroding, and the inflatable ratio of flexible package lithium cell can be reduced, after bending part 52 in tab 5 turns down, the height of lithium battery can be reduced, promote the volume energy density of lithium battery.
In addition, due to coated by tab 5 while of aluminium matter anode ear 2 and nickel matter negative electrode lug 3, solve the battery core leakage problem when tab spacing is less, thus improve battery security.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a soft package lithium battery, comprise aluminum-plastic composite membrane, aluminium matter anode ear, nickel matter negative electrode lug and core, described core is built in described aluminum-plastic composite membrane, described aluminium matter anode ear and described nickel matter negative electrode lug are welded in described core respectively, described aluminum-plastic composite membrane is encapsulated in the both sides of described aluminium matter anode ear and described nickel matter negative electrode lug respectively, it is characterized in that, described soft package lithium battery also comprises the tab between the both sides being arranged on described aluminum-plastic composite membrane and described aluminium matter anode ear and described nickel matter negative electrode lug, the bending part that described tab comprises paste section and is connected with described paste section, the one side of described paste section is adjacent to the both sides at described aluminium matter anode ear and described nickel matter negative electrode lug, the another side of described paste section is pasted onto on the described aluminum-plastic composite membrane of the both sides of described aluminium matter anode ear and described nickel matter negative electrode lug, described bending part turns down downwards along the end of the described aluminum-plastic composite membrane on described aluminium matter anode ear and described nickel matter negative electrode lug, and be adjacent to described aluminum-plastic composite membrane.
2. soft package lithium battery according to claim 1, is characterized in that, the end that described aluminium matter anode ear welds with wiring board is provided with a nickel sheet, and described nickel sheet extends the both sides of described aluminium matter positive pole respectively along the both sides of described aluminium matter anode ear Width.
3. soft package lithium battery according to claim 2, is characterized in that, the surface that described nickel sheet is welded with wiring board is formed with multiple hole shape structure.
4. soft package lithium battery according to claim 1, is characterized in that, the material of described tab is PP glue or PE glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520427505.6U CN205004378U (en) | 2015-06-19 | 2015-06-19 | Flexible package lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520427505.6U CN205004378U (en) | 2015-06-19 | 2015-06-19 | Flexible package lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004378U true CN205004378U (en) | 2016-01-27 |
Family
ID=55161250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520427505.6U Expired - Fee Related CN205004378U (en) | 2015-06-19 | 2015-06-19 | Flexible package lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963176A (en) * | 2018-08-01 | 2018-12-07 | 广州鹏辉能源科技股份有限公司 | Lithium Fe battery positive pole ear and lithium Fe battery |
| CN117458054A (en) * | 2023-12-25 | 2024-01-26 | 中航锂电（洛阳）有限公司 | Partial pressure structure, battery monomer, battery and power consumption device |
-
2015
- 2015-06-19 CN CN201520427505.6U patent/CN205004378U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963176A (en) * | 2018-08-01 | 2018-12-07 | 广州鹏辉能源科技股份有限公司 | Lithium Fe battery positive pole ear and lithium Fe battery |
| CN117458054A (en) * | 2023-12-25 | 2024-01-26 | 中航锂电（洛阳）有限公司 | Partial pressure structure, battery monomer, battery and power consumption device |
| CN117458054B (en) * | 2023-12-25 | 2024-05-10 | 中航锂电（洛阳）有限公司 | Partial pressure structure, soft packet of battery monomer, soft packet of battery and power consumption device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160127 Termination date: 20180619 |