CN112563580A - Manufacturing method of soft-package lithium battery capable of improving poor insulation - Google Patents
Manufacturing method of soft-package lithium battery capable of improving poor insulation Download PDFInfo
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- CN112563580A CN112563580A CN202011377513.6A CN202011377513A CN112563580A CN 112563580 A CN112563580 A CN 112563580A CN 202011377513 A CN202011377513 A CN 202011377513A CN 112563580 A CN112563580 A CN 112563580A
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- protective tape
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- battery cell
- poor insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims abstract description 59
- 210000004027 cell Anatomy 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002985 plastic film Substances 0.000 claims abstract description 24
- 229920006255 plastic film Polymers 0.000 claims abstract description 24
- 210000005056 cell body Anatomy 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 16
- 239000002390 adhesive tape Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 13
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 13
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides a manufacturing method of a soft package lithium battery for improving poor insulation, which comprises the following steps: s1, welding a positive electrode tab and a negative electrode tab to the soft-package battery cell body to form a positive electrode welding print and a negative electrode welding print; s2, sticking a protective adhesive tape between the battery cell body and the tab glue to completely cover the positive electrode welding mark and the negative electrode welding mark; s3, placing the battery cell pasted with the protective tape into an aluminum plastic film shell, carrying out top sealing along the outer edge of the width of the protective tape and carrying out side sealing along one side edge of the length direction of the protective tape; s4, baking, injecting liquid and forming the packaged battery cell, and performing secondary sealing by air suction along the other side edge of the length direction of the protective tape. The invention can effectively prevent the PP layer of the aluminum plastic film in the top sealing heat affected zone from being adhered, avoid the damage of the PP layer when the soft package battery cell is produced and used in the follow-up process, and greatly reduce the proportion of poor insulation of the soft package lithium ion battery.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a manufacturing method of a soft package lithium battery with poor insulation.
Background
Lithium ion batteries are known as "green chemical energy" in the 21 st century, and are widely used in many fields such as 3C consumer electronics, power batteries, energy storage, and the like. Soft package lithium ion battery compares with lithium ion battery such as traditional steel casing, aluminum hull, and the design is nimble, and electric core appearance can arbitrary shape, and energy density is bigger, and the security of battery is better, and when taking place the safety problem, soft package lithium ion battery generally can the flatulence crack, is difficult for exploding.
The soft package battery achieves the sealing effect through the heat sealing of the aluminum plastic film, a high-temperature hot pressing mode is generally adopted during the heat sealing, the aluminum plastic film PP layer is fused within the temperature range of 150-200 ℃, and two layers of aluminum plastic film PP layers are laminated together through pressurization so as to complete the heat sealing process. Because the aluminum layer of the aluminum plastic film has a good heat conduction effect, the aluminum plastic film near the seal can be heated to a temperature above the PP melting point in the heat sealing process of the aluminum plastic film, if the two aluminum plastic films are attached together, the PP layers of the two aluminum plastic films can be adhered together, and the heat affected zone can reach 1-6mm generally. Local adhesion between two-layer plastic-aluminum membrane outside the seal district, in soft packet of lithium ion battery's follow-up processing and use, because the effect of external force causes the damaged plastic-aluminum membrane PP layer in adhesion district very easily, leads to electrolyte and plastic-aluminum membrane aluminium lamination direct contact, causes electric core to insulate badly. Particularly, when a soft package lithium ion battery cell is formed, the battery cell generates gas, the air bag expands, and a PP layer is very easily damaged under the action of tension in an aluminum plastic film adhesion area near a top seal of the battery cell, so that poor insulation is generated, and the battery cell is scrapped. In addition, in the process of using and storing the lithium ion battery with poor insulation, the aluminum layer of the aluminum-plastic film is very easy to corrode, so that the function of the aluminum-plastic film for isolating water and oxygen is lost, and the service life of the lithium ion battery is seriously influenced. Especially when soft-packaged electrical core top seal, the heat-seal condition generally can be more violent, in order to reach sealed effect, generally can set up higher heat-seal temperature and longer heat-seal time, therefore the heat influence adhesion district can be more obvious when the top seal to it is difficult to improve through the mode of optimizing heat-seal condition and capping structure. Therefore, when the soft package battery cell is designed and produced, the manufacturing mode of the soft package battery needs to be optimized so as to reduce the proportion of poor insulation of the soft package lithium ion battery and ensure the service life of the battery.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a manufacturing method of a soft package lithium battery for improving poor insulation
The invention provides a manufacturing method of a soft package lithium battery for improving poor insulation, which comprises the following steps:
s1, welding a positive electrode tab and a negative electrode tab to the soft-package battery cell body to form a positive electrode welding print and a negative electrode welding print;
s2, sticking a protective adhesive tape between the battery cell body and the tab glue to completely cover the positive electrode welding mark and the negative electrode welding mark;
s3, placing the battery cell pasted with the protective tape into an aluminum plastic film shell, carrying out top sealing along the outer edge of the width of the protective tape and carrying out side sealing along one side edge of the length direction of the protective tape;
s4, baking, injecting liquid and forming the packaged battery cell, and performing secondary sealing by air suction along the other side edge of the length direction of the protective tape.
Preferably, in step S1, the soft-packaged battery cell body is a laminated battery cell or a wound battery cell, the positive electrode tab is composed of an aluminum metal strip and a tab glue, and the negative electrode tab is composed of a copper nickel-plated metal strip and a tab glue.
Preferably, in step S2, the width direction of the protective tape overlaps with the tab adhesive and the length direction of the protective tape is equal to or longer than the cell body by 0.5-2mm, the thickness of the protective tape is 20-80 μm, and the width of the protective tape is 5-15 mm.
Preferably, in step S2, the protective tape is made of polyethylene terephthalate or polyimide.
Preferably, in the step S3, the temperature is 170-.
Preferably, in the top seal of step S3, the inner side of the seal edge is spaced from the outer side of the protective tape by 0.2-2.0 mm.
Preferably, in the step S3, the side seal temperature is 160 ℃ and 190 ℃, the pressure is 0.1-1.5MPa, the time is 1-3S, and the plastic-aluminum film melting rate is controlled to be 10% -50%.
Preferably, in the step S4, the temperature of the secondary seal is 190 ℃, the pressure is 0.1-1.5MPa, the time is 1-3S, and the melting rate of the aluminum plastic film is controlled to be 10% -50%.
According to the manufacturing method of the soft-package lithium battery with the improved poor insulation, the protective adhesive tape is arranged between the inner side edge of the top seal and the battery cell body, so that when the soft-package battery cell is sealed, an aluminum plastic film PP layer in a heat affected zone of the top seal can be effectively prevented from being adhered, the PP layer is prevented from being damaged in subsequent production and use of the soft-package battery cell, and the proportion of the poor insulation of the soft-package lithium battery cell is greatly reduced; the manufacturing method of the invention is convenient for realizing industrialized production, and can achieve the purposes of reducing production cost and improving production benefit by reducing poor production.
Drawings
Fig. 1 is a flow chart of a manufacturing method of a soft-package lithium battery for improving poor insulation according to the present invention;
fig. 2 is a schematic diagram of a battery cell of the present invention after welding;
fig. 3 is a schematic diagram of a top seal protective tape arranged after welding of a cell according to the invention;
fig. 4 is a schematic diagram of a battery cell of the invention after secondary sealing;
fig. 5 is a schematic diagram of a top seal protection tape arranged on a battery cell with two side tabs.
Detailed Description
Referring to fig. 1, the invention provides a manufacturing method of a soft package lithium battery for improving poor insulation, which comprises the following steps:
s1, welding a positive electrode tab and a negative electrode tab to the soft-package battery cell body to form a positive electrode welding print and a negative electrode welding print;
s2, sticking a protective adhesive tape between the battery cell body and the tab glue to completely cover the positive electrode welding mark and the negative electrode welding mark;
s3, placing the battery cell pasted with the protective tape into an aluminum plastic film shell, carrying out top sealing along the outer edge of the width of the protective tape and carrying out side sealing along one side edge of the length direction of the protective tape;
s4, baking, injecting liquid and forming the packaged battery cell, and performing secondary sealing by air suction along the other side edge of the length direction of the protective tape.
According to the invention, the protective adhesive tape is arranged between the inner side edge of the top seal and the cell body, so that the adhesion of the PP layer of the aluminum plastic film in the heat affected zone of the top seal can be effectively prevented when the top seal of the soft-package cell is carried out, the PP layer is prevented from being damaged during the subsequent production and use of the soft-package cell, and the proportion of poor insulation of the soft-package lithium ion battery is greatly reduced.
Example 1
The manufacturing method for improving poor insulation of the soft package lithium ion battery in the embodiment specifically comprises the following steps:
s1, welding the soft-package battery cell 1 with a positive electrode tab and a negative electrode tab to form a negative electrode weld mark 21 and a negative electrode weld mark 22, respectively, as shown in fig. 2;
s2, attaching dark brown protective tapes 4 between the tab glue 31, the tab glue 32 and the cell body 1, wherein the protective tapes are made of PI, 60um in thickness and 10mm in width, the width direction of each protective tape is partially overlapped with the tab glue 31 and the tab glue 32, the overlapping distance is 0.5mm, the protective tapes completely cover the negative electrode welding print 21 and the negative electrode welding print 22, and the length direction of each protective tape is flush with the cell body 1 or slightly larger than the cell body by 0.5mm, as shown in FIG. 3;
s3, assembling the battery cell pasted with the protective tape 4 into a punched aluminum-plastic film shell, carrying out top sealing along the outer edge of the coating according to the process conditions of 185 ℃, 0.3Mpa and 1.8S of top sealing, forming a top seal 6, carrying out side sealing according to the process conditions of 180 ℃, 0.3Mp and 1.2S of time, wherein the distance between the outer edge of the protective tape 4 and the inner edge of the top seal is 0.5mm, and the distance between the side seal 7 and one side edge of the protective tape 4 in the length direction is 1.0mm, as shown in FIG. 4;
s4, baking, injecting liquid, forming and exhausting air along the other side edge of the length direction of the protective tape 4 to carry out secondary sealing to the packaged battery cell to form a secondary sealing seal 8, wherein the secondary sealing conditions are that the temperature is 180 ℃, the pressure is 0.3Mp and the time is 1.2S, the distance between the secondary sealing seal and the other side edge of the protective tape is 1.0mm, and the insulation resistance between the cathode lug and the battery cell aluminum-plastic film is detected as shown in figure 4.
And (3) effect comparison: when 1000 battery cells are produced by using the packaging method, the insulation resistance of 2 battery cells is less than 10 MOmega, and the occurrence ratio of poor insulation is 0.2%. The comparison group uses the same process conditions to produce 200 cells, 6 cells have insulation resistance values less than 10 MOmega, and the occurrence ratio of poor insulation is 3%.
Example 2
The manufacturing method for improving poor insulation of the soft package lithium ion battery in the embodiment specifically comprises the following steps:
s1, welding positive and negative electrode tabs on the soft-packaged battery cell 1 with the electrode tabs at the two sides;
s2, attaching a heat-resistant protective adhesive tape 41 between a positive electrode tab glue and the cell body 1, attaching a heat-resistant protective adhesive tape 42 between a negative electrode tab glue and the cell body 1, wherein the protective adhesive tape is made of PET, the thickness of the protective adhesive tape is 30um, the width of the protective adhesive tape is 9mm, the width direction of the adhesive tape is overlapped with the tab glue part by 0.5mm, the adhesive tape completely covers the main welding seal of the positive electrode and the negative electrode, and the length direction of the adhesive tape is flush with the cell body or slightly larger than the body by 0.5 mm;
s3, assembling the battery cell pasted with the protective tape into a punched aluminum-plastic film shell, respectively carrying out top sealing along the outer edges of the protective tape 41 and the protective tape 42 according to the top sealing process conditions of 185 ℃ and 0.3Mpa time for 1.8S to form a positive pole top seal and a negative pole top seal, wherein the distance between the outer edges of the protective tape 41 and the inner edge of the top seal is 0.5mm, and the distance between the outer edges of the protective tape 41 and the inner edge of the top seal is 0.2S, and carrying out side sealing according to the side sealing process conditions of 180 ℃ and 0.3Mp time for 1.2S to form a side seal, wherein the distance between the side seal and one side edge of the protective tape 41 and the protective;
s4, baking, injecting liquid, forming and exhausting air along the other side edge of the length direction of the protective tape 4 to form a second seal, wherein the second seal is performed under the conditions that the temperature is 180 ℃, the pressure is 0.3Mp and the time is 1.2S, the distance between the second seal and the other side of the protective tape is 1.0mm, and the insulation resistance between the negative pole lug and the cell aluminum-plastic film is detected.
And (3) effect comparison: when 1000 battery cells are produced by using the packaging method, the insulation resistance of 3 battery cells is less than 10 MOmega, and the occurrence ratio of poor insulation is 0.3%. The comparison group uses the same process conditions to produce 200 cells, 6 cells have insulation resistance values less than 10 MOmega, and the occurrence ratio of poor insulation is 3%.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A manufacturing method of a soft package lithium battery for improving poor insulation is characterized by comprising the following steps:
s1, welding a positive electrode tab and a negative electrode tab to the soft-package battery cell body to form a positive electrode welding print and a negative electrode welding print;
s2, sticking a protective adhesive tape between the battery cell body and the tab glue to completely cover the positive electrode welding mark and the negative electrode welding mark;
s3, placing the battery cell pasted with the protective tape into an aluminum plastic film shell, carrying out top sealing along the outer edge of the width of the protective tape and carrying out side sealing along one side edge of the length direction of the protective tape;
s4, baking, injecting liquid and forming the packaged battery cell, and performing secondary sealing by air suction along the other side edge of the length direction of the protective tape.
2. The method for manufacturing a soft-packaged lithium battery with improved poor insulation of claim 1, wherein in step S1, the soft-packaged cell body is a laminated cell or a wound cell, the positive tab is composed of an aluminum metal strip and tab glue, and the negative tab is composed of a copper nickel-plated metal strip and tab glue.
3. The method for manufacturing a soft-packaged lithium battery with improved poor insulation according to claim 1, wherein in step S2, the width direction of the protective tape is overlapped with the tab glue and the length direction of the protective tape is flush with or longer than the cell body by 0.5-2mm, the thickness of the protective tape is 20-80 μm, and the width of the protective tape is 5-15 mm.
4. The method for manufacturing a lithium pouch battery with improved poor insulation according to any one of claims 1 to 3, wherein in step S2, the protective tape is made of polyethylene terephthalate or polyimide.
5. The method for manufacturing a soft-packaged lithium battery with improved poor insulation as claimed in any one of claims 1-3, wherein the capping temperature is 170-.
6. The method for manufacturing a lithium battery pack with improved poor insulation according to any one of claims 1 to 3, wherein the distance between the inner side of the sealing edge and the outer side of the protective tape is 0.2 to 2.0mm in the top seal in step S3.
7. The method as claimed in any one of claims 1 to 3, wherein the side seal at step S3 has a temperature of 160 ℃ and 190 ℃, a pressure of 0.1 to 1.5MPa, a time of 1 to 3S, and a plastic-aluminum film melting rate of 10 to 50%.
8. The method as claimed in any one of claims 1 to 3, wherein the temperature of the secondary seal is 190 ℃, the pressure is 0.1 to 1.5MPa, the time is 1 to 3S, and the melting rate of the aluminum plastic film is controlled to 10% to 50% in the step S4.
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| CN202011377513.6A CN112563580B (en) | 2020-11-30 | 2020-11-30 | Manufacturing method of soft-package lithium battery capable of improving poor insulation |
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| CN202011377513.6A CN112563580B (en) | 2020-11-30 | 2020-11-30 | Manufacturing method of soft-package lithium battery capable of improving poor insulation |
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| CN112563580B CN112563580B (en) | 2022-06-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363555A (en) * | 2021-04-30 | 2021-09-07 | 万向一二三股份公司 | Lithium ion battery for improving leakage failure of soft package battery and packaging process thereof |
| CN113644351A (en) * | 2021-06-28 | 2021-11-12 | 广东嘉尚新能源科技有限公司 | Soft-package lithium battery core assembly capable of prolonging service life of battery cell and lithium battery cell manufacturing method |
| CN113851792A (en) * | 2021-10-25 | 2021-12-28 | 珠海冠宇电池股份有限公司 | Soft package lithium ion battery and electronic device |
| CN114628857A (en) * | 2021-08-16 | 2022-06-14 | 万向一二三股份公司 | Negative electrode lug for soft package lithium battery |
| CN116026243A (en) * | 2022-12-29 | 2023-04-28 | 重庆太蓝新能源有限公司 | Method, device, equipment and storage medium for detecting edge sealing of soft package battery |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003151642A (en) * | 2001-11-09 | 2003-05-23 | Mitsubishi Chemicals Corp | Evaluation method for lithium secondary battery |
| CN101276931A (en) * | 2007-03-30 | 2008-10-01 | 深圳市邦凯电子有限公司 | Flexible package lithium cell and method of processing the same |
| CN204088500U (en) * | 2014-08-21 | 2015-01-07 | 东莞新能源科技有限公司 | The packaging system of flexible packing lithium ion battery |
| CN204118168U (en) * | 2014-07-23 | 2015-01-21 | 东莞市迈科科技有限公司 | A kind of Soft Roll lamination electrokinetic cell lug and battery |
| CN205488296U (en) * | 2016-03-30 | 2016-08-17 | 中航锂电（洛阳）有限公司 | Battery flexible package protection piece , compound electric core and soft package lithium ion battery |
| WO2017117748A1 (en) * | 2016-01-06 | 2017-07-13 | 宁德新能源科技有限公司 | Rechargeable battery |
| CN109449474A (en) * | 2018-09-19 | 2019-03-08 | 多氟多（焦作）新能源科技有限公司 | A kind of preparation method of soft-package battery |
| CN209344134U (en) * | 2018-12-27 | 2019-09-03 | 湖南立方新能源科技有限责任公司 | A kind of lithium ion battery structure |
| CN209520262U (en) * | 2018-12-20 | 2019-10-22 | 微宏动力系统（湖州）有限公司 | A kind of aluminum plastic film punching hole mold and soft pack cell |
| CN111326681A (en) * | 2018-12-14 | 2020-06-23 | 微宏动力系统（湖州）有限公司 | Soft package battery core and battery system |
| CN211556028U (en) * | 2019-12-31 | 2020-09-22 | 江苏丰盈科技有限公司 | Lithium ion battery core pack and lithium ion battery |
| WO2021013157A1 (en) * | 2019-07-23 | 2021-01-28 | 宁德时代新能源科技股份有限公司 | Secondary battery |
-
2020
- 2020-11-30 CN CN202011377513.6A patent/CN112563580B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003151642A (en) * | 2001-11-09 | 2003-05-23 | Mitsubishi Chemicals Corp | Evaluation method for lithium secondary battery |
| CN101276931A (en) * | 2007-03-30 | 2008-10-01 | 深圳市邦凯电子有限公司 | Flexible package lithium cell and method of processing the same |
| CN204118168U (en) * | 2014-07-23 | 2015-01-21 | 东莞市迈科科技有限公司 | A kind of Soft Roll lamination electrokinetic cell lug and battery |
| CN204088500U (en) * | 2014-08-21 | 2015-01-07 | 东莞新能源科技有限公司 | The packaging system of flexible packing lithium ion battery |
| WO2017117748A1 (en) * | 2016-01-06 | 2017-07-13 | 宁德新能源科技有限公司 | Rechargeable battery |
| CN205488296U (en) * | 2016-03-30 | 2016-08-17 | 中航锂电（洛阳）有限公司 | Battery flexible package protection piece , compound electric core and soft package lithium ion battery |
| CN109449474A (en) * | 2018-09-19 | 2019-03-08 | 多氟多（焦作）新能源科技有限公司 | A kind of preparation method of soft-package battery |
| CN111326681A (en) * | 2018-12-14 | 2020-06-23 | 微宏动力系统（湖州）有限公司 | Soft package battery core and battery system |
| CN209520262U (en) * | 2018-12-20 | 2019-10-22 | 微宏动力系统（湖州）有限公司 | A kind of aluminum plastic film punching hole mold and soft pack cell |
| CN209344134U (en) * | 2018-12-27 | 2019-09-03 | 湖南立方新能源科技有限责任公司 | A kind of lithium ion battery structure |
| WO2021013157A1 (en) * | 2019-07-23 | 2021-01-28 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| CN211556028U (en) * | 2019-12-31 | 2020-09-22 | 江苏丰盈科技有限公司 | Lithium ion battery core pack and lithium ion battery |
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