CN215815995U - Full-tab soft-package laminated battery - Google Patents
Full-tab soft-package laminated battery Download PDFInfo
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- CN215815995U CN215815995U CN202122403892.8U CN202122403892U CN215815995U CN 215815995 U CN215815995 U CN 215815995U CN 202122403892 U CN202122403892 U CN 202122403892U CN 215815995 U CN215815995 U CN 215815995U
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- 229920006280 packaging film Polymers 0.000 claims abstract description 50
- 239000012785 packaging film Substances 0.000 claims abstract description 50
- 239000003292 glue Substances 0.000 claims description 22
- 239000011888 foil Substances 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 239000011889 copper foil Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 104
- 238000005538 encapsulation Methods 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 239000011247 coating layer Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000011257 shell material Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011530 conductive current collector Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
Abstract
The utility model provides a full-lug soft-package laminated battery which comprises a battery cell, a positive electrode packaging film and a negative electrode packaging film, wherein the battery cell is wrapped by the positive electrode packaging film and the negative electrode packaging film; the negative electrode packaging film comprises a negative electrode conducting layer, the negative electrode conducting layer is electrically connected with the negative electrode of the battery cell and is positioned on one surface, far away from the battery cell, of the negative electrode packaging film. According to the utility model, the positive electrode conducting layer on the outer side surface of the positive electrode packaging film is electrically connected with the positive electrode of the battery cell, the negative electrode conducting layer on the outer side surface of the negative electrode packaging film is electrically connected with the negative electrode of the battery cell, so that the battery is integrally electrified, and two surfaces of the battery are respectively used as the positive electrode and the negative electrode, so that space can be saved during grouping, and the grouping efficiency and the connection reliability and stability of the battery cell are improved.
Description
Technical Field
The utility model relates to the technical field of lithium ion batteries, in particular to a full-tab soft-package laminated battery.
Background
The rapid development of lithium ion batteries is promoted by the current reasons of global ecological environment destruction, energy shortage, new energy policy development of all countries in the world and the like. The lithium ion battery has excellent electrochemical properties such as high power density, high working voltage, long service life and the like, so that the lithium ion battery is widely applied to the fields of 3C digital products, new energy automobiles, energy storage and the like.
With the rapid development of the electric automobile industry, the demand of lithium ion batteries continues to increase substantially as a power source. However, the actual energy density of the lithium ion battery is far from meeting the requirement of long endurance mileage of people, and the improvement of the energy density of the battery can be generally realized by two schemes, wherein one scheme is that the energy density of a single battery cell is improved by starting from the battery and improving the level of a system platform; the other scheme is that the battery cores are started in groups, and the integral energy density of the battery pack is improved by improving the grouping efficiency. The first scheme has the defects of long system development time, great technical difficulty and great dependence on development progress of electrode materials, electrolyte and various key materials. The second scheme does not relate to platform development, has relatively low technical difficulty and can be applied in a short time.
However, with respect to the second solution, the prior art has the following problems: the chinese patent with publication number CN208986079U discloses an electrode-less solid-state lithium battery, which comprises an anode, a cathode, and a diaphragm layer, wherein the anode comprises an anode carrier and an anode coating layer, the cathode comprises a cathode carrier and a cathode coating layer, grooves are provided on both the anode carrier and the cathode carrier, one or both ends of the groove are leaked at one side of the anode carrier and the cathode carrier, the anode coating layer is coated on the side of the anode carrier where the groove is provided, and the cathode coating layer is coated on the side of the cathode carrier where the groove is provided; the separator layer is arranged between the positive coating layer and the negative coating layer, the positive electrode and the negative electrode wrap the separator layer, and the edges of the positive electrode and the negative electrode are sealed. The design of replacing the battery tab by removing the PP layer at the groove has the defects of poor shock resistance and easy damage of the packaging film, and is not beneficial to the stable operation of the battery.
And if the notice number is: CN 213483773U's chinese patent discloses an use current collector's full utmost point ear battery of negative pole, the terminal white copper foil of leaving of negative pole piece of battery is as empty foil district, negative pole piece collocation positive plate, diaphragm make and roll up the core, and wherein the negative pole piece that rolls up the core is full utmost point ear structure, the shell material of battery is the metal, and the electrically conductive current collector of wave shape has been placed to the bottom of shell, roll up and place on the current collector in the shell and the empty foil district of its negative pole piece through the mode of mechanical contact in arranging in. The defect that this patent exists: through the contact of the winding battery core and the wavy conductive current collector arranged at the bottom of the metal shell, the contact structure has the defects of unstable contact and easy occurrence of poor contact, and is not favorable for the long-term stable operation of the battery.
Therefore, in view of a series of problems existing in the prior art, it is urgently needed for those skilled in the art to provide a full-tab soft-package laminated battery with stable contact and easy mass production, so as to improve the cell grouping efficiency and reliability.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a full-tab soft-package laminated battery, in which a positive conductive layer outside a positive encapsulation film is electrically connected to a positive electrode of a battery cell, a negative conductive layer outside a negative encapsulation film is electrically connected to a negative electrode of the battery cell, so that the battery is wholly charged, and two sides of the battery are respectively used as the positive electrode and the negative electrode, so that space can be saved during grouping, and the grouping efficiency and the connection reliability and stability of the battery cell can be improved; therefore, the problems of poor contact and inconvenience for long-term stable operation of the battery in the prior art are solved.
In order to achieve the above object, an embodiment of the present invention provides a full-tab soft-package laminated battery, including a battery cell, a positive electrode package film and a negative electrode package film, where the positive electrode package film and the negative electrode package film wrap the battery cell, edges of the positive electrode package film and the negative electrode package film are sealed, the positive electrode package film includes a positive electrode conductive layer, and the positive electrode conductive layer is electrically connected to a positive electrode of the battery cell and is located on a surface of the positive electrode package film away from the battery cell; the negative electrode packaging film comprises a negative electrode conducting layer, the negative electrode conducting layer is electrically connected with the negative electrode of the battery cell and is positioned on one surface, far away from the battery cell, of the negative electrode packaging film.
Preferably, the positive electrode conductive layer is an aluminum foil layer.
Preferably, the positive electrode encapsulating film further comprises a first PP layer, the first PP layer is located on one surface close to the battery cell, and a first glue layer is arranged between the first PP layer and the aluminum foil layer.
Preferably, the thickness of the first PP layer is 0.03mm to 0.10mm, the thickness of the first glue layer is 0.003mm to 0.015mm, and the thickness of the aluminum foil layer is 0.01mm to 0.07 mm.
Preferably, the negative electrode conductive layer is a copper foil layer or a nickel foil layer.
Preferably, the negative electrode packaging film further comprises a second PP layer, the second PP layer is located on one surface close to the battery core, and a second glue layer is arranged between the second PP layer and the copper foil layer or the nickel foil layer.
Preferably, the thickness of the second PP layer is 0.03mm to 0.10mm, the thickness of the second glue layer is 0.003mm to 0.015mm, and the thickness of the copper foil layer or the nickel foil layer is 0.01mm to 0.07 mm.
Preferably, the edge sealing pressure of the anode encapsulating film and the cathode encapsulating film is 0.2-1.0MPa, the time is 2-6s, and the temperature is 170-210 ℃.
Preferably, the battery core comprises at least one positive plate, at least one negative plate and a diaphragm positioned between the positive plate and the negative plate.
Preferably, the positive plate comprises a positive tab and a positive coating area, and the negative plate comprises a negative tab and a negative coating area; and the positive electrode lug and the negative electrode lug are respectively connected with the positive electrode conducting layer and the negative electrode conducting layer in a welding manner.
The utility model has the beneficial effects that:
1. according to the utility model, the positive electrode conducting layer on one side of the positive electrode packaging film is electrically connected with the positive electrode of the battery cell, the negative electrode conducting layer on one side of the negative electrode packaging film is electrically connected with the negative electrode of the battery cell, so that the battery is integrally electrified, and the two sides of the battery are respectively used as the positive electrode and the negative electrode, so that space can be saved during grouping, and the grouping efficiency and the connection reliability and stability of the battery cells can be improved. Meanwhile, the utility model has the characteristics of strong deep drawing capability, simple manufacturing process and easy mass production.
2. According to the utility model, the foil layer, the glue layer and the PP layer are sequentially arranged on the positive electrode packaging film and the negative electrode packaging film from outside to inside, compared with the prior art that the outer nylon layer is removed, the conductivity of two sides of the battery is ensured, and the battery cell grouping efficiency and the connection reliability and stability are improved.
Furthermore, the thickness of the foil layer, the glue layer and the PP layer of the positive and negative electrode packaging films is limited, and the thickness is obtained by comparing statistical data through n times of experiments, so that the grouping efficiency and the connection reliability and stability of the battery cells are further improved, and the integral energy density of the battery pack is improved.
Drawings
The following drawings are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this application, and are provided for illustrative purposes only and are not intended to limit the scope of the utility model. In the drawings:
fig. 1 is a schematic cross-sectional structural view of a full-tab soft-package laminated battery in an embodiment of the present application;
fig. 2 is a schematic cross-sectional structural view of a positive electrode encapsulation film in an embodiment of the present application;
fig. 3 is a schematic cross-sectional structural view of a negative electrode encapsulation film in an embodiment of the present application;
fig. 4 is a schematic cross-sectional structural view of a cell structure in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a positive plate in the embodiment of the present application;
fig. 6 is a schematic structural diagram of a negative electrode sheet in the embodiment of the present application.
Reference numerals:
1. an electric core; 11. a positive plate; 112. a positive electrode coating region; 113. a positive electrode tab; 12. a negative plate; 122. a negative electrode coating region; 123. a negative electrode tab; 13. a diaphragm; 2. a positive electrode encapsulation film; 21. a positive electrode conductive layer; 22. a first glue layer; 23. a first PP layer; 3. a negative electrode encapsulating film; 31. a negative electrode conductive layer; 32. a second glue layer; 33. a second PP layer; 4. a positive electrode; 5. a negative electrode; 6. and (7) welding points.
Detailed Description
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
It should be noted that, unless the directions indicated are defined separately, the directions of the outside, the inside, etc. referred to herein are based on the directions of the outside, the inside, etc. shown in fig. 1 of the embodiment of the present application, and if the specific posture is changed, the directional indication is changed accordingly. The terms "plurality" and "a plurality" mean two or more, and when used herein in conjunction, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Further, in the various embodiments of the present disclosure, the same or similar reference numerals denote the same or similar components.
In the present invention, unless otherwise expressly specified or limited, the terms "electrically connected," "fixed," and the like are to be construed broadly, e.g., "fixed" may be fixedly connected, detachably connected, or integral, unless otherwise expressly limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the scope of the present invention as claimed.
Example one
As shown in fig. 1, the full-tab soft-package laminated battery in this embodiment includes a battery cell 1, a positive electrode packaging film 2, and a negative electrode packaging film 3, where the edges of the positive electrode packaging film 2 and the negative electrode packaging film 3 are sealed and the battery cell 1 is wrapped. As shown in fig. 2, the positive electrode encapsulation film 2 in this embodiment includes three layers, namely a positive electrode conductive layer 21, a first PP layer 23, and a first glue layer 22 located between the first PP layer 23 and the positive electrode conductive layer 21; when the battery core is wrapped, the positive conductive layer 21 is positioned on the outer layer, and the first PP layer 23 is positioned on the inner layer; the positive conductive layer 21 is electrically connected to the positive electrode 4 of the battery cell 1, preferably, but not limited to, an ultrasonic welding connection. Similarly, referring to fig. 3, the negative electrode encapsulation film 3 in the present embodiment includes three layers, namely a negative electrode conductive layer 31, a second PP layer 33, and a second glue layer 32 located between the second PP layer 33 and the negative electrode conductive layer 31; during packaging, the negative conductive layer 31 is positioned on the outer layer, and the second PP layer 33 is positioned on the inner layer; the negative conductive layer 21 is electrically connected to the negative electrode 5 of the battery cell 1, preferably, but not limited to, by ultrasonic welding, and final welding is performed by the welding spot 6.
Utilize the technical scheme of this embodiment, through the anodal conducting layer of anodal encapsulated film one side and the anodal electric connection of electric core, the negative pole conducting layer of negative pole encapsulated film one side and the negative pole electric connection of electric core make the two sides of battery regard as positive pole and negative pole respectively, have increased the area of interconnect contact, make the contact firm, do benefit to the permanent steady operation of battery. Moreover, a plurality of batteries superpose in proper order and form unitized battery package together, and then save space when uniting, improve the reliable stability of electric core group efficiency and connection, improve the holistic energy density of battery package. Meanwhile, the soft-package laminated battery in the embodiment has the characteristics of strong deep drawing capability, simple manufacturing process and easiness in mass production.
As a preferred embodiment, as shown in fig. 4, the battery cell 1 in this embodiment includes at least one positive electrode tab 11, at least one negative electrode tab 12, and a separator 13 located between the positive electrode tab 11 and the negative electrode tab 12. Further, as shown in fig. 5 and 6, the positive electrode sheet 11 in the present embodiment includes a positive electrode tab 113 and a positive electrode coating region 112, and the negative electrode sheet 12 includes a negative electrode tab 123 and a negative electrode coating region 122; as shown in fig. 1, the positive electrode and the negative electrode of the soft package laminated battery in this embodiment are respectively located at two sides of the battery core 1, a part of the packaged positive electrode 4 and a part of the packaged negative electrode 5 are exposed, and the exposed tabs are connected with the insulating tape, the positive electrode packaging film, and the negative electrode packaging film in a bending manner. Specifically, the exposed tab of the positive electrode is bent towards one side of the positive electrode packaging film after packaging, and is welded with the positive electrode packaging film through laser welding, the exposed tab of the negative electrode is bent towards one side of the negative electrode packaging film, and is welded with the negative electrode packaging film through laser welding, and then the tab is bent for the second time, and an insulating adhesive tape is pasted at the bent position, so that the connection contact is firmer, and the long-term operation and the stable reliability of the battery are improved.
Specifically, as shown in fig. 2 and 3, the positive electrode encapsulating film 2 in the present embodiment includes an aluminum foil layer (positive electrode conductive layer 21), a first PP layer 23, and a first glue layer 22; wherein the thickness of the aluminum foil layer is 0.04mm, the thickness of the first PP layer 23 is 0.06mm, and the thickness of the first glue layer 22 is 0.009 mm; the negative electrode packaging film 3 comprises a copper foil layer (a negative electrode conducting layer 31), a second PP layer 33 and a second glue layer 32, wherein the copper foil layer is 0.04mm thick, the second PP layer 33 is 0.06mm thick, and the second glue layer 32 is 0.009mm thick; the edge sealing pressure of the anode packaging film 2 and the cathode packaging film 3 is 0.6MPa, the time is 4s, and the temperature is 190 ℃.
Example two
The difference between this embodiment and the embodiment is that the thickness of the three layers of the positive electrode sealing film 2 and the negative electrode sealing film 3 and the setting of the sealing pressure at the edge are different. In this embodiment, the thickness of the aluminum foil layer is 0.01mm, the thickness of the first PP layer 23 is 0.03mm, the thickness of the first glue layer 22 is 0.003mm, the thickness of the copper foil layer is 0.01mm, the thickness of the second PP layer 33 is 0.03mm, and the thickness of the second glue layer 32 is 0.003 mm; the edge sealing pressure of the anode packaging film 2 and the cathode packaging film 3 is 0.2MPa, the time is 2s, and the temperature is 170 ℃.
EXAMPLE III
The difference between this embodiment and the first and second embodiments is that the thickness of the three layers of the positive electrode sealing film 2 and the negative electrode sealing film 3 and the setting of the sealing pressure at the edges are different. In the embodiment, the thickness of the aluminum foil layer is 0.07mm, the thickness of the first PP layer 23 is 0.1mm, the thickness of the first glue layer 22 is 0.015mm, the thickness of the copper foil layer is 0.07mm, the thickness of the second PP layer 33 is 0.1mm, and the thickness of the second glue layer 32 is 0.015 mm; the edge sealing pressure of the anode packaging film 2 and the cathode packaging film 3 is 1.0MPa, the time is 6s, and the temperature is 210 ℃.
Example four
The difference between the present embodiment and the first, second, and third embodiments is that the negative conductive layer of the negative encapsulation film is a nickel foil layer.
While the above description shows and describes the preferred embodiments of the application, it is to be understood, as noted above, that the application is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the subject matter disclosed above, as determined by the teachings or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. A full-lug soft-package laminated battery comprises a battery core, a positive electrode packaging film and a negative electrode packaging film, wherein the battery core is wrapped by the positive electrode packaging film and the negative electrode packaging film, the edges of the positive electrode packaging film and the negative electrode packaging film are sealed, and the full-lug soft-package laminated battery is characterized in that,
the positive electrode packaging film comprises a positive electrode conducting layer, and the positive electrode conducting layer is electrically connected with the positive electrode of the battery cell and is positioned on one surface of the positive electrode packaging film, which is far away from the battery cell;
the negative electrode packaging film comprises a negative electrode conducting layer, the negative electrode conducting layer is electrically connected with the negative electrode of the battery cell and is positioned on one surface, far away from the battery cell, of the negative electrode packaging film.
2. The full tab pouch laminate battery of claim 1 wherein the positive conductive layer is an aluminum foil layer.
3. The full-tab soft-packaging laminated battery according to claim 2, wherein the positive electrode packaging film further comprises a first PP layer, the first PP layer is located on one surface of the positive electrode packaging film close to the battery cell, and a first glue layer is arranged between the first PP layer and the aluminum foil layer.
4. The full-tab laminate battery of claim 3, wherein the first PP layer has a thickness of 0.03mm to 0.10mm, the first glue layer has a thickness of 0.003mm to 0.015mm, and the aluminum foil layer has a thickness of 0.01mm to 0.07 mm.
5. The full tab laminate battery of claim 1 wherein the negative conductive layer is a copper foil layer or a nickel foil layer.
6. The full-tab soft-package laminated battery according to claim 5, wherein the negative electrode packaging film further comprises a second PP layer, the second PP layer is located on one surface of the negative electrode packaging film close to the battery cell, and a second glue layer is arranged between the second PP layer and the copper foil layer or the nickel foil layer.
7. The full tab laminate battery of claim 6 wherein the second PP layer has a thickness of 0.03mm to 0.10mm, the second glue layer has a thickness of 0.003mm to 0.015mm, and the copper or nickel foil layer has a thickness of 0.01mm to 0.07 mm.
8. The full-tab soft-package laminated battery according to claim 1, wherein: the edge sealing pressure of the anode packaging film and the cathode packaging film is 0.2-1.0MPa, the time is 2-6s, and the temperature is 170-210 ℃.
9. The full-tab soft-pack laminated battery according to claim 1, wherein the battery cell comprises at least one positive plate, at least one negative plate and a separator located between the positive plate and the negative plate.
10. The full tab soft pack laminate battery of claim 9, wherein the positive tab comprises a positive tab and a positive coated area, and the negative tab comprises a negative tab and a negative coated area; and the positive electrode lug and the negative electrode lug are respectively connected with the positive electrode conducting layer and the negative electrode conducting layer in a welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403892.8U CN215815995U (en) | 2021-09-30 | 2021-09-30 | Full-tab soft-package laminated battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122403892.8U CN215815995U (en) | 2021-09-30 | 2021-09-30 | Full-tab soft-package laminated battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215815995U true CN215815995U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122403892.8U Active CN215815995U (en) | 2021-09-30 | 2021-09-30 | Full-tab soft-package laminated battery |
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| Country | Link |
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| CN (1) | CN215815995U (en) |
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- 2021-09-30 CN CN202122403892.8U patent/CN215815995U/en active Active
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