CN114006092A - Secondary battery aluminum-plastic film and secondary battery - Google Patents
Secondary battery aluminum-plastic film and secondary battery Download PDFInfo
- Publication number
- CN114006092A CN114006092A CN202111279433.1A CN202111279433A CN114006092A CN 114006092 A CN114006092 A CN 114006092A CN 202111279433 A CN202111279433 A CN 202111279433A CN 114006092 A CN114006092 A CN 114006092A
- Authority
- CN
- China
- Prior art keywords
- secondary battery
- layer
- plastic film
- aluminum
- film according
- 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.)
- Pending
Links
- 239000002985 plastic film Substances 0.000 title claims abstract description 39
- 229920006255 plastic film Polymers 0.000 title claims abstract description 39
- 239000010410 layer Substances 0.000 claims abstract description 55
- 239000012790 adhesive layer Substances 0.000 claims abstract description 9
- 239000012793 heat-sealing layer Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 22
- 239000011888 foil Substances 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 238000004080 punching Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
-
- 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
- H01M10/04—Construction or manufacture in general
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The application relates to the technical field of batteries and discloses a secondary battery aluminum-plastic film and a secondary battery. The secondary battery aluminum-plastic film comprises an outer protection layer, an intermediate layer and a heat sealing layer which are sequentially laminated, wherein the intermediate layer is respectively bonded with the outer protection layer and the heat sealing layer through bonding layers; the intermediate layer and the adhesive layer are provided on surfaces thereof facing each other with protrusions, respectively. The secondary battery aluminum-plastic film has better cohesiveness and mechanical consistency, so that the pit punching depth of the aluminum-plastic film is improved.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a secondary battery aluminum-plastic film and a secondary battery.
Background
The aluminum-plastic film is mainly used as a packaging material of the soft package battery, and the thickness of the battery cell is limited due to the fact that the dissimilarity and the mechanical property inconsistency of materials of all layers of the aluminum-plastic film, so that the design and the energy density of the battery cell are limited, and the cost of the soft package battery pack is greatly increased. At present, the main production process of the aluminum-plastic film is a dry method and a thermal method, wherein the dry method aluminum-plastic film is formed by directly gluing and pressing an aluminum foil and a casting polypropylene film (CPP film), the thermal method is formed by bonding the aluminum foil and the CPP film by a modified polypropylene material (MPP material), then slowly heating and thermally pressing, and in order to ensure the performance of the battery, the depth of a punched hole of the aluminum-plastic film is limited to a certain extent.
Disclosure of Invention
The application aims to provide a secondary battery aluminum-plastic film and a secondary battery, and the secondary battery aluminum-plastic film has better cohesiveness and mechanical consistency, so that the pit punching depth of the aluminum-plastic film is improved.
In order to solve the above technical problem, a first aspect of the present application provides a secondary battery aluminum plastic film, including: the heat-sealing film comprises an outer protection layer, a middle layer and a heat-sealing layer which are sequentially stacked, wherein the middle layer is respectively bonded with the outer protection layer and the heat-sealing layer through bonding layers; and the surfaces of the intermediate layer and the adhesive layer which face each other are provided with projections, respectively.
In an embodiment of the first aspect, the outer protective layer and the adhesive layer adjacent thereto are provided with projections on their mutually opposite surfaces, and/or the heat-seal layer and the adhesive layer adjacent thereto are provided with projections on their mutually opposite surfaces.
In an embodiment of the first aspect, a cross section of the protrusion in the thickness direction is saw-toothed or rectangular.
In an embodiment of the first aspect, the protrusions are in a shape of convex stripes and are arranged at intervals along a direction intersecting with an extending direction of the protrusions.
In an embodiment of the first aspect, the projections are spaced apart by a distance 1 to 3 times a cross-sectional width of the projections in the thickness direction.
In an embodiment of the first aspect, the cross-sectional width of the protrusion is 0.1mm to 1 mm.
In an embodiment of the first aspect, the intermediate layer has a thickness of more than 60 μm.
In an embodiment of the first aspect, the intermediate layer is an aluminium foil layer.
In an embodiment of the first aspect, the heat seal layer is a PP or CPP film.
A second aspect of the present application provides a secondary battery comprising the above secondary battery aluminum plastic film.
Compared with the prior art, the secondary battery aluminum-plastic film has the advantages that the mutually-opposite protruding portions are arranged between the layers of the aluminum-plastic film, the cohesiveness and the mechanical consistency between the layers are improved, the punching depth of the aluminum-plastic film is improved, the thickness and the energy density of a soft package battery can be improved, and the cost of the soft package battery is reduced.
Drawings
FIG. 1 is a schematic exploded view of an aluminum plastic film according to a first embodiment of the present application;
fig. 2 is an exploded schematic view of an aluminum plastic film according to some embodiments of the present application.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings so that those skilled in the art to which the present application pertains can easily carry out the present application. The present application may be embodied in many different forms and is not limited to the embodiments described herein.
In order to clearly explain the present application, components that are not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.
Throughout the specification, when a device is referred to as being "connected" to another device, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another element interposed therebetween. In addition, when a device "includes" a certain component, unless otherwise stated, the device does not exclude other components, but may include other components.
When a device is said to be "on" another device, this may be directly on the other device, but may also be accompanied by other devices in between. When a device is said to be "directly on" another device, there are no other devices in between.
Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are described. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" include plural forms as long as the words do not expressly indicate a contrary meaning. The term "comprises/comprising" when used in this specification is taken to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.
Terms representing relative spatial terms such as "lower", "upper", and the like may be used to more readily describe one element's relationship to another element as illustrated in the figures. Such terms are intended to include not only the meanings indicated in the drawings, but also other meanings or operations of the device in use. For example, if the device in the figures is turned over, elements described as "below" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "under" and "beneath" all include above and below. The device may be rotated 90 or other angles and the terminology representing relative space is also to be interpreted accordingly.
Although not defined differently, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms defined in commonly used dictionaries are to be additionally interpreted as having meanings consistent with those of related art documents and the contents of the present prompts, and must not be excessively interpreted as having ideal or very formulaic meanings unless defined.
The secondary battery according to the embodiment of the present invention includes various kinds of secondary batteries, and the secondary battery according to the embodiment of the present invention is described by taking a lithium ion battery as an example, and may actually be another type of secondary battery. The first embodiment of the present application is described below with reference to the drawings, and as shown in fig. 1, the aluminum plastic film of the lithium ion battery of the present embodiment includes an outer protective layer 1, an intermediate layer 2 and a heat seal layer 3, which are sequentially stacked, and the intermediate layer 2 is bonded to the outer protective layer 1 and the heat seal layer 3 through a bonding layer 4. The surfaces of the intermediate layer 2 and the adhesive layer 4 facing each other are provided with projections 5, respectively. Specifically, the outer protection layer 1 may be a nylon layer, and the outer protection layer 1 may protect the intermediate layer 2, prevent air from penetrating, and maintain the environment inside the battery cell. The middle layer 2 has certain thickness and strength, prevents water vapor from permeating and prevents the electric core from being damaged by the outside, and can adopt an aluminum foil as the middle layer, the current aluminum-plastic film process and the thickness of the aluminum foil layer are generally 40 μm. The heat-seal layer 3 is used for sealing and preventing the intermediate aluminum foil layer from contacting the electrolyte, and a PP or CPP film can be used. The protrusions 5 are rib-shaped and are spaced apart in a direction intersecting the direction in which the protrusions 5 extend, for example, in a direction perpendicular to the direction in which the ribs extend, but it will be appreciated that they may be spaced apart in other directions intersecting the direction in which the ribs extend. The distance of spacing of the projections 5 is 1 to 3 times the width of the cross section of the projections 5 in the thickness direction. The cross-sectional width of the boss 5 is 0.1mm to 1 mm. The cross section of the boss 5 in the thickness direction is zigzag, but may be in other shapes such as rectangular or wavy. The intermediate layer 2 and the adhesive layer 4 are cured by a microwave process. The microwave process adopts a PLC control scheme, the output power is accurately controlled to be 50W-600W, the heating time is 20s-100s, and the intermittent time is 5s-50s, and the microwave process treatment set by the parameters can enable each layer to achieve a better curing effect.
Be provided with bellying 5 on the relative surface each other of intermediate level 2 and tie coat 4 respectively, improved roughness for the peel strength of intermediate level 2 and tie coat 4 improves greatly, can promote the cohesiveness and the mechanics uniformity of plastic-aluminum membrane from this, and then has improved and has dashed the hole depth degree, can improve laminate polymer battery thickness and energy density from this, reduces laminate polymer battery's cost. The peel strength of the intermediate layer 2 and the bonding layer 4 can be increased by 10-30% in some tests, thereby increasing the depth of the punching pit of the aluminum plastic film from 8mm to less than 9.5 mm.
In some embodiments, as shown in fig. 2, the protection layer 1 and the bonding layer 4 adjacent to the protection layer are provided with the protrusions 5 on the surfaces opposite to each other, and/or the heat sealing layer 3 and the bonding layer 4 adjacent to the heat sealing layer are provided with the protrusions 5 on the surfaces opposite to each other, so that the adhesion and mechanical consistency of the aluminum plastic film of the battery can be further improved, the punching depth can be improved, the thickness and energy density of the pouch battery can be improved, and the cost of the pouch battery can be reduced. In some embodiments, the thickness of the intermediate layer is increased from 40 μm to more than 60 μm, so that the punching depth of the aluminum plastic film can be further increased, the thickness and energy density of the soft package battery can be increased, and the cost of the soft package battery can be reduced.
A second embodiment of the present application relates to a secondary battery including the above aluminum plastic film. In some embodiments, the secondary battery comprises a lithium ion battery. The aluminum-plastic film for the secondary battery improves the cohesiveness and the mechanical consistency of the aluminum-plastic film of the battery, so that the punching depth is improved, the thickness and the energy density of a soft package battery can be improved, and the cost of the soft package battery is reduced.
The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.
Claims (10)
1. A secondary battery aluminum-plastic film, comprising: the heat-sealing film comprises an outer protection layer, a middle layer and a heat-sealing layer which are sequentially stacked, wherein the middle layer is respectively bonded with the outer protection layer and the heat-sealing layer through bonding layers; and the surfaces of the intermediate layer and the adhesive layer which face each other are provided with projections, respectively.
2. The secondary battery aluminum plastic film according to claim 1, wherein the outer protective layer and the adhesive layer adjacent thereto are provided with protrusions on surfaces thereof opposite to each other, and/or the heat seal layer and the adhesive layer adjacent thereto are provided with protrusions on surfaces thereof opposite to each other.
3. The secondary battery aluminum plastic film according to claim 1, wherein a cross section of the protrusion in a thickness direction is zigzag or rectangular.
4. The aluminum-plastic composite film for the secondary battery as recited in claim 1, wherein the protrusions are in the shape of convex stripes and are arranged at intervals in a direction intersecting with an extending direction of the protrusions.
5. The secondary battery aluminum plastic film according to claim 4, wherein the protrusion is spaced apart by a distance 1 to 3 times a sectional width of the protrusion in a thickness direction.
6. The secondary battery aluminum plastic film according to claim 1, wherein the sectional width of the convex portion is 0.1mm to 1 mm.
7. The secondary battery aluminum plastic film according to claim 1, wherein the thickness of the intermediate layer is more than 60 μm.
8. The secondary battery aluminum-plastic film according to claim 1, wherein the intermediate layer is an aluminum foil layer.
9. The aluminum plastic film for the secondary battery as recited in claim 1, wherein the heat seal layer is a PP or CPP film.
10. A secondary battery characterized by comprising the aluminum plastic film according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111279433.1A CN114006092A (en) | 2021-11-01 | 2021-11-01 | Secondary battery aluminum-plastic film and secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111279433.1A CN114006092A (en) | 2021-11-01 | 2021-11-01 | Secondary battery aluminum-plastic film and secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114006092A true CN114006092A (en) | 2022-02-01 |
Family
ID=79925912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111279433.1A Pending CN114006092A (en) | 2021-11-01 | 2021-11-01 | Secondary battery aluminum-plastic film and secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114006092A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006066113A (en) * | 2004-08-25 | 2006-03-09 | Toppan Printing Co Ltd | Laminating material and outer packaging for battery using laminating material |
| JP2011076887A (en) * | 2009-09-30 | 2011-04-14 | Toppan Printing Co Ltd | Packaging material for lithium ion battery |
| CN204441342U (en) * | 2015-04-13 | 2015-07-01 | 宁德新能源科技有限公司 | The aluminum plastic film of lithium ion battery |
| CN205028932U (en) * | 2015-10-10 | 2016-02-10 | 东莞市卓越新材料科技有限公司 | Membrane is moulded to crude steel of punctiform and lithium ion battery who makes thereof |
| CN105336883A (en) * | 2015-10-19 | 2016-02-17 | 宁德新能源科技有限公司 | Lithium ion battery flexible packaging material, and lithium ion battery prepared from lithium ion battery flexible packaging material |
| CN109228575A (en) * | 2018-10-30 | 2019-01-18 | 上海恩捷新材料科技有限公司 | A kind of plastic-aluminum membrane structure |
| CN208411002U (en) * | 2018-03-31 | 2019-01-22 | 广东天劲新能源科技股份有限公司 | A kind of lithium ion battery aluminum plastic film |
| CN109449319A (en) * | 2018-10-24 | 2019-03-08 | 无锡恩捷新材料科技有限公司 | A kind of soft bag lithium ionic cell aluminum plastic film |
| CN111746067A (en) * | 2020-07-07 | 2020-10-09 | 江苏谷田新材料科技有限公司 | Aluminum-plastic film treatment process, aluminum-plastic film structure and formula of aluminum foil surface treatment liquid |
| CN212323082U (en) * | 2020-06-30 | 2021-01-08 | 上海卡耐新能源有限公司 | Laminate polymer battery packaging structure and laminate polymer battery |
-
2021
- 2021-11-01 CN CN202111279433.1A patent/CN114006092A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006066113A (en) * | 2004-08-25 | 2006-03-09 | Toppan Printing Co Ltd | Laminating material and outer packaging for battery using laminating material |
| JP2011076887A (en) * | 2009-09-30 | 2011-04-14 | Toppan Printing Co Ltd | Packaging material for lithium ion battery |
| CN204441342U (en) * | 2015-04-13 | 2015-07-01 | 宁德新能源科技有限公司 | The aluminum plastic film of lithium ion battery |
| CN205028932U (en) * | 2015-10-10 | 2016-02-10 | 东莞市卓越新材料科技有限公司 | Membrane is moulded to crude steel of punctiform and lithium ion battery who makes thereof |
| CN105336883A (en) * | 2015-10-19 | 2016-02-17 | 宁德新能源科技有限公司 | Lithium ion battery flexible packaging material, and lithium ion battery prepared from lithium ion battery flexible packaging material |
| CN208411002U (en) * | 2018-03-31 | 2019-01-22 | 广东天劲新能源科技股份有限公司 | A kind of lithium ion battery aluminum plastic film |
| CN109449319A (en) * | 2018-10-24 | 2019-03-08 | 无锡恩捷新材料科技有限公司 | A kind of soft bag lithium ionic cell aluminum plastic film |
| CN109228575A (en) * | 2018-10-30 | 2019-01-18 | 上海恩捷新材料科技有限公司 | A kind of plastic-aluminum membrane structure |
| CN212323082U (en) * | 2020-06-30 | 2021-01-08 | 上海卡耐新能源有限公司 | Laminate polymer battery packaging structure and laminate polymer battery |
| CN111746067A (en) * | 2020-07-07 | 2020-10-09 | 江苏谷田新材料科技有限公司 | Aluminum-plastic film treatment process, aluminum-plastic film structure and formula of aluminum foil surface treatment liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0136040B1 (en) | Bipolar battery and assembling method | |
| US7736801B2 (en) | Film covered electric device and method of manufacturing the same | |
| KR100879893B1 (en) | Secondary Battery Having Safety-improved Sealing Portion | |
| CA2368006C (en) | Heat-sealing machine, heat-sealing method, embossing method, work pressing machine and workpiece | |
| EP3331083B1 (en) | Method for manufacturing secondary battery and method for manufacturing electrode assembly | |
| KR101264430B1 (en) | Pouch for secondary battery | |
| KR101229228B1 (en) | Secondary Battery with Improved Moisture Barrier | |
| US11024908B2 (en) | Electrochemical device and method for manufacturing same | |
| EP1085977A4 (en) | Packaging material for hermetically sealed batteries | |
| KR100910624B1 (en) | Double-Typed Secondary Battery | |
| JP2006351361A (en) | Film armor type power storage device | |
| KR20230163522A (en) | Battery housing and battery | |
| JP4694665B2 (en) | Lithium secondary battery case | |
| KR102268400B1 (en) | Secondary battery and sealing device for the same and sealing methode for the same | |
| KR102103899B1 (en) | Secondary battery and manufactury methode for the same | |
| CN114006092A (en) | Secondary battery aluminum-plastic film and secondary battery | |
| JP2015232957A (en) | Jacket member with cooling fin for electrochemical device, and electrochemical device | |
| KR101546002B1 (en) | electrochemical energy storage device | |
| US10629945B2 (en) | Method for manufacturing secondary battery and method for manufacturing electrode assembly | |
| JP2001357824A (en) | Sealed battery | |
| US20220393285A1 (en) | Battery Module and Battery Pack Including the Same | |
| KR20230032880A (en) | Pouch-type secondary battery with excellent insulation and heat dissipation characteristics | |
| JP7366769B2 (en) | Power storage device | |
| KR102322222B1 (en) | Pouch-Type Battery Case Comprising Metal Layer Having Concavo-convex Structure Surface | |
| JP2006120419A (en) | Film-armored power storage device and case for the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220201 |
|
| RJ01 | Rejection of invention patent application after publication |