PROPYLENE-BASED MULTILAYER FILM FOR CELL POUCH
Disclosed is a propylene-based multilayer film for a cell pouch, in which, by being mainly used as a sealant layer for a cell pouch, crack generation in an adhesive layer inside the pouch is suppressed even when a battery is exposed to physical, chemical, shock, or electrical stress, and which has e...
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Format | Patent |
Language | English French Korean |
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19.05.2023
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Abstract | Disclosed is a propylene-based multilayer film for a cell pouch, in which, by being mainly used as a sealant layer for a cell pouch, crack generation in an adhesive layer inside the pouch is suppressed even when a battery is exposed to physical, chemical, shock, or electrical stress, and which has excellent formability, an insulating property, and electrolyte resistance. The present invention provides a propylene-based multilayer film having (a) propylene-based binary or tertiary copolymer, (b) amorphous propylene rubber, (c) an amide-based slip agent, (d) an antiblocking agent, and (e) modified polyolefin, the propylene-based multilayer film comprising: a skin layer; a core layer; and a seal layer, wherein the thickness of the seal layer is 10-15% of the thickness of the multilayer film, and the (a) propylene-based binary or terpolymer has formed therein a rubber domain having a size of 3-10% of the thickness of the seal layer.
L'invention concerne un film multicouche à base de propylène pour une poche de cellule, dans lequel, en étant principalement utilisé comme couche d'étanchéité pour une poche de cellule, la génération de fissures dans une couche adhésive à l'intérieur de la poche est supprimée même lorsqu'une batterie est exposée à un stress physique, chimique, électrique ou à un choc, et qui présente une excellente aptitude au formage, une propriété d'isolation et une résistance à l'électrolyte. La présente invention concerne un film multicouche à base de propylène comprenant (a) un copolymère binaire ou tertiaire à base de propylène, (b) un caoutchouc de propylène amorphe, (c) un agent glissant à base d'amide, (d) un agent anti-bloquant, et (e) une polyoléfine modifiée, le film multicouche à base de propylène comprenant : une couche de peau ; une couche centrale ; et une couche d'étanchéité, l'épaisseur de la couche d'étanchéité étant de 10 à 15 % de l'épaisseur du film multicouche, et le (a) copolymère binaire ou terpolymère à base de propylène contenant un domaine de caoutchouc dont la taille représente de 3 à 10 % de l'épaisseur de la couche d'étanchéité.
주로 셀 파우치의 실란트층으로 사용되어 전지가 물리적, 화학적, 충격으로부터 또는 전기적 스트레스에 노출되더라도 파우치 내부 접착층의 크랙 발생이 억제되며, 성형성, 절연성 및 내전해액성이 우수한 폴리프로필렌계 다층 필름이 개시된다. 본 발명은 (a) 프로필렌계 이원 또는 삼원 공중합체, (b) 무정형 프로필렌 고무, (c) 아마이드계 슬립제, (d) 안티블로킹제 및 (e) 변성 폴리올레핀을 포함하는 폴리프로필렌계 다층 필름으로서, 스킨층, 코어층 및 씰층을 포함하되, 상기 씰층 두께는 상기 다층 필름 두께의 10 내지 15%이고, 상기 (a) 프로필렌계 이원 또는 삼원 공중합체는 상기 씰층 두께의 3 내지 10% 크기의 고무 도메인(rubber domain)이 형성된 폴리프로필렌계 다층 필름을 제공한다. |
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AbstractList | Disclosed is a propylene-based multilayer film for a cell pouch, in which, by being mainly used as a sealant layer for a cell pouch, crack generation in an adhesive layer inside the pouch is suppressed even when a battery is exposed to physical, chemical, shock, or electrical stress, and which has excellent formability, an insulating property, and electrolyte resistance. The present invention provides a propylene-based multilayer film having (a) propylene-based binary or tertiary copolymer, (b) amorphous propylene rubber, (c) an amide-based slip agent, (d) an antiblocking agent, and (e) modified polyolefin, the propylene-based multilayer film comprising: a skin layer; a core layer; and a seal layer, wherein the thickness of the seal layer is 10-15% of the thickness of the multilayer film, and the (a) propylene-based binary or terpolymer has formed therein a rubber domain having a size of 3-10% of the thickness of the seal layer.
L'invention concerne un film multicouche à base de propylène pour une poche de cellule, dans lequel, en étant principalement utilisé comme couche d'étanchéité pour une poche de cellule, la génération de fissures dans une couche adhésive à l'intérieur de la poche est supprimée même lorsqu'une batterie est exposée à un stress physique, chimique, électrique ou à un choc, et qui présente une excellente aptitude au formage, une propriété d'isolation et une résistance à l'électrolyte. La présente invention concerne un film multicouche à base de propylène comprenant (a) un copolymère binaire ou tertiaire à base de propylène, (b) un caoutchouc de propylène amorphe, (c) un agent glissant à base d'amide, (d) un agent anti-bloquant, et (e) une polyoléfine modifiée, le film multicouche à base de propylène comprenant : une couche de peau ; une couche centrale ; et une couche d'étanchéité, l'épaisseur de la couche d'étanchéité étant de 10 à 15 % de l'épaisseur du film multicouche, et le (a) copolymère binaire ou terpolymère à base de propylène contenant un domaine de caoutchouc dont la taille représente de 3 à 10 % de l'épaisseur de la couche d'étanchéité.
주로 셀 파우치의 실란트층으로 사용되어 전지가 물리적, 화학적, 충격으로부터 또는 전기적 스트레스에 노출되더라도 파우치 내부 접착층의 크랙 발생이 억제되며, 성형성, 절연성 및 내전해액성이 우수한 폴리프로필렌계 다층 필름이 개시된다. 본 발명은 (a) 프로필렌계 이원 또는 삼원 공중합체, (b) 무정형 프로필렌 고무, (c) 아마이드계 슬립제, (d) 안티블로킹제 및 (e) 변성 폴리올레핀을 포함하는 폴리프로필렌계 다층 필름으로서, 스킨층, 코어층 및 씰층을 포함하되, 상기 씰층 두께는 상기 다층 필름 두께의 10 내지 15%이고, 상기 (a) 프로필렌계 이원 또는 삼원 공중합체는 상기 씰층 두께의 3 내지 10% 크기의 고무 도메인(rubber domain)이 형성된 폴리프로필렌계 다층 필름을 제공한다. |
Author | KIM, Song Ho CHO, Jin Ju BYUN, Ju Yi KIM, Min Kyu |
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DocumentTitleAlternate | FILM MULTICOUCHE À BASE DE PROPYLÈNE POUR POCHE DE CELLULE 셀 파우치용 프로필렌계 다층 필름 |
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Snippet | Disclosed is a propylene-based multilayer film for a cell pouch, in which, by being mainly used as a sealant layer for a cell pouch, crack generation in an... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS ELECTRICITY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TRANSPORTING |
Title | PROPYLENE-BASED MULTILAYER FILM FOR CELL POUCH |
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