Processing

Please wait...

PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 25.01.2022 at 9:00 AM CET
Settings

Settings

Goto Application

1. WO2022004148 - SEPARATOR FOR BATTERIES

Publication Number WO/2022/004148
Publication Date 06.01.2022
International Application No. PCT/JP2021/018344
International Filing Date 14.05.2021
IPC
H01M 50/414 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
411Organic material
414Synthetic resins, e.g. .thermoplastics or thermosetting resins
H01M 50/417 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
411Organic material
414Synthetic resins, e.g. .thermoplastics or thermosetting resins
417Polyolefins
H01M 50/431 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
431Inorganic material
H01M 50/434 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
431Inorganic material
434Ceramics
H01M 50/443 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
443Particulate material
H01M 50/446 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
40Separators; Membranes; Diaphragms; Spacing elements inside cells
409Separators, membranes or diaphragms characterised by the material
446Composite material consisting of a mixture of organic and inorganic materials
Applicants
  • 東レ株式会社 TORAY INDUSTRIES, INC. [JP]/[JP]
Inventors
  • 二宮裕一 NINOMIYA, Hirokazu
  • 越前絹似 ECHIZEN, Kenji
Priority Data
2020-11384301.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) SEPARATOR FOR BATTERIES
(FR) SÉPARATEUR POUR BATTERIES
(JA) 電池用セパレータ
Abstract
(EN) [Problem] The purpose of the present invention is to provide a separator which has excellent heat resistance, while exhibiting improved electrolyte solution pourability during the production of a battery. [Solution] The present invention is a separator for batteries, said separator having a polyolefin porous film and a heat-resistant porous layer that is provided on at least one surface of the porous film, and said separator being characterized in that: the heat-resistant porous layer contains inorganic particles and an organic synthetic resin component; and among the inorganic particles, the number of particles (B) having a particle diameter of 100 nm or less and adhering to the surface of an inorganic particle (A) is 5.0 or less, said inorganic particle (A) having a particle diameter of 0.3 μm or more.
(FR) Le but de la présente invention est de fournir un séparateur qui présente une excellente résistance à la chaleur, tout en présentant une capacité d'écoulement de solution électrolytique améliorée pendant la production d'une batterie. La solution selon l'invention porte sur un séparateur pour batteries, ledit séparateur ayant un film poreux de polyoléfine et une couche poreuse résistante à la chaleur qui est disposée sur au moins une surface du film poreux, et ledit séparateur étant caractérisé en ce que : la couche poreuse résistante à la chaleur contient des particules inorganiques et un composant de résine synthétique organique ; et parmi les particules inorganiques, le nombre de particules (B) ayant un diamètre de particule de 100 nm ou moins et adhérant à la surface d'une particule inorganique (A) est de 5,0 ou moins, ladite particule inorganique (A) ayant un diamètre de particule de 0,3 µm ou plus.
(JA) 【課題】本発明は、耐熱性に優れ、電池製造における電解液注液性が改善されたセパレータの提供を目的とする。 【解決手段】本発明は、ポリオレフィン多孔質膜と、該多孔質膜の少なくとも片面に設けられた耐熱性多孔層とを有する電池用セパレータであって、 前記耐熱性多孔層は、無機粒子と有機合成樹脂成分とを含み、 前記無機粒子のうち、粒子径が0.3μm以上の無機粒子(A)表面に付着している粒子径100nm以下の粒子(B)が5.0個以下であることを特徴とする。
Latest bibliographic data on file with the International Bureau