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1. WO2022118504 - LDH-LIKE COMPOUND SEPARATOR AND ZINC SECONDARY BATTERY

Publication Number WO/2022/118504
Publication Date 09.06.2022
International Application No. PCT/JP2021/030376
International Filing Date 19.08.2021
IPC
H01M 12/08 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
12Hybrid cells; Manufacture thereof
08composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
H01M 10/30 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
24Alkaline accumulators
30Nickel accumulators
H01M 10/32 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
24Alkaline accumulators
32Silver accumulators
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 50/423 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
423Polyamide resins
CPC
H01M 10/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
24Alkaline accumulators
30Nickel accumulators
H01M 10/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
24Alkaline accumulators
32Silver accumulators
H01M 12/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
12Hybrid cells; Manufacture thereof
08composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
H01M 50/414
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
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 50/423
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
423Polyamide resins
Applicants
  • 日本碍子株式会社 NGK INSULATORS, LTD. [JP]/[JP]
Inventors
  • 大河内 聡太 OKOCHI Sota
  • 横山 昌平 YOKOYAMA Shohei
  • 犬飼 直子 INUKAI Naoko
  • 山本 翔 YAMAMOTO Sho
Agents
  • 高村 雅晴 TAKAMURA Masaharu
  • 長谷川 悠 HASEGAWA Yu
  • 河内 亮 KOUCHI Ryo
Priority Data
2020-19992401.12.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) LDH-LIKE COMPOUND SEPARATOR AND ZINC SECONDARY BATTERY
(FR) SÉPARATEUR COMPOSITE DE TYPE LDH ET BATTERIE SECONDAIRE AU ZINC
(JA) LDH様化合物セパレータ及び亜鉛二次電池
Abstract
(EN) The present invention provides a hydroxide ion conductive separator which has excellent alkali resistance and is capable of more effectively suppressing short circuiting caused by zinc dendrite, thereby being superior to LDH separators. This LDH-like compound separator is used in a zinc secondary battery, and comprises a porous base material that is formed from a polymer material, and a layered double hydroxide-like (LDH-like) compound that fills up the pores of the porous base material. This LDH-like compound separator internally comprises a dendrite buffering layer, and the dendrite buffering layer is at least one layer that is selected from the group consisting of (i) an internal porous layer wherein many pores of the porous base material are free from or deficient in the LDH-like compound, (ii) a separable interface layer wherein two adjacent layers, which constitute a part of this LDH-like compound separator, are in contact with each other in a separable manner, and (iii) an internal space layer that is formed by arranging two adjacent layers, which constitute a part of this LDH-like compound separator, at a distance from each other, wherein the LDH-like compound and the porous base material are not present.
(FR) La présente invention concerne un séparateur conducteur d'ions hydroxyde qui présente une excellente résistance aux alcalis et qui est capable de supprimer plus efficacement un court-circuit provoqué par une dendrite de zinc, ainsi étant supérieure aux séparateurs LDH. Ce séparateur composite de type LDH est utilisé dans une batterie secondaire au zinc, et comprend un matériau de base poreux qui est formé à partir d'un matériau polymère, et un composé de type hydroxyde double en couches (LDH) qui remplit les pores du matériau de base poreux. Ce séparateur composite de type LDH comprend intérieurement une couche tampon de dendrites, et la couche tampon de dendrites est au moins une couche qui est choisie dans le groupe constitué par (i) une couche poreuse interne dans laquelle de nombreux pores du matériau de base poreux sont exempts ou déficients dans le composé de type LDH, (ii) une couche d'interface séparable dans laquelle deux couches adjacentes, qui constituent une partie de ce séparateur composite de type LDH, sont en contact l'une avec l'autre de manière séparable, et (iii) une couche d'espace interne qui est formée par l'agencement de deux couches adjacentes, qui constituent une partie de ce séparateur composite de type LDH, à une certaine distance l'une de l'autre, le composé de type LDH et le matériau de base poreux ne sont pas présents.
(JA) 耐アルカリ性に優れ、かつ、亜鉛デンドライトに起因する短絡をより一層効果的に抑制可能な、LDHセパレータよりも優れた水酸化物イオン伝導セパレータが提供される。このLDH様化合物セパレータは、亜鉛二次電池用のものであり、高分子材料製の多孔質基材と、多孔質基材の孔を塞ぐ層状複水酸化物(LDH)様化合物とを含む。LDH様化合物セパレータはその内部にデンドライト緩衝層を有し、該デンドライト緩衝層が、(i)LDH様化合物が無いか又は欠乏している多孔質基材の孔に富んだ内部多孔層、(ii)LDH様化合物セパレータの一部を構成する隣り合う2つの層が剥離可能に接触している剥離性界面層、及び(iii)LDH様化合物セパレータの一部を構成する隣り合う2つの層が離間して形成される、LDH様化合物及び多孔質基材が存在しない内部空間層からなる群から選択される少なくとも1種である。
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