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1. WO2020116647 - ACID-TYPE SULFONATE GROUP-CONTAINING POLYMER, LIQUID COMPOSITION, SOLID POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE JOINT BODY, SOLID POLYMER FUEL CELL, AND ION EXCHANGE MEMBRANE FOR WATER ELECTROLYSIS

Publication Number WO/2020/116647
Publication Date 11.06.2020
International Application No. PCT/JP2019/047936
International Filing Date 06.12.2019
IPC
C08F 8/12 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
8Chemical modification by after-treatment
12Hydrolysis
C08F 16/30 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
16Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical
12by an ether radical
14Monomers containing only one unsaturated aliphatic radical
30Monomers containing sulfur
H01B 1/06 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
06mainly consisting of other non-metallic substances
H01B 1/12 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
06mainly consisting of other non-metallic substances
12organic substances
H01M 8/10 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
H01M 8/1039 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
1039halogenated, e.g. sulfonated polyvinylidene fluorides
CPC
C08F 16/30
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
16Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
12by an ether radical
14Monomers containing only one unsaturated aliphatic radical
30Monomers containing sulfur
C08F 8/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
8Chemical modification by after-treatment
12Hydrolysis
H01B 1/06
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
06mainly consisting of other non-metallic substances
H01B 1/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
06mainly consisting of other non-metallic substances
12organic substances
H01M 8/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
H01M 8/1039
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
1039halogenated, e.g. sulfonated polyvinylidene fluorides
Applicants
  • AGC株式会社 AGC INC. [JP]/[JP]
Inventors
  • 平居 丈嗣 HIRAI Takeshi
  • 齋藤 貢 SAITO Susumu
  • 渡部 浩行 WATABE Hiroyuki
  • 民辻 慎哉 TAMITSUJI Chikaya
  • 上牟田 大輔 JOMUTA Daisuke
Agents
  • 特許業務法人T.S.パートナーズ T.S. PARTNERS
  • 泉名 謙治 SENMYO Kenji
  • 小川 利春 OGAWA Toshiharu
  • 金 鎭文 KIM Jin-Moon
  • 比企野 健 HIKINO Ken
  • 横井 大一郎 YOKOI Daiichiro
Priority Data
2018-23021307.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ACID-TYPE SULFONATE GROUP-CONTAINING POLYMER, LIQUID COMPOSITION, SOLID POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE JOINT BODY, SOLID POLYMER FUEL CELL, AND ION EXCHANGE MEMBRANE FOR WATER ELECTROLYSIS
(FR) POLYMÈRE COMPRENANT UN GROUPE ACIDE SULFONIQUE DE TYPE ACIDE, COMPOSITION LIQUIDE, FILM ÉLECTROLYTIQUE À POLYMÈRE SOLIDE, CORPS LIÉ MEMBRANE ET ÉLECTRODE, PILE À COMBUSTIBLE DE TYPE À POLYMÈRE SOLIDE, ET MEMBRANE ÉCHANGEUSE D'IONS POUR ÉLECTROLYSE DE L'EAU
(JA) 酸型スルホン酸基含有ポリマー、液状組成物、固体高分子電解質膜、膜電極接合体、固体高分子形燃料電池及び水電解用イオン交換膜
Abstract
(EN)
Provided are: an acid-type sulfonate group-containing polymer that has excellent hydrogen gas barrier properties and hot water resistance and that generates less oligomer during production; a liquid composition and a solid polymer electrolyte membrane including the acid-type sulfonate group-containing polymer; and a membrane electrode joint body and a solid polymer fuel cell provided with the solid polymer electrolyte membrane. This acid-type sulfonate group-containing polymer has a perfluoromonomer unit, has no monomer unit having a halogen atom other than a fluorine atom, and has an acid-type sulfonate group, wherein: the hydrogen gas permeability coefficient under a condition of a temperature of 80°C and a relative humidity of 10% is less than or equal to 2.5×10-9cm3∙cm/(s∙cm2∙cmHg); the mass decrease rate when being immersed in hot water for 24 hours at 120°C is less than or equal to 15 mass%; and the capacity flow rate value of a polymer having a fluorosulfonyl group which is a precursor of a polymer having the acid-type sulfonate group is greater than or equal to 220°C.
(FR)
L'invention fournit un polymère comprenant un groupe acide sulfonique de type acide doté d'excellentes propriétés de barrière à l'hydrogène gazeux et de résistance à la chaleur et présentant une faible quantité d'oligomères générés lors de sa fabrication. L'invention fournit également une composition liquide ainsi qu'un film électrolytique à polymère solide contenant ce polymère, un corps lié membrane et électrode équipé de ce film électrolytique à polymère solide, et une pile à combustible de type à polymère solide. Le polymère comprenant un groupe acide sulfonique de type acide de l'invention possède une unité perfluoro-monomère, ne possède pas d'unité monomère ayant un atome d'halogène autre qu'un atome de fluor, mais possède un groupe acide sulfonique de type acide. En outre, le polymère comprenant un groupe acide sulfonique de type acide de l'invention consiste en un précurseur de polymère possédant ledit groupe acide sulfonique de type acide, lequel précurseur de polymère présente une perméabilité à l'hydrogène gazeux, sous des conditions de température de 80°C et d'humidité relative de 10%, inférieure ou égale à 2,5×10-9cm・cm/(s・cm・cmHg), et un taux de réduction de masse inférieur ou égal à 15% en masse lors d'une immersion pendant 24 heures dans une eau chaude à 120°C. Enfin, le polymère comprenant un groupe acide sulfonique de type acide de l'invention présente une valeur de débit volumétrique de polymère ayant un groupe fluorosulfonyl supérieure ou égale à 220°C.
(JA)
水素ガスバリア性及び耐熱水性に優れ、かつ製造時のオリゴマーの発生量が少ない酸型スルホン酸基含有ポリマー、これを含む液状組成物及び固体高分子電解質膜、固体高分子電解質膜を備えた膜電極接合体及び固体高分子形燃料電池の提供。 ペルフルオロモノマー単位を有し、フッ素原子以外のハロゲン原子を有するモノマー単位を有さず、かつ酸型のスルホン酸基を有するポリマーであり、温度80℃及び相対湿度10%の条件における水素ガス透過係数が2.5×10-9cm・cm/(s・cm・cmHg)以下であり、120℃の熱水に24時間浸漬させたときの質量減少率が15質量%以下であり、前記酸型のスルホン酸基を有するポリマーの前駆体である、フルオロスルホニル基を有するポリマーの容量流速値が220℃以上である、酸型スルホン酸基含有ポリマー。
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