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1. WO2020228252 - METHOD FOR ENHANCING DURABILITY OF CATALYST AND MEMBRANE ELECTRODE OF FUEL CELL

Publication Number WO/2020/228252
Publication Date 19.11.2020
International Application No. PCT/CN2019/114164
International Filing Date 29.10.2019
IPC
H01M 8/1004 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
1004characterised by membrane-electrode assemblies
CPC
H01M 4/90
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
H01M 4/9016
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
9016Oxides, hydroxides or oxygenated metallic salts
H01M 4/9041
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
9041Metals or alloys
H01M 4/9058
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
9041Metals or alloys
905specially used in fuel cell operating at high temperature, e.g. SOFC
9058of noble metals or noble-metal based alloys
H01M 4/921
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
92Metals of platinum group
921Alloys or mixtures with metallic elements
H01M 8/1004
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
1004characterised by membrane-electrode assemblies [MEA]
Applicants
  • 华南理工大学 SOUTH CHINA UNIVERSITY OF TECHNOLOGY [CN]/[CN]
Inventors
  • 廖世军 LIAO, Shijun
  • 叶跃坤 YE, Yuekun
Agents
  • 广州粤高专利商标代理有限公司 YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY
Priority Data
201910409745.616.05.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR ENHANCING DURABILITY OF CATALYST AND MEMBRANE ELECTRODE OF FUEL CELL
(FR) PROCÉDÉ PERMETTANT D'AMÉLIORER LA DURABILITÉ D'UN CATALYSEUR ET D'UNE MEMBRANE-ÉLECTRODE D'UNE PILE À COMBUSTIBLE
(ZH) 一种提升燃料电池催化剂及膜电极耐久性的方法
Abstract
(EN)
Disclosed is a method for enhancing the durability of a catalyst and a membrane electrode of a fuel cell. The method uses a mixture containing multiple components to treat a platinum-based catalyst, or directly adds a portion of the components to a catalyst layer, thereby fabricating a catalyst or a membrane electrode having high durability for a fuel cell. The mixture containing multiple components comprises one or more of the following: an oxide component stabilizing nano particles, a modifier component modifying a surface property of the catalyst, a quencher component for active free radicals, and an inhibitor component inhibiting carbon support corrosion. The portion of the components comprises one or more of the quencher component for free radicals and a catalyst surface modifying component. The present invention has an important effect in addressing the problem of insufficient stability/durability of fuel cells and in promoting development of the fuel cell automobile industry.
(FR)
L'invention concerne un procédé permettant d'améliorer la durabilité d'un catalyseur et d'une membrane-électrode d'une pile à combustible. Le procédé fait appel à un mélange contenant de multiples constituants destinés à traiter un catalyseur à base de platine, ou ajoute directement une partie des constituants à une couche de catalyseur, ce qui permet de fabriquer un catalyseur ou une membrane-électrode à durabilité élevée destinée à une pile à combustible. Le mélange contenant de multiples constituants comprend un constituant d'oxyde stabilisant les nanoparticules et/ou un constituant modificateur modifiant une propriété de surface du catalyseur et/ou un constituant extincteur de radicaux libres actifs et/ou un constituant inhibiteur inhibant la corrosion de support carboné. La partie des constituants comprend le constituant extincteur de radicaux libres et/ou un constituant modificateur de surface de catalyseur. La présente invention a un effet important sur la résolution du problème de stabilité/durabilité insuffisante de piles à combustible et sur la promotion du développement de l'industrie des automobiles à pile à combustible.
(ZH)
本发明公开了一种提升燃料电池催化剂及膜电极耐久性的方法。该方法采用含有多重组分混合物对铂基催化剂进行处理,或者将部分组分直接添加到催化剂层中,从而制备得到高耐久性燃料电池催化剂或膜电极;所述含有多重组分混合物包括稳定纳米粒子的氧化物组分、调变催化剂表面性能的调变剂组分、活性自由基淬灭剂组分及抑制碳载体腐蚀的抑制剂组分中的一种以上;所述部分组分包括自由基淬灭剂组分或催化剂表面调变组分中的一种以上。本发明对于解决燃料电池稳定性/耐久性不足的问题,对于促进燃料电池汽车产业的发展具有十分重要的作用。
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