发明名称 |
Membrane-electrode assembly, and production process |
摘要 |
Membrane-electrode assembly consisting of a cationic exchange membrane which contains fluorine (made of hydrolyzed copolymer of tetrafluoroethylene and vinyl ether which contains perfluorosulfur with PE = 900-1300) and porous layers of electrode material (made of electrocatalyst), inactive electroconductor material and fluoropolymer agglutinating material arranged on both surfaces of the cationic exchange membrane. The cationic exchange membrane which contains the fluorine is made of hydrolyzed copolymer of tetrafluoroethylene with vinyl ether which contains perfluorosulfur, having a crystallinity grade between 2 and 8 %; porous layers of the electrode material are obtained which have a porosity comprised between 40 and 70 % and decreasing in the direction of the cationic exchange membrane surface with a porosity gradient from 5 to 15 % per 1 mu . Said membrane-electrode assembly is used in fuel cells, in water electrolysis and in other electrochemical processes. |
申请公布号 |
AU770055(B2) |
申请公布日期 |
2004.02.12 |
申请号 |
AU19990016729 |
申请日期 |
1998.12.22 |
申请人 |
DAVID SYSTEMS TECHNOLOGY S.L. |
发明人 |
ALFONSO CARLOS CADAVAL FERNANDEZ DE LECETA;RICARDO BLACH VIZOSO |
分类号 |
H01M4/86;C08J5/22;C25B9/00;C25B9/10;H01B1/12;H01M4/88;H01M8/02;H01M8/10 |
主分类号 |
H01M4/86 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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