发明授权
US07488788B2 Electrolyte polymer for polymer electrolyte fuel cells, process for its production and membrane-electrode assembly
有权
用于聚合物电解质燃料电池的电解质聚合物,其生产方法和膜 - 电极组装
- 专利标题: Electrolyte polymer for polymer electrolyte fuel cells, process for its production and membrane-electrode assembly
- 专利标题(中): 用于聚合物电解质燃料电池的电解质聚合物,其生产方法和膜 - 电极组装
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申请号: US11271915申请日: 2005-11-14
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公开(公告)号: US07488788B2公开(公告)日: 2009-02-10
- 发明人: Nobuyuki Kasahara , Atsushi Watakabe , Tetsuji Shimohira , Hisao Kawazoe , Ichiro Terada
- 申请人: Nobuyuki Kasahara , Atsushi Watakabe , Tetsuji Shimohira , Hisao Kawazoe , Ichiro Terada
- 申请人地址: JP Tokyo
- 专利权人: Asahi Glass Company, Limited
- 当前专利权人: Asahi Glass Company, Limited
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: JP2003-133991 20030513
- 主分类号: C08F16/24
- IPC分类号: C08F16/24
摘要:
To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.