发明授权
US07838164B2 Film electrode composite element and production method therefor, and fuel cell
有权
薄膜电极复合元件及其制备方法和燃料电池
- 专利标题: Film electrode composite element and production method therefor, and fuel cell
- 专利标题(中): 薄膜电极复合元件及其制备方法和燃料电池
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申请号: US11721143申请日: 2005-11-24
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公开(公告)号: US07838164B2公开(公告)日: 2010-11-23
- 发明人: Shinya Adachi , Daisuke Izuhara , Masataka Nakamura , Naoki Shimoyama , Takao Uete , Masayuki Kidai
- 申请人: Shinya Adachi , Daisuke Izuhara , Masataka Nakamura , Naoki Shimoyama , Takao Uete , Masayuki Kidai
- 申请人地址: JP Tokyo
- 专利权人: Toray Industries, Inc.
- 当前专利权人: Toray Industries, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Pillsbury Winthrop Shaw Pittman LLP
- 优先权: JP2004-353914 20041207; JP2005-253178 20050901
- 国际申请: PCT/JP2005/021507 WO 20051124
- 国际公布: WO2006/061993 WO 20060615
- 主分类号: H01M8/10
- IPC分类号: H01M8/10 ; H01M4/86
摘要:
It is an object of the present invention to provide a method of producing a membrane electrode assembly using an interface resistance reducing composition which can simply reduce the resistance of the interface between an electrode and an electrolyte membrane in a short time at low temperatures at low pressure without polimerization while maintaining an effect of suppressing a fuel crossover even with an electrolyte membrane having high heat resistance, high strength, a high tensile elastic modulus and a low water content. This is achieved by a method of producing a membrane electrode assembly formed by sandwiching an electrolyte membrane between a pair of electrodes, comprising the steps of bonding at least one electrode to the electrolyte membrane sandwiching an interface resistance reducing composition containing a plasticizer between the electrode and the electrolyte membrane, and a membrane electrode assembly formed by sandwiching an electrolyte membrane between a pair of electrodes, wherein the membrane electrode assembly has a layer (A) at least between one electrode and the electrolyte membrane, and the value of the storage modulus C is 1 GPA or more when the storage moduli of the electrolyte membrane and the layer (A), which are measured with an ultramicro penetrometer, are regarded as C and D, respectively.