发明授权
- 专利标题: Cathode for fuel cell
- 专利标题(中): 燃料电池阴极
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申请号: US12682868申请日: 2008-10-08
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公开(公告)号: US08460836B2公开(公告)日: 2013-06-11
- 发明人: Hyuk Kim , Won-Ho Lee , Chang-Song Lee , Seong-Uk Jeong , Sang-Hyun Lee
- 申请人: Hyuk Kim , Won-Ho Lee , Chang-Song Lee , Seong-Uk Jeong , Sang-Hyun Lee
- 申请人地址: KR Seoul
- 专利权人: LG Chem, Ltd.
- 当前专利权人: LG Chem, Ltd.
- 当前专利权人地址: KR Seoul
- 代理机构: McKenna Long & Adridge, LLP
- 优先权: KR10-2007-0104206 20071016
- 国际申请: PCT/KR2008/005899 WO 20081008
- 国际公布: WO2009/051368 WO 20090423
- 主分类号: H01M8/24
- IPC分类号: H01M8/24
摘要:
A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell.
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