发明授权
US08906579B2 Low contact resistance coated stainless steel bipolar plates for fuel cells
有权
用于燃料电池的低接触电阻涂层不锈钢双极板
- 专利标题: Low contact resistance coated stainless steel bipolar plates for fuel cells
- 专利标题(中): 用于燃料电池的低接触电阻涂层不锈钢双极板
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申请号: US12465963申请日: 2009-05-14
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公开(公告)号: US08906579B2公开(公告)日: 2014-12-09
- 发明人: Mahmoud H. Abd Elhamid , Gayatri Vyas Dadheech , Arianna T. Morales , Maria C. Militello
- 申请人: Mahmoud H. Abd Elhamid , Gayatri Vyas Dadheech , Arianna T. Morales , Maria C. Militello
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations LLC
- 当前专利权人: GM Global Technology Operations LLC
- 当前专利权人地址: US MI Detroit
- 代理机构: Dinsmore & Shohl LLP
- 主分类号: H01M4/64
- IPC分类号: H01M4/64 ; H01M4/66 ; H01M2/38 ; H01M2/40 ; H01M8/24 ; B05D5/12 ; H01M8/10 ; H01M8/02
摘要:
A bipolar plate to reduce electrical contact resistance between the plate and a diffusion layer used in a fuel cell. The opposing surfaces of the plate define flow channels with upstanding lands interspersed between them. The lands of the plate form an electrically-conductive contact with a diffusion layer in the fuel cell. At least a portion of the electrically-conductive contact is made up of a nickel-based alloy that reduces the contact resistance between the plate and the diffusion layer as a way to achieve improved electric current density. In one form, the alloy can be used as the primary material in the plate, while in another, it can be used as a coating deposited onto a conventional stainless steel plate.
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