发明授权
US08470488B2 Metallic bipolar plates with high electrochemical stability and improved water management 有权
具有高电化学稳定性和改进水管理的金属双极板

Metallic bipolar plates with high electrochemical stability and improved water management
摘要:
A flow field plate or bipolar plate for a fuel cell that includes a carbide coating that makes the bipolar plate conductive, hydrophilic and stable in the fuel cell environment. Suitable carbides include, but are not limited to, chromium carbide, titanium carbide, tantalum carbide, niobium carbide and zirconium carbide. The carbide coating is then polished or textured by a suitable process, such as laser or chemical etching, to provide a surface morphology that makes the coating more hydrophilic, and further reduces the contact resistance on its surface.
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