摘要 |
A gas diffusion electrode and method of making the same. According to one embodiment, the electrode comprises a support layer, a first cushioning layer positioned on top of the support layer, a second cushioning layer positioned on top of the first cushioning layer, and a catalyst layer positioned on top of the second cushioning layer. The support layer is a mechanically stable, electrically-conductive, gas porous substrate, such as carbon fiber paper. The first cushioning layer, which is also gas porous, comprises a non-woven mat of electrically-conductive, chemically-inert fibers, preferably carbon nanofibers, bound together with a polymeric binder, such as polytetrafluoroethylene. The second cushioning layer is similar to the first cushioning layer, except that carbon black or a similar electrically-conductive, chemically-inert particulate material is included in addition to or instead of the fibrous material for the purpose of fine-tuning pore size. |
申请人 |
GINER ELECTROCHEMICAL SYSTEMS, LLC;LIU, HAN;MCDONALD, ROBERT, C.;MCCALLUM, THOMAS, J.;LACONTI, ANTHONY, B.;FORCHIONE, JOHN;O'HARA, JEANETTE;ROTH, JOERG |
发明人 |
LIU, HAN;MCDONALD, ROBERT, C.;MCCALLUM, THOMAS, J.;LACONTI, ANTHONY, B.;FORCHIONE, JOHN;O'HARA, JEANETTE;ROTH, JOERG |