Invention Grant
US07704629B2 Direct oxidation fuel cells with improved cathode gas diffusion media for low air stoichiometry operation
失效
直接氧化燃料电池具有改进的阴极气体扩散介质，用于低空气化学计量操作
- Patent Title: Direct oxidation fuel cells with improved cathode gas diffusion media for low air stoichiometry operation
- Patent Title (中): 直接氧化燃料电池具有改进的阴极气体扩散介质，用于低空气化学计量操作
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Application No.: US11655867Application Date: 2007-01-22
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Publication No.: US07704629B2Publication Date: 2010-04-27
- Inventor: Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
- Applicant: Guoqiang Lu , Chao-Yang Wang , Takashi Akiyama
- Applicant Address: JP Tokyo US PA University Park
- Assignee: Panasonic Corporation,The Penn State Research Foundation
- Current Assignee: Panasonic Corporation,The Penn State Research Foundation
- Current Assignee Address: JP Tokyo US PA University Park
- Agency: McDermott Will & Emery LLP
- Main IPC: H01M4/00
- IPC: H01M4/00 ; H01M2/00
Abstract:
A cathode for use in a direct oxidation fuel cell (DOFC) comprises a gas diffusion medium (GDM) including a backing layer and a microporous layer comprising a fluoropolymer and an electrically conductive material, wherein loading of the fluoropolymer in the microporous layer is in the range from about 10 to about 60 wt. %. In use, a concentrated solution of a liquid fuel is supplied to an anode and an oxidant to the cathode of the fuel cell, and the fuel cell may be operated at a low oxidant stoichiometry ξc not greater than about 2.5.
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