Title: Direct-type fuel cell and direct-type fuel cell system
Application Number: 200610172024 Application Date: 2006.12.20
Publication Number: 1988237 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01M8/10;H01M8/02;H01M4/86;H01M8/04
Applicant(s) Name: Matsushita Electric Ind Co., Ltd. Address:
Inventor(s) Name: Ueda Hideyuki;Fukuda Shinsuke;Akiyama Takashi
Attorney & Agent: sunjing guo donggong man
Abstract:
    A direct-type fuel cell having excellent power generating characteristics even under operating conditions utilizing a high concentration fuel at low air flow rates. The anode includes an anode-side diffusion layer that faces the fuel flow channel and an anode-side catalyst layer in contact with the electrolyte membrane. The cathode includes a cathode-side diffusion layer that faces the air flow channel and a cathode-side catalyst layer in contact with the electrolyte membrane. A surface area of the anode-side diffusion layer facing the fuel flow channel or both a surface area of the anode-side diffusion layer facing the fuel flow channel and a surface area of the cathode-side diffusion layer facing the air flow channel have a critical surface tension of penetrating wettability of 22 to 40 mN/m.
Time: 20