| US 7,541,108 B2 | ||
| Solid polymer fuel cell | ||
| Norihiko Kawabata, Osaka (Japan); Takashi Morimoto, Osaka (Japan); Hiroki Kusakabe, Osaka (Japan); Toshihiro Matsumoto, Osaka (Japan); and Yoshiki Nagao, Osaka (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Appl. No. 11/914,809 PCT Filed Apr. 20, 2007, PCT No. PCT/JP2007/058589 § 371(c)(1), (2), (4) Date Nov. 19, 2007, PCT Pub. No. WO2007/123191, PCT Pub. Date Nov. 01, 2007. |
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| Claims priority of application No. 2006-117590 (JP), filed on Apr. 21, 2006. | ||
| Prior Publication US 2009/0029217 A1, Jan. 29, 2009 | ||
| Int. Cl. H01M 8/02 (2006.01); H01M 8/10 (2006.01) | ||
| U.S. Cl. 429—35 [429/30] | 7 Claims |
| 1. A polymer electrolyte fuel cell comprising:
a frame-integrated membrane electrode assembly including a frame body in which a gas channel opening is formed, a polymer
electrolyte membrane provided inside the frame body, a pair of electrodes sandwiching the polymer electrolyte membrane, and
a sealant enclosing the gas channel opening and the electrodes;
a separator having a channel for supplying and releasing a fuel gas to and from one of the pair of electrodes; and
a separator having a channel for supplying and releasing an oxidizer gas to and from the other one of the pair of electrodes,
wherein:
the frame body has a plurality of projections having a hook-shaped tip on both planes of the frame body and each separator
has a plurality of stepped parts; and
the projections of the frame body and the stepped parts of the pair of separators are integrated by fitting together with
each other.
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