| US 7,521,143 B2 | ||
| Polymer electrolyte fuel cell | ||
| Tatsuto Yamazaki, Moriguchi (Japan); Yoshiaki Yamamoto, Katano (Japan); Hiroki Kusakabe, Sakai (Japan); Hideo Ohara, Katano (Japan); Nobuhiro Hase, Neyagawa (Japan); and Shinsuke Takeguchi, Kadoma (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Filed on May 10, 2004, as Appl. No. 10/841,557. | ||
| Application 10/841557 is a division of application No. 10/023907, filed on Dec. 21, 2001, granted, now 6,740,443. | ||
| Prior Publication US 2004/0209141 A1, Oct. 21, 2004 | ||
| Int. Cl. H01M 8/10 (2006.01) | ||
| U.S. Cl. 429—34 [429/38] | 11 Claims |
| 1. A polymer electrolyte fuel cell comprising:
a fuel cell stack comprising a plurality of conductive separators and a plurality of membrane electrode assemblies that are
stacked with one of said conductive separators interposed therebetween, each of said membrane electrode assemblies comprising
a polymer electrolyte membrane, and an anode and a cathode sandwiching said polymer electrolyte membrane;
a means for supplying a fuel gas to said anode; and
a means for supplying an oxidant gas to said cathode,
wherein said plurality of conductive separators comprise at least one separator comprising: a fuel gas inlet-side manifold
aperture; a fuel gas outlet-side manifold aperture; a gas flow channel for supplying the fuel gas to said anode which is formed
on an anode-side of the separator; an inlet-side through hole and an outlet-side through hole penetrating the separator which
are formed at an inlet-side end and an outlet-side end of said gas flow channel for fuel gas; and an inlet-side connection
groove and an outlet-side connection groove for connecting said inlet-side and outlet-side through holes with said fuel gas
inlet-side manifold aperture and said fuel gas outlet-side manifold aperture, respectively, which are formed on a cathode-side
of the separator.
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