Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1989-04-19
1990-08-21
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 33, 429 34, H01M 810
Patent
active
049505629
ABSTRACT:
The present invention provides a solid electrolyte type of fuel cell of a planar type structure comprising a plurality of solid electrolyte plates, each being in the form of a flat plate and having a porous cathodic layer on one side and a porous anodic layer on the other side, which are laminated together through an interconnector plate provided in both its sides with grooves defining gas passages, wherein oxidizing agent and fuel gases are fed through said passages to the cathodic and anodic sides, thereby reducing the length of a current path running through regions of high resistance, increasing the degree of integration and improving reliability. By using heat-resistant parts for the interconnectors, cathodes and anodes, it is also possible to improve the resistance to oxidation and reduction as well as durability and obtain low resistance. it is further possible to obtain a fuel cell having satisfactory properties and capable of standing up to use over an extended period of time by using solid electrolyte for fuel cells which is obtained by sintering Y.sub.2 O.sub.3 -containing partially stabilized zirconia added with 5 to 20 % of alumina, has low resistance and high mechanical strength and is stable.
REFERENCES:
patent: 3554808 (1971-01-01), Fischer et al.
patent: 4476198 (1984-10-01), Ackerman
patent: 4599282 (1986-07-01), Hirota et al.
patent: 4704340 (1987-11-01), Kunz
patent: 4749632 (1988-06-01), Flandermeyer et al.
patent: 4824741 (1989-04-01), Kunz
patent: 4826741 (1989-05-01), Aldhart et al.
Ishizaki Fumiya
Iwasaki Hiroyuki
Mukaizawa Isao
Sakurada Satoshi
Shima Tsukasa
Skapars Anthony
Toa Nenryo Kogyo Kabushiki Kaisha
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