The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 1993
Filed:
Nov. 12, 1991
Masaru Tsutsumi, Hyogo, JP;
Nobuyoshi Nishizawa, Neyagawa, JP;
Tsukasa Itoh, Sumoto, JP;
Takaaki Matsubayashi, Hirakata, JP;
Takahiro Yonesaki, Tokorozawa, JP;
Koichi Satoh, Kobe, JP;
Akio Furukawa, Osaka, JP;
Ikuo Yonezu, Hirakata, JP;
Shin Fujitani, Hirakata, JP;
Kenji Nasako, Hirakata, JP;
Toshihiko Saito, Kyoto, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A fuel cell system for directly converting chemical energy of a fuel into electric energy electrochemically. A fuel cell has a cathode and an anode. A main hydrogen absorbing alloy supplies a hydrogen gas to the anode of the fuel cell during steady-state operation of the system. An auxiliary hydrogen absorbing alloy originally having a higher hydrogen gas absorbing/desorbing equilibrium pressure than the main hydrogen absorbing alloy at an equal temperature supplies a hydrogen gas to the anode until the equilibrium pressure of the main hydrogen absorbing alloy, which is supplied an exhaust gas from the fuel cell is equal to a hydrogen gas absorbing/desorbing equilibrium pressure of the auxiliary hydrogen absorbing alloy, the auxiliary hydrogen absorbing alloy receiving the hydrogen gas from the main hydrogen absorbing alloy during steady-state operation.