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:
Sep. 19, 2006
Filed:
Nov. 12, 2002
Naoya Matsuoka, Yokosuka, JP;
Naoya Matsuoka, Yokosuka, JP;
Nissan Motor Co., Ltd., Kanagawa, JP;
Abstract
A fuel cell () comprises an anode (A) and cathode (B) disposed on either side of a solid polymer electrolyte membrane (A), and power is generated by supplying hydrogen to the anode (A) and supplying hydrogen to the cathode (B). When the temperature of the fuel cell () is below 0° C., water in the cell freezes. When a power plant using the fuel cell () is warmed up under the temperature less than 0° C., the anode (A) is connected to the positive electrode of a secondary battery () and the cathode (B) is connected to the negative electrode of the secondary battery () to electrolyze frozen water in the cell, thereby thawing the frozen water using the heat accompanying the electrolysis.