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:
Apr. 25, 2006
Filed:
Oct. 23, 2000
Kazuhiko Otawa, Osaka, JP;
Tsunemori Yoshida, Sanda, JP;
Katsunori Sugita, Sanda, JP;
Nippon Pillar Packing Co., Ltd., Osaka, JP;
Abstract
According to the invention, in a separator molded member (A) for a fuel cell which is produced by: loading a complex compound that is configured by bonding graphite powder by means of a thermosetting resin, into a mold (); and forming ribs () for forming gas passages by the resin molding process, the surfaces of the ribs () are alkali-treated by, for example, etching by using an alkaline solution, and graphite particles () which are flat and soft are exposed from the top surfaces of the ribs () which function as a contact surface with an electrode in the separator molded member (A), and resin defective portions () are formed between adjacent graphite particles (), whereby the contact area with an electrode is enlarged, so that the performance and efficiency of the fuel cell can be improved by remarkable lowering of the contact resistance.