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:
May. 05, 2015
Filed:
Oct. 17, 2008
Yoshinori Yamamoto, Toyota, JP;
Koichiro Yamashita, Toyota, JP;
Takashi Wano, Ibaraki, JP;
Ryoichi Matsushima, Ibaraki, JP;
Yoshinori Yamamoto, Toyota, JP;
Koichiro Yamashita, Toyota, JP;
Takashi Wano, Ibaraki, JP;
Ryoichi Matsushima, Ibaraki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Nitto Denko Corporation, Ibaraki-Shi, JP;
Abstract
There is disclosed a fuel cell in which an insulating material is disposed, whereby the thermal diffusion of the inside and outside of a fuel cell can be suppressed to suppress the deterioration of the performance of the fuel cell due to a temperature drop. Moreover, the physical properties of the insulating material are specified, whereby appropriate insulating properties required in the fuel cell can be obtained, and startup properties are improved. A fuel cell has a cell stack in which a plurality of unit cells are stacked, and terminal plates disposed on both sides of the cell stack in a cell stack direction thereof. The fuel cell comprises an insulating portion having an insulating material and holding plates which hold the insulating material from both the sides of the insulating material in the cell stack direction, the insulating material is held between the holding plates, and the insulating material has a thermal conductivity of 0.1 W/mK or less and a porosity of 70% or more.