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. 28, 2015
Filed:
May. 07, 2002
Hiroyuki Nakaishi, Osaka, JP;
Takashi Kanno, Osaka, JP;
Seiji Ogino, Osaka, JP;
Takefumi Ito, Osaka, JP;
Toshio Shigematsu, Osaka, JP;
Nobuyuki Tokuda, Osaka, JP;
Hiroyuki Nakaishi, Osaka, JP;
Takashi Kanno, Osaka, JP;
Seiji Ogino, Osaka, JP;
Takefumi Ito, Osaka, JP;
Toshio Shigematsu, Osaka, JP;
Nobuyuki Tokuda, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
The Kansai Electric Power Co., Inc., Osaka, JP;
Abstract
This invention provides a cell stack for a redox flow battery that can provide battery efficiencies with high reliability over a long term, without any adhesive bonding between a bipolar plate and electrodes. In the cell stackfor the redox flow battery of a cell frame, electrodesand a membranebeing stacked in layers, the cell framecomprises a frameA and a bipolar platearranged inside of the frameA, and the electrodesare put into close contact with the bipolar plateby a clamping force, without being adhesively bonded to the bipolar plate. It is preferable that when the electrodesare compressed to a thickness corresponding to a level difference between the frameA and the bipolar plate, repulsive force of the electrodes is in the range of more than 15 kPa to less than 150 kPa (more than 0.153 kgf/cmto less than 1.53 kgf/cm).