US 11,749,813 B2
Bipolar plate, cell frame, cell stack, and redox flow battery
Takashi Kanno, Osaka (JP)
Assigned to SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/426,876
Filed by SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Feb. 3, 2020, PCT No. PCT/JP2020/003999
§ 371(c)(1), (2) Date Jul. 29, 2021,
PCT Pub. No. WO2020/166418, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 2019-024664 (JP), filed on Feb. 14, 2019.
Prior Publication US 2022/0109165 A1, Apr. 7, 2022
Int. Cl. H01M 8/0258 (2016.01); H01M 8/0273 (2016.01); H01M 8/18 (2006.01)
CPC H01M 8/0258 (2013.01) [H01M 8/0273 (2013.01); H01M 8/18 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A bipolar plate facing an electrode of a redox flow battery and comprising an introduction channel and a discharge channel of an electrolyte,
wherein one of the introduction channel and the discharge channel is a groove-like flow channel that is formed in a surface of the bipolar plate, and the other of the introduction channel and the discharge channel is a pipe-like flow channel that is formed in an inside of the bipolar plate, and
wherein the bipolar plate includes a communication hole that communicates with the pipe-like flow channel from the surface.