US 12,191,506 B2
Redox flow battery cell, cell stack and redox flow battery system
Yuta Ochi, Osaka (JP)
Assigned to SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/626,382
Filed by SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Jul. 18, 2019, PCT No. PCT/JP2019/028371
§ 371(c)(1), (2) Date Jan. 11, 2022,
PCT Pub. No. WO2021/009928, PCT Pub. Date Jan. 21, 2021.
Prior Publication US 2022/0263101 A1, Aug. 18, 2022
Int. Cl. H01M 4/96 (2006.01); H01M 4/86 (2006.01); H01M 8/18 (2006.01)
CPC H01M 4/96 (2013.01) [H01M 8/188 (2013.01); H01M 2004/8684 (2013.01); H01M 2004/8689 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A redox flow battery cell comprising a positive electrode and a negative electrode, wherein
each of the positive electrode and the negative electrode is an assembly consisting essentially of a carbon fiber assembly consisting of a plurality of carbon fibers, and
a mass of the carbon fiber assembly per unit area of the positive electrode is larger than a mass of the carbon fiber assembly per unit area of the negative electrode.