REDOX FLOW BATTERY

WIPO Patent Application WO/2023/120449

A1

A redox flow battery according to the present invention is provided with: a cell having a first chamber and a second chamber that are partitioned from each other by a barrier film; a first electrode serving as a positive electrode in a discharge mode; a second electrode serving as a negative electrode in a discharge mode; a first tank for storing a first electrolytic solution; a first circulation device for circulating the first electrolytic solution between the first chamber and the first tank; a second tank for storing a second electrolytic solution; and a second circulation device for circulating the second electrolytic solution between the second chamber and the second tank. An active material is contained in each of the first electrolytic solution and the second electrolytic solution. The active material contained in the second electrolytic solution is a quinone. The redox flow battery is further provided with: a power supply for causing an electrical current to flow between the first electrode and the second electrode in a charge mode; a charging-rate detection device for measuring the charging rate of the redox flow battery; and a control device. An upper limit for the charging rate of the redox flow battery is preset in the control device. If a detection value from the charging-rate detection device reaches the upper limit while the redox flow battery is being charged, the control device stops the supply of an electrical current from the power supply.

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HIRAYAMA KOICHIRO (JP)
KIYABU TOSHIYASU (JP)
SATO AKIO (JP)
NOGUCHI YOSHINORI (JP)
EGAWA KAORU (JP)
ARAKI SHO (JP)
MORITA YASUSHI (JP)
MURATA TSUYOSHI (JP)
ITO AYA (JP)
OKADA SHIGEMITSU (JP)

PCT/JP2022/046569

June 29, 2023

December 19, 2022

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MITSUBISHI HEAVY IND LTD (JP)
NAGOYA DENKI EDUCATIONAL FOUND (JP)

H01M8/18; H01M8/0258; H01M8/04186; H01M8/0432; H01M8/04537; H01M8/04701; H01M8/04746; H01M8/04858; H01M8/2455; H01M10/48

WO2006129635A1	2006-12-07
WO2021261187A1	2021-12-30

JP2009016217A

2009-01-22

SSIP PATENT ATTORNEY CORPORATION (JP)

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