Nissin Electric Co., Ltd.

Shosuke Yamanouchi

Hiroshige Deguchi

Lan Huang

Yasuyuki Okumura

Yuki Uemura

Toshihiro Miyazaki

An electricity storage battery is described, including an anode electrolyte solutionthat contains a zinc redox material and an amine represented by a general formula (1) below: In the general formula (1), n is one of the integers 0 to 4, and each of R, R, Rand Rindependently represents hydrogen, methyl or ethyl.

Electricity storage battery

A positive electrode electrolyte () and a negative electrode electrolyte () that are used in this energy storage battery have a pH within the range from 2 to 8 (inclusive). An ion exchange membrane, which is obtained by graft-polymerizing styrenesulfonate to a resin film base material that uses an ethylene-vinyl alcohol copolymer as a matrix, is used as a diaphragm () of this energy storage battery.

Energy storage battery

A redox flow battery is described, mainly including a charge/discharge cell, a cathode electrolyte tank, and an anode electrolyte tank. The inside of the charge/discharge cell is divided into a cathode cell and an anode cell by a diaphragm. A collector plate and a cathode are contained in the cathode cell. An aqueous solution containing a Mn-polyethyleneimine complex is supplied from the cathode electrolyte tank to the cathode through a supply pipe. Thereby, an energy storage battery that has durability sufficient for practical applications in a wide range of fields can be provided.

An electricity storage battery is described, including a cathode electrolyte solution that contains a manganese redox material and an amine represented by a general formula (1) below: In the general formula (1), n is one of the integers 0 to 4, and each of R, R, Rand Rindependently represents hydrogen, methyl or ethyl, with the proviso that at least one of R, R, Rand Ris methyl when n is 0.

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Kyoto, Japan

Shosuke Yamanouchi