Murata Manufacturing Co., Ltd.

Aniket Khade

Naoyuki Sugeno

Koji Umetsu

Eiji Kumagai

Tatsuya Adachi

Shuichi Takizawa

Bunya Sato

Kohki Watanabe

Atsushi Chinen

Hisato Asai

There is provided a power storage device including a plurality of modules each including secondary batteries, a charging switch that controls charging to the secondary batteries, a discharging switch that controls discharging of the secondary batteries, and a voltage measuring unit that measures a voltage of the module, and a switch control unit that controls one or both of the charging switch and the discharging switch. The modules are connected in parallel. The switch control unit maintains an on state of the discharging switch for at least one of the modules for a predetermined period, and controls the charging switch of the module in which a maximum module charging current estimated based on the voltage of the module is a predetermined value or less, to be in an on state.

Power storage device, power storage system, and control method of power storage device

Growing community of inventors

Fukushima, Japan

Aniket Khade