The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2018
Filed:
Mar. 06, 2014
Murata Manufacturing Co., Ltd., Kyoto, JP;
Shuichi Takizawa, Tokyo, JP;
Naoyuki Sugeno, Fukushima, JP;
Koji Umetsu, Miyagi, JP;
Eiji Kumagai, Fukushima, JP;
Bunya Sato, Fukushima, JP;
Aniket Khade, Fukushima, JP;
Tatsuya Adachi, Fukushima, JP;
Atsushi Chinen, Fukushima, JP;
Hisato Asai, Fukushima, JP;
Kohki Watanabe, Fukushima, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
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.