Kabushiki Kaisha Toshiba

Toshiba Infrastructure Systems & Solutions Corporation

Ntn Corporation

Motohiro Itou

Shinya Sato

Kazuto Kuroda

Yuji Sasaki

Yusuke Kikuchi

Takayuki Kawamura

Minoru Gyoda

Kota Asami

Ryo Okabe

Nobuyasu Negishi

Hirofumi Yamamoto

Norihiro Kaneko

Noriaki Miwa

Tatsumi Matsuo

Masahito Morone

Yoshinori Sugisaki

A battery module including a plurality of battery cells, a first chassis, and a connection member. The battery cells are aligned in a first direction. The first chassis includes a plurality of first compartments in which the battery cells are housed one by one, and at least one second compartment that is partitioned in the first direction. The connection member includes a body that is housed in the second compartment, a pair of connection terminals that is mounted on a first face of the body and is electrically connectable to the electrodes of the battery cells via a conductive member. The first face faces in a second direction intersecting with the first direction, and a conductor that extends across the pair of connection terminals.

Battery module and connection member

A storage battery system includes a cell module including storage battery cells, a battery management unit configured to maintain a contactor having a normally open contact in a closed state, while being supplied with power, and a power supply control circuit that DC to DC converts the power of the cell module for supply to the battery management unit. The power supply control circuit includes an SOC estimator that determines from a voltage of the cell module whether or not the cell module is in an overdischarge state, and after determining that the cell module is not in the overdischarge state, outputs a status signal to the power supply control circuit. In response to no receipt of the status signal from the SOC estimator, the power supply control circuit interrupts the power supply to the battery management unit from the cell module.

Storage battery system with state of charge estimator capable of outputting status signal to power supply control circuit, method, and computer program product

Growing community of inventors

Bunkyo, Japan

Motohiro Itou