Kabushiki Kaisha Toshiba

Akihiko Ujiie

Masaki Sato

Kazuto Kuroda

Masahiro Sekino

Shinichiro Kosugi

Tomonao Takamatsu

Mitsunobu Yoshida

Tatsuya Arai

Min Lin

Takafumi Nakahama

Kotaro Ogawa

Hideaki Yasui

Mitsuhiro Numazaki

Atsumi Kondo

Akinobu Nishikawa

Mai Honda

Masahiro Kurosu

Shigeki Kono

Yosuke Nakazaka

According to one embodiment, a vehicle-use storage battery system includes a storage battery, a main circuit, a circuit breaker, a storage battery management unit, a first determiner, and a second determiner. The main circuit is electrically connected to the storage battery. The circuit breaker is disposed between the storage battery and the main circuit to make or break the electrical connection therebetween. The storage battery management unit manages an operating state of the storage battery. The first determiner determines whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker. The second determiner determines, on the basis of at least one of operating states of the storage battery management unit, the first determiner, and the circuit breaker, whether to break the electrical connection between the storage battery and the main circuit by means of the circuit breaker.

Vehicle-use storage battery system

According to one embodiment, a vehicular storage battery device includes a housing, battery boxes, and a common cooling passage. The battery boxes are disposed in the housing. Each of the battery boxes houses an electric cell as a vehicle power source and includes a heat transporting part transporting heat generated in the battery box to outside of the battery box. The common cooling passage is disposed in the housing. The common cooling passage is provided with an inlet for taking in a fluid and an outlet for discharging the fluid having passed through the passage. The inlet and the outlet are open in a direction different from a traveling direction of the vehicle. The heat transporting part of each of the battery boxes is exposed to inside of the passage.

Vehicular storage battery device

Growing community of inventors

Tokyo, Japan

Akihiko Ujiie