Kyoho Machine Works, Ltd.

Toyota Jidosha Kabushiki Kaisha

Toyoda Gosei Co., Ltd.

Yukihiro Isogai

Masanori Kodera

Nobuyoshi Fujiwara

Kosuke Kusaba

Seigo Fujishima

Masayuki Kitaura

Yoshiaki Kameda

Shinichi Takeda

Jin Kasuya

Kazuhiro Noro

Provided is a laminated battery module that is capable of imparting a minimum required restraining load to a battery laminate at a low temperature and a low charging rate, while also withstanding the load on the battery laminate at a high temperature and a high charging rate, without increasing the size of the restraining member. A laminated battery moduleincludes a battery laminatecontaining one or more unit cells, a restraining membercontaining a pair of end plateslocated on both ends of the battery laminatein the direction of lamination and tensioning membersthat fasten the pair of end platesmutually, and an elastic memberlocated between the pair of end plates; wherein, the elastic memberis composed of a material that undergoes a decrease in the elastic modulus thereof accompanying a rise in temperature from &#x2212;30&#xb0; C. to 80&#xb0; C.

Laminated battery module

A battery holder includes restriction members protruded from a holding base plate in an axial direction of batteries to be located in spaces between the batteries. Each of the restriction members has: a tapered surface which is inclined to the axial direction and is in line contact with an outer periphery of the end face of the battery when the restriction member is inserted into the space, so as to apply a force to move the battery in a radial direction of the battery; and a support surface which supports a side face of the battery that is not in contact with the tapered surface, by surface contact. The support surface receives a moving force in the radial direction from the tapered surface and supports the side face of the battery by a reactive force.

Battery device that holds batteries

Growing community of inventors

Toyota, Japan

Yukihiro Isogai