Hitachi Chemical Company, Ltd.

Shin-kobe Electric Machinery Co., Ltd.

Satoshi Kugino

Yuichiro Mishiro

Akira Tanaka

Yusuke Uchida

Murashi Shinto

Kenzou Ikeda

Mitsumasa Nakano

Seiji Kanemitsu

Case for electric power storage cell pack

A secondary battery in which the contact resistance is not increased even if the number of housed electrodes is increased is provided. Two screw holesare formed in an opposed surfaceof a terminal body portionof a positive terminalthat faces the stacking direction. A projecting surfaceis provided between the two screw holesto project toward a positive pressing memberwith respect to portions provided with the screw holes. The projecting surfaceprojects toward the positive pressing memberby 0.2 mm with respect to the portions provided with the two screw holes

Terminal structure for secondary battery and secondary battery

If a non-aqueous electrolyte secondary battery has a seal structure between a lid and an electrode terminal in which a seal member is compressed by fastening a nut, the nut may be loosened to make the amount of compression of the seal member insufficient to reduce the seal performance even if the nut is fastened enough to obtain an appropriate amount of compression of the seal member at the time of manufacture of the battery. A battery case has an opening, and houses an electrode group and an organic electrolyte. A lid is fastened to the battery case, and tightly seals the opening of the battery case. An electrode terminal is electrically connected to the electrode group. The lid and the electrode terminal face each other via an elastic member.

Non-aqueous electrolyte secondary battery

Growing community of inventors

Tokyo, Japan

Satoshi Kugino