Matsushita Electric Industrial Co., Ltd.

Motohide Masui

Katsumi Kozu

Keisuke Tanaka

Hideki Kasahara

Tatsuhiko Suzuki

Hajime Konishi

Takeshi Yao

Shigeo Aoki

Junji Fujiwara

Takashi Takemura

Yoshinori Koyanagi

A battery power source device including a plurality of rechargeable batteries ( ) having a laminated sheet as an outer case, and having extended positive and negative electrode leads of a metal foil is provided. A circuit board ( ) and a plurality of rechargeable batteries are positioned in a pack case ( ), a soldering land ( ) is formed in the extending direction of the positive and negative electrode leads ( ) and ( ) of the rechargeable batteries, and a circuit pattern formed on the circuit board allows the circuit board and the rechargeable batteries to be connected without applying force in the bending or distortional direction to the positive and negative electrode leads of a foil.

Battery power source device including rechargeable battery and circuit board joined thereto

A method for managing a back-up power source capable of maintaining the discharge capacity of a nickel metal-hydride storage battery for a long-term at a low cost, and is suitable for the management of the back-up power source for the guidance lights, the emergency lights, the information telecommunication systems, and the like is disclosed. The present invention provides a method for managing the back-up power source which uses a nickel metal-hydride storage battery including a positive electrode mainly consisting of nickel oxide, a negative electrode mainly consisting of a hydrogen storage alloy, a separator and an alkaline electrolyte, wherein an intermittent charge is performed on the nickel-metal hydride storage battery, comprising: calculating a self-discharge quantity of the nickel-metal hydride storage battery during idle period of the intermittent charge on the basis of a temperature of the nickel-metal hydride storage battery at the idling; and controlling the charging of the nickel-metal hydride storage battery on the basis of the obtained self-discharge quantities.

Method for managing back-up power source

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Wakayama, Japan

Motohide Masui