Matsushita Electric Industrial Co., Ltd.

Dai Nippon Printing Co., Ltd.

Yoshie Suzuki

Minoru Yoshinaka

Kiichi Koike

Masayuki Ide

Yoshitaka Sunagawa

Toshihiro Inoue

Makoto Tanaka

Fujio Hirano

Mitsuo Okabe

Minoru Kadowaki

Koujirou Matsuo

Mansaku Sugimoto

Storage battery

A sealed lead acid battery having a thermostat or thermal protector as a protector of battery from heat is provided, which comprises a battery container comprised of cell chambers each containing a cell element. A terminal box is provided at the end of the battery container. The battery container is provided at the end thereof with the terminal box. The thermostat or thermal protector is mounted in the terminal box to be highly sensitive to heat, thus protecting the lead acid battery from heat. In the terminal box are inserted a pair of charge and discharge terminals and the thermostat or thermal protector, so that safe positioning of the thermostat or thermal protector and good heat conduction from the cell element to the thermostat or thermal protector are secured.

Lead acid battery

Sealed lead-acid storage battery

The present invention provides an enclosed lead storage battery comprising a plate assembly consisting of a positive plate, negative plates and a separator, an electrolyte held in position by the plate assembly, and a jacket made of film- or sheet-formed synthetic resin and surrounding the plate assembly and electrolyte. The jacket is of a multilayer laminate structure made by disposing a polyolefin film on the inside contacting the plate assembly and laminating a film of thermoplastic synthetic resin in two or more layers on the outside thereof. According to the present invention, the plate assembly can be encased with an unexpensive jacket of a simple construction, and the joint of the jacket to the pole posts of the plate assembly is strengthened to offer a leak-proof enclosed lead storage battery.

Enclosed lead storage battery and process for producing the same

Sealed storage battery

Growing community of inventors

Chigasaki, Japan

Yoshie Suzuki