Gs Yuasa International Ltd.

Kenji Hirakawa

Kazuma Saito

Motoshi Kiribayashi

A lead acid storage battery according to the present invention comprises a battery container for housing a plurality of cells, a middle lid for covering the battery container, and an upper lid for covering the middle lid, wherein, on the upper surface of the middle lid, a gas discharging port for discharging the gas generated inside of the cell and an electrolyte recirculating port for recirculating the moisture to be discharged along with the gas within the cell are formed as corresponding to each cell. A plurality of exhaust chambers separated by an exhaust chamber partition are formed in a space surrounded by the middle lid and the upper lid, and a mechanism for collectively exhausting the gas discharged from the gas discharging port to the outside of the battery by interconnecting the plurality of exhaust chambers is comprised.

Lead acid storage battery

To improve the penetration short-circuit resistance of a valve-regulated lead-acid battery. A mixed and scooped mat of glass fibers and organic fibers is used as a separatorof a battery comprising an electrode plate packobtained by inserting the separatorbetween a positive electrode plateand a negative electrode plateand housed in a containerand an electrolyte retained in the electrode plate packand the separator, wherein the separator is a mixed and scooped mat of glass fibers and organic fibers and the electrolyte is silica sol mixed with silica and silica sol is injected as the electrolyte.

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Kyoto, Japan

Kenji Hirakawa