Gs Yuasa International Ltd.

Kazuma Saito

Kenji Hirakawa

Kohei Fujita

Motoshi Kiribayashi

Hiroyuki Ishiguro

Kiyoshi Nouzuka

Shota Iwasaki

Shinya Funo

Junichi Nishizawa

A lead-acid battery disclosed in the present specification includes: a container storing an element formed of a plurality of electrodes and an electrolyte solution; and a lid member fixed to an upper portion of the container. The lid member includes: a middle lid having a lid plate configured to seal an opening of the container; a cylindrical exhaust sleeve formed in a plateau portion formed on the lid plate in a penetrating manner and configured to discharge a gas generated in the container therethrough; and a recessed portion disposed adjacently to the exhaust sleeve and formed on a lower surface of the plateau portion in an upwardly recessed manner. The exhaust sleeve has a communication hole which communicates with the inside of the recessed portion and the inside of the exhaust sleeve.

Lead-acid battery

A storage battery grid includes: a frame bone that includes a substantially rectangular shape; a lug portion that is connected to a first side portion of the frame bone and projects outwardly from the frame bone; a main bone that extends from the first side portion to a second side portion which is opposed to the first side portion; and a plurality of first sub-bones that extend obliquely toward the second side portion, at least part of the plurality of first sub-bones branching from the main bone toward both sides, wherein at least part of the plurality of first sub-bones is bent.

Storage battery grid, method of manufacturing storage battery grid, and storage battery using storage battery grid

A valve regulated lead-acid battery includes a positive electrode plate, a retainer mat and a negative electrode plate housed in a container and holding an electrolyte solution respectively. The electrolyte solution contains colloidal silica and lithium ions.

Valve regulated lead-acid battery

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.

Growing community of inventors

Kyoto, Japan

Kazuma Saito