Sony Corporation

Ryoichi Yamane

Hideya Takahashi

Yoshikazu Kanaishi

Toshimitsu Masuko

Takeshi Honda

Hisanori Narita

Hiroshi Nishikawa

Shigeru Murakami

Kazuo Togashi

Hirokazu Sawada

Kiyoshi Katayama

Takeshi Yuda

Kiyohiro Taki

A battery device having a large number of secondary cells in which the voltage of a large number of secondary batteries can be detected and controlled to facilitate the handling and to improve the reliability. The battery device is made up of a modular casing , a large number of secondary batteries housed in the modular casing , plural cell control units and an exterior casing accommodating the modular casing . The modular casing has an inner casing member and an outer casing member and has a large number of terminal openings opened in it. The secondary batteries are housed in the modular casing via the terminal openings so that positive terminal and negative terminal are alternately exposed to outside. A pre-set number of secondary batteries are grouped together as a set, with the totality of the secondary batteries being arranged in a plurality of such sets. The cell control unit has the functions of detecting and controlling the voltage of each battery module and each secondary battery and of inputting and outputting detection and control signals. The exterior casing is provided with a positive electrode terminal , a negative electrode terminal and a transmission/reception terminal of the cell control unit

Battery device for loading on a mobile system

A battery device housing a large number of secondary batteries, in which the batteries can be cooled efficiently as the effect of excessive vibrations or shock or changes in environmental conditions on the housed secondary batteries is suppressed and as sufficient air-tightness is maintained. The battery device includes a modular casing having a battery housing section in its inside and a large number of terminal openings an outer casing member for housing the modular casing in an accommodating space section and a large number of secondary batteries housed in the battery housing section so that terminal sections are exposed to outside through terminal openings The secondary batteries are connected in series with one another. The modular casing is housed in the outer casing member with a gap p between facing outer and inner peripheries with the interposition of mounting portions The modular casing is provided with a suction unit and an exhaust section for supplying and exhausting cooling air to or from the battery housing section The secondary batteries are accommodated in the battery device so that both ends of the batteries are cemented with an adhesive to the terminal openings and so that the outer peripheries of the batteries face the inner surface of the battery housing section with a gap in-between.

Battery device for loading on moving body

A battery device in which a large number of secondary batteries are efficiently housed and cemented strongly so that malfunctioning secondary batteries found after assembling can be exchanged and so that unusual heat evolution can be detected reliably. To this end, a pair of modular casing halves having battery housing half sections and a large number of terminal openings communicating with the battery housing half sections are coupled to each other to constitute a modular casing having a battery housing section A large number of secondary batteries are housed in the battery housing section so that both end terminals of the secondary batteries will be exposed to outside through the terminal openings. Each modular casing half is provided with bottomed adhesive charging openings in register with the respective terminal openings and adhesive efflux opening parts communicating with the terminal openings and with the adhesive charging openings. An adhesive charged through the adhesive charging openings is affixed to the outer periphery of the secondary batteries through the adhesive efflux opening parts to cement the ends of the secondary batteries to the terminal openings.

Battery device loaded on moving body

Rechargeable battery

A rectangular battery is disclosed. The rectangular battery includes a plurality of cathode plates and anode plates alternately superposed via a separator to face each other. The cathode plates and the anode plates are consecutively packed with the separator, the packed cathode plates or anode plates being folded at a separator fusing portion between the cathode plates or anode plates.

Rectangular battery

A sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk having a central aperture in which the safety valve projection is inserted and gas apertures through which gas is passed is fixed between the safety valve and the electric power generating element, a thin metal plate to which one of the leads of the electric power generating element is connected is attached to the element side of the disk to close the central aperture, and the safety valve projection is welded to the thin metal plate through the central aperture. In another embodiment, instead of the thin metal plate, a disk made of metal is fixed between the safety valve and the electric power generating element and the safety valve projection is welded to the center of the disk.

Sealed battery with current cut off means

Growing community of inventors

Tokyo, Japan

Ryoichi Yamane