Gs Yuasa International Ltd.

Gs Yuasa Corporation

Lithium Energy Japan

Hiroshi Tasai

Noriyoshi Munenaga

Isao Suzuki

Takeshi Shimozono

Takehito Matsubara

Seiji Nemoto

Tetsuzo Kojima

Taku Nakamura

Hideki Masuda

Koichi Nishiyama

Shun Ito

Wataru Mashiko

An electric storage apparatus includes a plurality of electric storage devices arranged side by side, each electric storage device including a case having a plurality of walls and an electric storage element which is housed in the case. The apparatus also includes a sheet-shaped heat transfer member which is in contact with outer surfaces of short sidewalls of the plurality of electric storage devices.

Electric storage device and electric storage apparatus

A connecting body for electrically connecting a power generating element and an electrode terminal positioned on a surface of a device container for housing the power generating element, the connecting body including: a plate portion positioned on the surface of the device container; and a protruding portion being in a position on a surface of the plate portion and displaced from a position of the electrode terminal, and having a tip end protruding to face the power generating element and a base with a peripheral edge surrounded with a principal face of the plate portion.

Connecting body, manufacturing method of connecting body, electric storage device, and manufacturing method of electric storage device

An electric storage device includes a case having a cuboid shape and including a terminal surface having an electrode terminal, a bottom surface opposite to the terminal surface, a long side surface, and a short side surface. The device also includes an electric storage element formed by winding positive and negative plates being laminated via a separator, the electric storage element being housed in the case and being away from an inner surface of the long side surface, the electric storage element being in electrical connection with the electrode terminal, and a heat transfer member in contact with an outer surface of the long side surface.

Disclosed is a method for manufacturing a cell which includes: a first step of manufacturing a core using a core manufacturing apparatus, the apparatus including a pair of winding shafts disposed with a rotation center of the apparatus interposed therebetween, the pair of winding shafts orbitally moving about the rotation center; and a second step of fabricating a laminated electrode member with a sheet-shaped positive electrode, a sheet-shaped negative electrode and a pair of sheet-shaped separators interposed thereto to be arranged alternately with the electrodes; and winding the laminated electrode member around a circumferential surface of the core. The first step includes: inserting a sheet having a higher strength than the separators between the winding shafts; orbitally moving the pair of winding shafts; and adhesively bonding or melt-bonding overlapped portions of the sheet at the winding shafts.

Cell and method for manufacturing the same, method and apparatus for manufacturing cell core, and cell core

A cell includes a case having a plurality of walls, a power generating element housed in the case in a state of being away from an inner surface of a bottom surface of the case, and a heat transfer member in contact with an outer surface of the bottom surface of the case.

The metal foil of the positive electrodeor the negative electrodein the power generating elementis connected along the connecting plate portionwhich is folded, twisted, and provided in a protruding condition from the main portionof the current-collector connector; hence the shape of the current-collector connectorbecomes easy to form, and a battery capable of enhancing current collection efficiency, reliability and workability can be provided.

Battery with current-collector connector

Battery having current-collection structure

Battery

Assembled battery

An assembled battery device comprising a plurality of single cells which are placed with a predetermined space between each of them and an element for detecting swelling is set in the predetermined space between the single cells and operates in accordance with the transformation of the single cells by swelling. Therefore, when a single cell swells and transforms, resulting from being overcharged, the element for detecting swelling is activated in accordance with such transformation and detects the state of overcharging.

Storage battery device and power source apparatus comprising it

A cell such as a nonaqueous electrolytic secondary cell includes a plurality of power-generating elements which each include a strip-like positive electrode and a strip-like negative electrode that are both wound into an elliptic cylinder with a separator being interposed therebetween, where each power-generating element has a peripheral face including at least a flat portion. The cell also includes a cell case for housing the power-generating elements, where the cell case has an opening, and a cover hermetically sealing the opening of the cell case. The flat portion of each power-generating element is superposed on the flat portion of the adjacent power-generating element, and a sheet member is wound around peripheries of the superposed power-generating elements to fasten the power-generating elements such that the power-generating elements are integrated.

Growing community of inventors

Kyoto, Japan

Hiroshi Tasai