ELECTRIC POWER STORAGE DEVICE, CELL FOR ELECTRIC POWER STORAGE DEVICE, AND ITS MANUFACTURING METHOD

• Main Authors: NISHIYAMA TOSHIHIKO, SHINODA TOMOKI, MIZUKOSHI TAKASHI, TAKAHASHI NAOKI, YOSHINARI TETSUYA
• Format: Patent
• Language: English
• Published: 07.02.2008
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a cell for an electric power storage device, which has no effect of heat and pressure on the inside of the cell; and to provide the manufacturing method of the cell. SOLUTION: In the cell for the electric power storage device, a gasket 7 made of non-conductive rubber surrounding the outer peripheral surfaces of a pair of electrodes arranged through a separator and the bonding part of the electrodes and a current collector made of conductive rubber covering the upper and lower surfaces of the gasket 7 are cured, and the gasket other than the bonding part and the current collector are not cured. The manufacturing method contains a process of surrounding the outer peripheral surfaces of the pair of electrodes arranged through the separator with the gasket 7 made of the non-conductive rubber and covering the electrodes and the upper and lower surfaces of the gasket 7 with the current collector made of the conductive rubber; a process of pouring an electrolyte into the cell; and a process heating and pressing with a curing jig having a projecting pressing part in a contact part between the gasket 7 and the current collector. COPYRIGHT: (C)2008,JPO&INPIT