| abstract |
PURPOSE:To improve the leakage-proof performance of organic electrolyte cell by forming the sealing material layers composed of iso-butylene at the sealing portions between the gasket and sealing board, and the gasket and cell case. CONSTITUTION:Positive pole agent 3 employing negative pole lithium 6 and graphite fluoride as active material is contained in stainless cell case 1, and when sealing with stainless sealing board 8 through polypropylene resin gasket 9 sealing material layer 10 composed of poly-isobutylen is formed at one or both sealing portions between the gasket 9 and the sealing board 8, and the gasket 9 and the cell case 1. The organic electrolyte solvent in said organic electrolyte cell is preferable to be more than one kind of eter, ester, alcohl and ketone such as dimethoxyethan, dioxolan, tetra-hydrofran, propylen carbonate, dimethyl surphoxido and gamma-butylolacton. |