Organic electrolyte batteries
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsAkihiro Sano, Shuichi Nishino, Fumio Daio, Shusuke Oguro, Masatsugu Kondo
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Abstract
A general purpose organic electrolyte cell usable for long-periods or usable after long periods of storage even in a high temperature environment exceeding 150.degree. C. The positive and the negative electrodes are separated by using a separator made of porous synthetic resin sheet having a melting point of at least 170.degree. C., and a gasket made of thermoplastic resin having a continuous usable temperature of at least 150.degree. C. on which a sealant layer made mainly of blown-asphalt is disposed.
Claims15
An organic electrolyte cell comprising a negative electrode of an active material selected from the group consisting of lithium, a lithium alloy, and an intercalation compound formed between lithium and carbon or a metal oxide, and an organic electrolyte obtained by dissolving lithium salt as a solute into a single organic solvent or mixed organic solvent having a boiling point of at least 170.degree. C.;
- wherein the positive electrode and the negative electrode are separated by a separator made of porous synthetic resin sheet having a melting point of at least 170.degree. C., and a gasket consisting essentially of a thermoplastic synthetic resin having a continuously usable temperature of at least 150.degree. C., said gasket having a surface pre-coated with a sealant layer consisting essentially of blown-asphalt, said gasket inserted between a metal container of positive polarity and a metal container of negative polarity, said metal containers sealed by curling the upper flange of one of said metal container of positive polarity and said metal container of negative polarity, and by applying pressure on said gasket inserted between said metal containers.
An organic electrolyte cell having a positive electrode consisting essentially of graphite fluoride and a negative electrode consisting of metallic lithium separated by a separator made of a porous synthetic resin having a melting point of at least 170.degree. C. and a gasket made entirely or substantially of thermoplastic synthetic resin having a continuously usable temperature of at least 150.degree. C., pre-coated with a sealant layer consisting essentially of blown-asphalt on the surface of said gasket inserted between one of a metal container of positive polarity and a metal container of negative polarity, the containers sealed by curling an upper flange of either of one of said metal containers of positive polarity or of negative polarity, and by applying pressure on said gasket inserted between said metal containers.
Dependencies are inferred from the claim text.