Non-aqueous battery with a block copolymer sealing member
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United States of America Patent
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Oct 31, 1995
Grant Date -
N/A
app pub date -
Nov 1, 1994
filing date -
Nov 2, 1993
priority date (Note) -
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Abstract
A non-aqueous battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte as well as a battery can serving as a negative electrode-terminal and a sealing terminal serving as a positive electrode-terminal which are crimp-sealed through a gasket comprising a polyolefin resin, wherein the polyolefin resin comprises a block copolymer of propylene and ethylene having an ethylene copolymerization rate ranging from 2 to 20% by weight and a modulus in flexure ranging from 12000 to 18000 kg/cm.sup.2. The non-aqueous battery has substantially improved storage stability when it is not in use and is not deteriorated even when it is subjected to discharge, large current discharge and pulse-discharge in an atmosphere whose temperature varies.
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