Nonaqueous electrolyte battery
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United States of America Patent
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Nov 5, 2002
Grant Date -
Nov 7, 2002
app pub date -
Dec 15, 2000
filing date -
Dec 17, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A film case forming a nonaqueous electrolyte battery of this invention is formed by a packaging film including an engineering plastic layer, at least one metallic layer laminated inside the engineering plastic layer, at least one acid resistant layer laminated inside the metallic layer, and at least one water-proof thermoplastic polymer layer laminated inside the acid resistant layer. The acid resistant layer contains a thermoplastic polymer and at least one a metal compound, selected from the group consisting of magnesium oxide and hydrotalcites, in an amount of about 2 parts by weight to about 25 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
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