Surface-Treated Steel Sheet for Battery Cases, a Battery Case and a Battery Using It
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United States of America Patent
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Issued Date -
Nov 27, 2008
app pub date -
May 14, 2004
filing date -
Aug 13, 2003
priority date (Note) -
Abandoned
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Abstract
A bakery case-use surface-treated steel sheet excellent in battery performance, a battery case and a battery using it. The battery case is obtained by forming, on the Surface corresponding to a battery case of a inner surface of a steel sheet to be plated a surface-treated steel sheet having a nickel-plated layer as a lower layer and a nickel-phosphorus alloy plated layer or a nickel-cobalt-phosphorus alloy plated layer as an upper layer by a deep drawing method, a DI (drawing and ironing) method or a DTR (drawing thin and redraw) method.
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