Nonaqueous lithium-type storage element
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United States of America Patent
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Aug 21, 2012
Grant Date -
Oct 7, 2010
app pub date -
Nov 14, 2008
filing date -
Nov 16, 2007
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Abstract
This invention provides a nonaqueous lithium-type storage element using an activated carbon having a specific porous structure in a positive electrode. A storage element using a conventional carbonaceous material in a positive electrode has a problem that, although the capacitance is large, the output characteristics are disadvantageously unsatisfactory. The nonaqueous lithium-type storage element using a material, which can occlude and release lithium ions in a negative electrode, can improve output characteristics while maintaining the energy density of the storage element at a substantially equal value by using, in a positive electrode, an activated carbon, satisfying 0.3
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