Electrode material and method for producing the same
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United States of America Patent
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Oct 7, 2003
Grant Date -
N/A
app pub date -
Apr 23, 2001
filing date -
Aug 25, 1998
priority date (Note) -
In Force
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Abstract
Disclosed are electrode materials that exhibit very sharp pore size distribution within the range of mesopores and include pores having a pore diameter within a range of X.+-..alpha. nm (3.0.ltoreq.X<10, .alpha.=1.0; range of pore size distribution) of which volume accounts for 15% or more of the total volume of mesopores having a pore diameter within a range from 2.0 to 50 nm, and are suited for use in electric double layer capacitor, battery or the like of large capacitance and discharge of large current. These electrode materials are obtained by adding at least one transition metal or at least one transition metal compound to a carbon material or a carbon material precursor, and subjecting to a heat treatment at a temperature of 600.degree. C. or higher.
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