Electrode material for non-aqueous solvent-secondary cell, electrode and secondary cell
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United States of America Patent
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Jun 26, 2007
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N/A
app pub date -
Mar 20, 2006
filing date -
Feb 22, 2001
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Abstract
An electrode material comprising a powdery mixture of a metal material (particularly, an intermetallic compound) and a capacitive carbon material each capable of doping and dedoping lithium, and an optionally added fine electroconductive additive, and containing the metal material and the capacitive carbon material in amounts of 5-60 wt. % and 40-95 wt. %, respectively, is used as an active substance for an electrode, particularly a negative electrode, of a non-aqueous solvent secondary cell. As a result, there is provided a non-aqueous solvent secondary cell which has large charge-discharge capacities, a small irreversible capacity determined as a difference between the doping capacity and the de-doping capacity, and also excellent cycle characteristics.
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