Anode material for secondary battery and secondary batteries using the same
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United States of America Patent
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Issued Date -
Jul 12, 2007
app pub date -
Jan 8, 2007
filing date -
Jan 11, 2006
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Abandoned
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Abstract
Disclosed are an anode material for a secondary battery and a secondary battery using the same. The present invention provides the anode material for a secondary battery, produced by coating a high-crystallinity core carbonaceous material with a coating carbonaceous material and calcining the high-crystallinity core carbonaceous material, wherein the anode material for a secondary battery has a delamination area of 0.1.times.10.sup.-5 to 1.0.times.10.sup.-4 or a volume fraction of water uptake of 0.01 or less. The secondary battery according to the present invention may be useful to improve a charging/discharging capacity and a charging/discharging efficiency of the battery and ensure a stability of the battery since the battery has an improved protection against a degradation reaction of an electrolyte if the battery is produced using the anode material for a secondary battery.
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