AMORPHOUS CARBON MATERIAL FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME
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United States of America Patent
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Jan 27, 2012
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Sep 18, 2007
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Abstract
The amorphous carbon material for the negative electrode of a lithium ion secondary battery of the invention has a true density of 1.800-2.165 g/cm3, but has a true density of 2.255 g/cm3 or greater when subjected to graphitizing in an inert gas atmosphere at a temperature of 3000° C.
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