Method for producing non-graphitizable carbon material, non-graphitizable carbon material, negative electrode material for lithium-ion secondary battery, and lithium-ion secondary battery
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United States of America Patent
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May 3, 2016
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Jan 15, 2015
app pub date -
Jan 24, 2013
filing date -
Jan 27, 2012
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Abstract
Provided is a method for producing a non-graphitizable carbon material, the method including a step in which a raw material of the non-graphitizable carbon material is subjected to a cross-linking treatment to obtain a cross-linked product; a step in which the cross-linked product is subjected to an infusibility-imparting treatment to obtain an infusibility-imparted product; a step in which the infusibility-imparted product is subjected to a pulverizing treatment; and a step in which the infusibility-imparted product that has been subjected to the pulverizing treatment is fired at 900° C. to 1300° C. to obtain the non-graphitizable carbon material.
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