Method for producing amorphous carbon particles, amorphous carbon particles, 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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Aug 15, 2017
Grant Date -
Oct 2, 2014
app pub date -
Jun 13, 2014
filing date -
Dec 16, 2011
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Abstract
A method for producing amorphous carbon particles comprising includes adding and mixing graphite particles into a precursor of amorphous carbon and then cross-linking the precursor of amorphous carbon to obtain a first cross-linked product, or cross-linking a precursor of amorphous carbon and then adding and mixing graphite particles into the cross-linked precursor of amorphous carbon to obtain a second cross-linked product. Infusibility is imparted to the first or second cross-linked product to obtain an infusibilized product to which infusibility has been imparted. The infusibilized product is baked to obtain amorphous carbon particles. The amorphous carbon particles include the graphite particles and amorphous carbon which embeds the graphite particles.
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