NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL
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United States of America Patent
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Issued Date -
Nov 24, 2022
app pub date -
Aug 6, 2020
filing date -
Aug 6, 2020
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Abstract
A negative electrode active material containing negative electrode active material particles including, silicon compound particles containing a silicon compound containing oxygen, and at least a part of a surface of the silicon compound particles is covered with a carbon layer, wherein the silicon compound particles contain Li6Si2O7 and Li2SiO3. As a result, the negative electrode active material is provided that can increase the battery capacity with the improvement of the initial efficiency, and a capable of realizing sufficient battery cycle characteristics.
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