NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

Abstract: there is provided an anode material for a lithium ion secondary battery, which includes silicon particles. the silicon particles have an average particle diameter of 0.1 �m to 10 �m and an oxygen content of 0.1 wt % or more and 8 wt % or less. in a case where a surface of the silicon particles is analyzed using x-ray photoelectron spectroscopy, an integrated intensity ratio obtained by dividing an integrated intensity of a siopeak by an integrated intensity of a si peak is 0.4 or more and 3.0 or less.

Inventor(s): Shin FUJITA, Takashi MORI

CPC Classification: H01M4/485 (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY)

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