Negative electrode active material for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery

Negative electrode active material for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery

A negative electrode active material for a lithium ion secondary battery contains a silicon oxide particle having carbon present on a part or all of a surface of the particle, where a ratio (PSi/PSiO2) of an X-ray diffraction peak intensity at 2[theta]=27 DEG to 29 DEG derived from Si to an X-ray di...

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Hauptverfasser: YASUDA, AKIRA, OHSAKI, YOSHIE, NISHIDA, TATSUYA
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Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator YASUDA, AKIRA
OHSAKI, YOSHIE
NISHIDA, TATSUYA
description A negative electrode active material for a lithium ion secondary battery contains a silicon oxide particle having carbon present on a part or all of a surface of the particle, where a ratio (PSi/PSiO2) of an X-ray diffraction peak intensity at 2[theta]=27 DEG to 29 DEG derived from Si to an X-ray diffraction peak intensity at 2[theta]=20 DEG to 25 DEG derived from SiO2 is in a range of from 1.0 to 2.6, when using Cu K[alpha] rays having a wavelength of 0.15406 nm as a radiation source, and a specific surface area calculated based on adsorption of carbon dioxide at 273K is 8.5 m2/g or less.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Negative electrode active material for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery
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