SILICON OXIDE AND METHOD FOR PRODUCING THE SAME, NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY AND ELECTROCHEMICAL CAPACITOR

PROBLEM TO BE SOLVED: To provide: a silicon oxide which is useful as a negative electrode active material in a negative electrode material for a nonaqueous electrolyte secondary battery that is excellent in cycle characteristics, while maintaining the high battery capacity and low volume expansion o...

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Hauptverfasser: SAITO KOGU, INUKAI TETSUYA, FUKUOKA HIROFUMI, UENO SUSUMU
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creator SAITO KOGU
INUKAI TETSUYA
FUKUOKA HIROFUMI
UENO SUSUMU
description PROBLEM TO BE SOLVED: To provide: a silicon oxide which is useful as a negative electrode active material in a negative electrode material for a nonaqueous electrolyte secondary battery that is excellent in cycle characteristics, while maintaining the high battery capacity and low volume expansion of the silicon oxide; and a method for producing the silicon oxide; a negative electrode comprising the silicon oxide; and a lithium ion secondary battery and an electrochemical capacitor.SOLUTION: A silicon oxide for a nonaqueous electrolyte secondary battery negative electrode material has a Co content of 2-200 ppm.
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subjects BASIC ELECTRIC ELEMENTS
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title SILICON OXIDE AND METHOD FOR PRODUCING THE SAME, NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY AND ELECTROCHEMICAL CAPACITOR
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