METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL

METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL

The present invention is a negative electrode active material including: particles of negative electrode active material, wherein the particles of negative electrode active material contain particles of silicon compound containing a silicon compound (SiO x :0.5‰¤x‰¤1.6); the particles of silicon com...

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Hauptverfasser: MATSUNO Takumi, AWANO Hidekazu, KAMO Hiromichi, HIROSE Takakazu, FURUYA Masahiro
Format: Patent
Sprache:eng ; fre ; ger
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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 MATSUNO Takumi
AWANO Hidekazu
KAMO Hiromichi
HIROSE Takakazu
FURUYA Masahiro
description The present invention is a negative electrode active material including: particles of negative electrode active material, wherein the particles of negative electrode active material contain particles of silicon compound containing a silicon compound (SiO x :0.5‰¤x‰¤1.6); the particles of silicon compound contain at least one kind or more of Li 2 SiO 3 and Li 4 SiO 4 ; the particles of negative electrode active material contain Li 2 CO 3 and LiOH on a surface thereof; and a content of the Li 2 CO 3 is 0.01% by mass or more and 5.00% by mass or less relative to a mass of the particles of negative electrode active material and a content of the LiOH is 0.01% by mass or more and 5.00% by mass or less relative to the mass of the particles of negative electrode active material. Thus a negative electrode active material capable of improving initial charge/discharge characteristics and the cycle characteristics when used as a negative electrode active material of the secondary battery is provided.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL
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