METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL PARTICLE

METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL PARTICLE

Methods for producing a negative electrode active material particle which includes a silicon compound particle containing a silicon compound that contains oxygen. The methods including preparing a silicon compound particle containing a silicon compound that contains oxygen; inserting Li into the sil...

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Bibliographische Detailangaben
Hauptverfasser: AWANO, Hidekazu, HIROSE, Takakazu, TAKAHASHI, Kohta, MATSUNO, Takumi, SAKAI, Reiko
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:Methods for producing a negative electrode active material particle which includes a silicon compound particle containing a silicon compound that contains oxygen. The methods including preparing a silicon compound particle containing a silicon compound that contains oxygen; inserting Li into the silicon compound particle; and heating, while stirring, the Li-inserted silicon compound particle in a furnace to produce a negative electrode active material particle, wherein at least part of Si constituting the silicon compound particle is present in at least one state selected from oxide of Si2+ to Si3+ containing no Li, and compound containing Li and Si2+ to Si3+.