ACTIVE MATERIAL COMPOSITE PARTICLE, ELECTRODE, SECONDARY BATTERY, AND MANUFACTURING METHOD FOR ACTIVE MATERIAL COMPOSITE PARTICLE

Disclosed is an active material composite particle comprising Si and having excellent cycle characteristics. The active material composite particle of the present disclosure comprises a center portion and a surface layer portion, wherein the center portion comprises a solid electrolyte and a plurali...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIMURA, Hideaki, NAKANISHI, Shinji
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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Beschreibung
Zusammenfassung:	Disclosed is an active material composite particle comprising Si and having excellent cycle characteristics. The active material composite particle of the present disclosure comprises a center portion and a surface layer portion, wherein the center portion comprises a solid electrolyte and a plurality of Si particles, the surface layer portion comprises a polymer and has a carrier ion-conductivity, and a ratio of polymer in the surface layer portion is higher than a ratio of polymer in the center portion.