ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

An anode active material for a secondary battery according to an embodiment includes comprising a lithium-silicon oxide particle that contains Li2Si2O5 and has a phase fraction ratio of 1.0 or less. A content of lithium elements on a surface of the lithium-silicon oxide particle measured through an...

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Bibliographische Detailangaben
Hauptverfasser: KIM, Nak Won, MOON, Joon Hyung, CHUNG, Ju Ho, PARK, Eun Jun
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:An anode active material for a secondary battery according to an embodiment includes comprising a lithium-silicon oxide particle that contains Li2Si2O5 and has a phase fraction ratio of 1.0 or less. A content of lithium elements on a surface of the lithium-silicon oxide particle measured through an X-ray photoelectron spectroscopy (XPS) analysis based on the total number of atoms on the surface of the lithium-silicon oxide particle measured through the XPS analysis is 10 atomic % or less.