NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

The disclosed negative electrode active material for a nonaqueous electrolyte secondary battery includes active material particles containing silicon, and a surface layer formed on surfaces of the active material particles. The surface layer contains a reaction product of a compound allowed to react...

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Bibliographic Details
Main Authors Shibata, Sho, Suzuki, Hirotetsu, Sakata, Motohiro
Format Patent
LanguageEnglish
Published 04.07.2024
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC CHEMISTRY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The disclosed negative electrode active material for a nonaqueous electrolyte secondary battery includes active material particles containing silicon, and a surface layer formed on surfaces of the active material particles. The surface layer contains a reaction product of a compound allowed to react so as to form a siloxane bond. The compound includes a structure represented by Si-R1-Si. The R1 is an atomic group having a chain portion including, as constituent elements, an alkylene group and at least one selected from the group consisting of a sulfur atom, an oxygen atom, and a nitrogen atom. The two Si's are each bound with at least one atomic group selected from the group consisting of an alkoxy group having 1 to 6 carbon atoms, and the like.
Bibliography:Application Number: US202218557308