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US 2014/0231724 A1Published application
Active material for lithium secondary battery, negative electrode for lithium secondary battery, and lithium secondary battery
AssigneeWaseda University
InventorsTetsuya Osaka, Toshiyuki Momma, Tokihiko Yokoshima, Hiroki Nara
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Abstract
An active material for a lithium secondary battery includes an amorphous and metastable phase which contains silicon, oxygen, and more than 30 at % and 80 at % or less of carbon.
Claims10
An active material for a lithium secondary battery, comprising an amorphous and metastable phase which contains silicon, oxygen and more than 30 at % and 80 at % or less of carbon.
An active material for a lithium secondary battery, which contains silicon, oxygen, more than 30 at % and 80 at % or less of carbon, and lithium, wherein the lithium is a lithium oxide.
Dependencies are inferred from the claim text.