Non-aqueous electrolyte and secondary battery using the same

Disclosed is an electrolyte for a secondary battery comprising an electrolyte salt and an electrolyte solvent, the electrolyte further comprising both a cyclic diester compound and a sulfinyl group-containing compound. Also, disclosed is an electrode having a solid electrolyte interface (SEI) film p...

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Bibliographic Details
Main Authors LEE HOUN, CHO JEONG-JU
Format Patent
LanguageChinese
English
Published 29.06.2011
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:Disclosed is an electrolyte for a secondary battery comprising an electrolyte salt and an electrolyte solvent, the electrolyte further comprising both a cyclic diester compound and a sulfinyl group-containing compound. Also, disclosed is an electrode having a solid electrolyte interface (SEI) film partially or totally formed on a surface thereof, the SEI film being formed by electrical reduction of the above compounds. Further, a secondary battery comprising the electrolyte and/or the electrode is disclosed.
Bibliography:Application Number: CN200780031532