Non-aqueous electrolyte and electrochemical device comprising the same
AssigneeLG Chem, Ltd.
InventorsJeong-Ju Cho, Ho-Chun Lee, Su-Jin Yoon, Soo-Min Park
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Abstract
Disclosed is a non-aqueous electrolyte comprising: an acrylate compound; a sulfinyl group-containing compound; an organic solvent; and an electrolyte salt. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of an acrylate compound; and (ii) a reduced form of a sulfinyl group-containing compound. Further, disclosed is an electrochemical device comprising a cathode, an anode and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the aforementioned non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the aforementioned electrode.
Claims4
An electrochemical device comprising a cathode, an anode and a non-aqueous electrolyte solution, wherein:
- (i) the non-aqueous electrolyte solution comprises:
- (A) a mixture of compounds suitable for producing a solid electrolyte interface (SEI) layer on an electrode, the compounds consisting essentially of:
- (1) an acrylate compound;
- and
- (2) a sulfinyl group-containing compound;
- (B) an organic solvent, and;
- (C) an electrolyte salt;
- and/or
- (ii) the cathode and/or the anode comprises a SEI layer formed partially or totally on a surface thereof, the SEI layer consisting essentially of:
- (D) a reduced form of the acrylate compound;
- and
- (E) a reduced form of the sulfinyl group-containing compound.
Dependencies are inferred from the claim text.