NON-AQUEOUS ELECTROLYTE AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME

• Main Authors: CHO, JEONG JU, LEE, HO CHUN, YOON, SU JIN
• Format: Patent
• Language: English
• Published: 28.03.2008
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A non-aqueous electrolyte is provided to optimize the characteristics of a solid electrolyte interphase layer, and improve high-temperature life characteristics of an electrochemical device. A non-aqueous electrolyte includes a first acrylate compound having one or two acryl groups, a second acrylate compound having at least three acryl groups, an electrolyte salt, and an organic solvent. An electrode has the surface on which a coating layer is partially and wholly formed, wherein the coating layer contains (i) a reduced material of the first acrylate compound having one or two acryl groups and (ii) a reduced material of the second acrylate compound having at least three acryl groups.