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    • 22. 发明公开
    • 리튬전지용 비수전해액
    • 用于锂电池的非电解电解质溶液
    • KR1020040061563A
    • 2004-07-07
    • KR1020020087834
    • 2002-12-31
    • 제일모직주식회사
    • 전종호양호석김종섭
    • H01M10/05
    • H01M10/0567H01M10/052H01M10/0569
    • PURPOSE: A nonaqueous electrolyte solution for a lithium battery is provided, to improve the stabilities to electrochemical degradation and overcharge, thereby allowing an electrode pack to be miniaturized. CONSTITUTION: The nonaqueous electrolyte solution comprises 100 parts by weight of an organic solvent mixture of linear and cyclic carbonate-based organic solvents which contains 0.8-2 M lithium salt; and 0.1-10 parts by weight of a diphenyl ether derivative represented by the formula 1, wherein X is a halogen atom; and n is an integer of 1-5. Preferably the lithium salt is at least one selected from the group consisting of LiPF6, LiClO4, LiAsF6, LiBF4, BETI and HQ115; the cyclic carbonate-based organic solvent is at least one selected from the group consisting of ethylene carbonate and propylene carbonate; and the linear carbonate-based organic solvent is at least one selected from the group consisting of carbonate dimethyl, carbonate diethyl, carbonate methylpropyl and carbonate ethylmethyl.
    • 目的:提供用于锂电池的非水电解液,以改善电化学劣化和过充电的稳定性,从而使电极组件小型化。 构成:非水电解液包含100重量份含有0.8-2M锂盐的直链和环状碳酸酯基有机溶剂的有机溶剂混合物; 和0.1-10重量份由式1表示的二苯醚衍生物,其中X为卤素原子; n为1-5的整数。 锂盐优选为选自LiPF 6,LiClO 4,LiAsF 6,LiBF 4,BETI和HQ115中的至少一种; 环状碳酸酯类有机溶剂为选自碳酸亚乙酯和碳酸亚丙酯中的至少一种; 直链碳酸酯类有机溶剂是选自碳酸二甲酯,碳酸二乙酯,碳酸甲酯丙酯和碳酸乙酯的至少一种。