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    • 24. 发明公开
    • 전해액 및 이를 포함하는 리튬이차전지
    • 电解质和锂二次电池包括相同
    • KR1020130079833A
    • 2013-07-11
    • KR1020120000565
    • 2012-01-03
    • 솔브레인 주식회사한양대학교 산학협력단
    • 심은기김종수송한목박경일김동원최지애
    • H01M10/0567H01M10/052H01B1/06H01M10/0569
    • H01M10/0567H01M10/0525H01M10/0568H01M10/0569H01M2300/0025Y02E60/122
    • PURPOSE: An electrolyte is provided to significantly improve fire retardant and thermal stability of a battery while maintaining excellent cycle characteristics. CONSTITUTION: An electrolyte comprises an ionic solution including a positive ion 1-butyl-1-methyl pyrrolidinium as an electrolyte additive. The electrolyte further comprises an organic solvent selected from an ester solvent, an ether solvent, a ketone solvent, an aromatic hydrocarbon solvent, an alkoxyalkane solvent, a carbonate solvent, and a mixture thereof. Also, a lithium secondary battery comprises a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte disposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode face each other. [Reference numerals] (AA) Discharging capacity (mAh/g); (B1) Example 2; (B2) Example 3; (B3) Example 4; (B4) Example 5; (C1) Comparative example 1; (C2) Comparative example 2; (DD) Cycle number
    • 目的:提供电解液以显着提高电池的阻燃性和热稳定性,同时保持优异的循环特性。 构成:电解质包含离子溶液,其包含阳离子1-丁基-1-甲基吡咯烷鎓作为电解质添加剂。 电解质还包括选自酯溶剂,醚溶剂,酮溶剂,芳烃溶剂,烷氧基烷烃溶剂,碳酸酯溶剂及其混合物的有机溶剂。 此外,锂二次电池包括正极,其包括正极活性物质,负极,包括负极活性物质,以及设置在正极和负极之间的电解质,其中正极和负极各自面对 其他。 (附图标记)(AA)放电容量(mAh / g); (B1)实施例2 (B2)实施例3 (B3)实施例4 (B4)实施例5 (C1)比较例1 (C2)比较例2; (DD)循环次数