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    • 14. 发明授权
    • Nonaqueous electrolyte solution and lithium secondary battery using same
    • 非水电解液和锂二次电池使用相同
    • US09209479B2
    • 2015-12-08
    • US12083005
    • 2006-10-12
    • Akio HiwaraTakashi Hayashi
    • Akio HiwaraTakashi Hayashi
    • H01M6/14H01M10/052H01M6/16H01G9/022H01G11/62H01M10/0567H01M10/0569
    • H01M10/052H01G9/038H01G11/62H01M6/14H01M6/16H01M10/0567H01M10/0569H01M2300/0017H01M2300/0037Y02E60/122Y02E60/13
    • Disclosed is a nonaqueous electrolyte solution containing a sultone compound represented by the Formula 1 below (wherein R1 to R4 respectively represent a hydrogen, a fluorine, a hydrocarbon group with 1 to 12 carbon atoms that may contain fluorine atom(s), n represents an integer of 0 to 3, and when n is 2 or 3, the two or three R3 groups are independent from each other and the two or three R4 groups are independent from each other), and an ethylene carbonate having a hydrogen atom substituted by a fluorine atom. Also disclosed is a lithium secondary battery employing the nonaqueous electrolyte solution. This nonaqueous electrolyte solution does not cause an increase in the internal resistance of a nonaqueous electrochemical device and improves the lifespan characteristics of the device. The lithium secondary battery containing the nonaqueous electrolyte solution exhibits greatly improved cycle charge/discharge characteristics at high temperature, and has excellent charge/discharge load characteristics.
    • 公开了含有下式1所示的磺内酯化合物(其中,R1〜R4分别表示氢,氟,可含有氟原子的碳原子数1〜12的烃基)的非水电解液,n表示 0〜3的整数,当n为2或3时,两个或三个R 3基彼此独立,两个或三个R 4基彼此独立),具有氢原子的碳酸亚乙酯由 氟原子。 还公开了使用非水电解质溶液的锂二次电池。 这种非水电解质溶液不会引起非水电化学装置的内阻增加并且提高了装置的寿命特性。 含有非水电解质溶液的锂二次电池在高温下表现出显着改善的循环充放电特性,并且具有优异的充放电负荷特性。