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    • 6. 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
    • US08007938B2
    • 2011-08-30
    • US11578308
    • 2005-04-19
    • Minoru KotatoAsao Kominato
    • Minoru KotatoAsao Kominato
    • H01M6/04C07J21/00C07D493/00
    • H01M10/056H01M4/131H01M4/133H01M4/525H01M4/587H01M10/0525H01M10/0567H01M10/0568H01M2300/004Y02E60/122
    • A non-aqueous electrolyte solution is provided that realizes a large capacity, exhibits high storage characteristics and cycle characteristics, and is capable of inhibiting gas generation. The non-aqueous electrolyte solution comprises a lithium salt; at least one non-aqueous solvent selected from the group consisting of a chain carbonate, a cyclic carbonate, a chain carboxylic acid ester, a cyclic carboxylic acid ester, a chain ether, and a cyclic ether; and a compound expressed by the following formula (II)a wherein R41-R52 independently of each other, represent a hydrogen atom, an alkyl group having 1-12 carbon atoms that may be substituted by a fluorine atom, an alkenyl group having 1-12 carbon atoms that may be substituted by a fluorine atom, an aryl group having 6-12 carbon atoms that may be substituted by a fluorine atom, or an aralkyl group having 7-12 carbon atoms that may be substituted by a fluorine atom, wherein each group R41-R52 may have an ether linkage in its chain, and R41 may be linked with R42, and R43 may be linked with R44, to form a ring, said ring optionally comprising an oxygen atom.
    • 提供了一种实现大容量的非水电解质溶液,具有高储存特性和循环特性,并且能够抑制气体产生。 非水电解液包含锂盐; 至少一种选自链状碳酸酯,环状碳酸酯,链状羧酸酯,环状羧酸酯,链状醚和环状醚的非水性溶剂; 和由下式(II)表示的化合物,其中R 41 -R 52彼此独立地表示氢原子,可以被氟原子取代的具有1-12个碳原子的烷基,具有1- 可以被氟原子取代的12个碳原子,可以被氟原子取代的具有6-12个碳原子的芳基或可以被氟原子取代的具有7-12个碳原子的芳烷基,其中 每个基团R 41 -R 52可以在其链上具有醚键,并且R 41可以与R 42连接,并且R 43可以与R 44连接形成环,所述环任选地包含氧原子。
    • 7. 发明授权
    • Nonaqueous electrolytic solution and lithium secondary battery
    • 非水电解液和锂二次电池
    • US07083878B2
    • 2006-08-01
    • US11026398
    • 2005-01-03
    • Minoru KotatoShinichi KinoshitaKunihisa Shima
    • Minoru KotatoShinichi KinoshitaKunihisa Shima
    • H01M6/16
    • H01M10/0525H01M4/02H01M10/0567H01M10/0568H01M10/0569H01M2004/021H01M2300/0042
    • An object of the invention is to provide such a battery that has a high capacity, is excellent in storage characteristics, cycle characteristics and continuous charging characteristics, and is small in gas generation amount, whereby size reduction and improvement in performance of a lithium secondary battery can be attained.The present invention relates to a nonaqueous electrolytic solution comprising a lithium salt and a nonaqueous solvent dissolving the same, wherein the electrolytic solution contains, as the lithium salt, LiPF6 in a concentration of from 0.2 to 2 mole/L, and LiBF4 and/or a compound represented by the following formula (1) in a molar ratio of from 0.005 to 0.4 with respect to LiPF6, and the nonaqueous solvent mainly comprises (1) ethylene carbonate and/or propylene carbonate, (2-1) a symmetric linear carbonate, (2-2) an asymmetric linear carbonate, and (3) vinylene carbonate.
    • 本发明的目的是提供一种具有高容量,优异的储存特性,循环特性和连续充电特性的电池,并且气体产生量小,从而尺寸减小和锂二次电池性能的提高 可以实现。 本发明涉及一种包含锂盐和溶解该锂盐的非水溶剂的非水电解液,其中该电解溶液含有0.2至2摩尔浓度的LiPF 6锂作为锂盐, 和/或下式(1)表示的化合物相对于LiPF 6的摩尔比为0.005〜0.4,和 非水溶剂主要包括(1)碳酸亚乙酯和/或碳酸亚丙酯,(2-1)对称线性碳酸酯,(2-2)不对称直链碳酸酯和(3)碳酸亚乙烯酯。