Non-aqueous electrolytic solution and lithium secondary battery
    16.
    发明申请
    Non-aqueous electrolytic solution and lithium secondary battery 有权
    非水电解液和锂二次电池

    公开(公告)号:US20070082271A1

    公开(公告)日:2007-04-12

    申请号:US10579249

    申请日:2004-11-11

    IPC分类号: H01M10/40 H01M10/44

    摘要: The present invention provides a lithium secondary battery which is improved in cycle characteristics and storage stability at an elevated temperature as well as protection from overcharge. In the battery, generation of a gas is also inhibited to prevent the battery from expansion. A non-aqueous electrolytic solution for the lithium secondary battery has an electrolyte in a non-aqueous solvent. The non-aqueous solvent is composed of a cyclic carbonate compound, a linear carbonate compound and a cyclohexylbenzene compound having a benzene ring to which one or two halogen atoms are attached. A volume ratio of the cyclic carbonate compound and the linear carbonate compound in the non-aqueous solvent is in the range of 20:80 to 40:60, or the non-aqueous solvent further contains a small amount of a branched alkylbenzene compound.

    摘要翻译: 本发明提供一种锂二次电池,其在高温下的循环特性和储存稳定性得到改善,并且防止过充电。 在电池中,也抑制气体的产生,防止电池膨胀。 用于锂二次电池的非水电解液在非水溶剂中具有电解质。 非水溶剂由环状碳酸酯化合物,直链状碳酸酯化合物和具有一个或两个卤素原子的苯环的环己基苯化合物组成。 环状碳酸酯化合物和直链碳酸酯化合物在非水溶剂中的体积比在20:80〜40:60的范围内,或者非水溶剂还含有少量的支链烷基苯化合物。

    Non-aqueous secondary battery having enhanced discharge capacity retention
    17.
    发明授权
    Non-aqueous secondary battery having enhanced discharge capacity retention 有权
    具有增强放电容量保持性的非水二次电池

    公开(公告)号:US06866966B2

    公开(公告)日:2005-03-15

    申请号:US10021130

    申请日:2001-10-22

    摘要: A discharge capacity retention of a non-aqueous secondary battery is enhanced by incorporating into its non-aqueous electrolytic solution a small amount of a substituted diphenyldisulfide derivative in which each of the diphenyl groups has a substituent such as alkoxy, alkenyloxy, alkynyloxy, cycloalkyloxy, aryloxy, acyloxy, alkanesulfonyloxy, arylsulfonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, halogen, CF3, CCl3, or CBr3. Preferably, a small amount of methyl 2-propylcarbonate, 2-propynyl methanesulfonate, 1,3-propanesultone, divinylsulfone, 1,4-butanediol dimethanesulfonate or cyclohexylbenzene is further incorporated.

    摘要翻译: 通过在其非水电解液中加入少量二苯基中具有取代基的取代二苯基二硫化物衍生物,例如烷氧基,烯氧基,炔氧基,环烷氧基, 芳氧基,酰氧基,烷磺酰氧基,芳基磺酰氧基,烷氧基羰基氧基,芳氧基羰基氧基,卤素,CF 3,CCl 3或CBr 3。 优选少量的碳酸2-丙酯,2-丙炔基甲磺酸酯,1,3-丙磺酸内酯,二乙烯基砜,1,4-丁二醇二甲磺酸酯或环己基苯。

    Non-aqueous electrolytic solution and lithium secondary battery
    19.
    发明授权
    Non-aqueous electrolytic solution and lithium secondary battery 有权
    非水电解液和锂二次电池

    公开(公告)号:US07794885B2

    公开(公告)日:2010-09-14

    申请号:US10579249

    申请日:2004-11-11

    IPC分类号: H01M6/16

    摘要: The present invention provides a lithium secondary battery which is improved in cycle characteristics and storage stability at an elevated temperature as well as protection from overcharge. In the battery, generation of a gas is also inhibited to prevent the battery from expansion. A non-aqueous electrolytic solution for the lithium secondary battery has an electrolyte in a non-aqueous solvent. The non-aqueous solvent is composed of a cyclic carbonate compound, a linear carbonate compound and a cyclohexylbenzene compound having a benzene ring to which one or two halogen atoms are attached. A volume ratio of the cyclic carbonate compound and the linear carbonate compound in the non-aqueous solvent is in the range of 20:80 to 40:60, or the non-aqueous solvent further contains a small amount of a branched alkylbenzene compound.

    摘要翻译: 本发明提供一种锂二次电池,其在高温下的循环特性和储存稳定性得到改善,并且防止过充电。 在电池中,也抑制气体的产生,防止电池膨胀。 用于锂二次电池的非水电解液在非水溶剂中具有电解质。 非水溶剂由环状碳酸酯化合物,直链状碳酸酯化合物和具有一个或两个卤素原子的苯环的环己基苯化合物组成。 环状碳酸酯化合物和直链碳酸酯化合物在非水溶剂中的体积比在20:80〜40:60的范围内,或者非水溶剂还含有少量的支链烷基苯化合物。

    Non-aqueous secondary battery having increased discharge capacity retention
    20.
    发明授权
    Non-aqueous secondary battery having increased discharge capacity retention 有权
    具有增加放电容量保持性的非水二次电池

    公开(公告)号:US07691539B2

    公开(公告)日:2010-04-06

    申请号:US10383790

    申请日:2003-03-06

    IPC分类号: H01M6/16

    摘要: A method of increasing the discharge capacity retention of a non-aqueous lithium ion secondary battery having a positive electrode active material, a combination of a lithium element and a complex metal oxide, a negative electrode, and a non-aqueous electrolytic solution comprising an electrolyte dissolved in a non-aqueous solvent which is a combination of a cyclic carbonate and a linear carbonate by incorporating a disulfide derivative having the formula: R1—S—S—R2 wherein each of R1 and R2 independently represents a phenyl group, a benzyl group, a tolyl group, a pyridyl group, a pyrimidyl group, an alkyl group having 1 to 12 carbon atom, or a cycloalkyl group having 3 to 6 carbon atoms, in which each group has no substituent groups or has one or more alkyl groups into the non-aqueous electrolytic solution.

    摘要翻译: 提高具有正极活性物质,锂元素和复合金属氧化物的组合的非水性锂离子二次电池的放电容量保持性的方法,负极和包含电解质的非水电解液 溶解在环状碳酸酯和直链碳酸酯的组合的非水溶剂中,加入具有下式的二硫化物衍生物:R1-S-S-R2,其中R1和R2各自独立地表示苯基,苄基 ,甲苯基,吡啶基,嘧啶基,碳原子数1〜12的烷基或碳原子数3〜6的环烷基,各基团不具有取代基或具有一个以上的烷基 非水电解液。