Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same

    公开(公告)号:US20200052322A1

    公开(公告)日:2020-02-13

    申请号:US16606852

    申请日:2018-09-20

    Applicant: LG Chem, Ltd.

    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In an embodiment, the electrolyte solution includes a lithium salt, an organic solvent, a compound represented by Formula 1 as a first additive, lithium difluorophosphate (LiDFP) as a second additive, wherein the first additive and the second additive are each independently included in an amount of 0.01 wt % to 8.5 wt % based on a total amount of the non-aqueous electrolyte solution. The first additive has metal ion adsorbability and is capable of forming a stable ion conductive film on the surface of an electrode, and a lithium secondary battery in which an abnormal voltage drop phenomenon is improved by including the same.

    GEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME
    48.
    发明申请
    GEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME 审中-公开
    凝胶聚合物电解质和包含其的锂二次电池

    公开(公告)号:US20160028110A1

    公开(公告)日:2016-01-28

    申请号:US14413755

    申请日:2014-10-28

    Applicant: LG Chem, Ltd.

    Abstract: The present disclosure relates to a gel polymer electrolyte including an imide salt, and a lithium secondary battery including the same and having a protective film formed on a cathode tab. Disclosed are a gel polymer electrolyte that allows the production of a secondary battery having excellent quality with no corrosion of a cathode, while using, as an electrolyte, an imide-based salt effective for improvement of output quality and high-temperature storability, as well as a secondary battery including the same.

    Abstract translation: 本公开涉及包含酰亚胺盐的凝胶聚合物电解质和包含该酰亚胺盐的锂二次电池,并且具有形成在阴极片上的保护膜。 公开了一种凝胶聚合物电解质,其可以生产具有优良品质的二次电池,而不会阴极腐蚀,同时使用有效提高输出质量和高温保存性能的酰亚胺盐 作为包含该二次电池的二次电池。

    COMPOSITION FOR GEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    49.
    发明申请
    COMPOSITION FOR GEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME 有权
    用于凝胶聚合物电解质和锂二次电池的组合物,包括它们

    公开(公告)号:US20140220427A1

    公开(公告)日:2014-08-07

    申请号:US14248448

    申请日:2014-04-09

    Applicant: LG Chem, Ltd.

    Abstract: Provided are a composition for a gel polymer electrolyte including i) an electrolyte solution solvent, ii) an ionizable lithium salt, iii) a polymerization initiator, and iv) a monomer having a functional group bondable to metal ions, and a lithium secondary battery including the composition for a gel polymer electrolyte.In a case where the composition for a gel polymer electrolyte of the present invention is used in a lithium secondary battery, since the movement of metal ions dissolved from a cathode to an anode may be prevented or the precipitation of metal on the anode may be reduced, the lifetime of the battery may not only be improved but capacity characteristics of the battery may also be excellent even in the case in which the battery is charged at a high voltage as well as normal voltage

    Abstract translation: 提供一种凝胶聚合物电解质组合物,其包括i)电解质溶液,ii)可电离锂盐,iii)聚合引发剂,和iv)具有可与金属离子键合的官能团的单体,以及锂二次电池,包括 用于凝胶聚合物电解质的组合物。 在本发明的凝胶聚合物电解质组合物用于锂二次电池的情况下,由于可以防止从阴极溶解到阳极的金属离子的移动或金属在阳极上的沉淀可能降低 ,电池的寿命不仅可以改善,而且即使在电池在高电压以及正常电压下被充电的情况下,电池的容量特性也可以是优异的

    Inhibitor of reduction of life cycle of redox shuttle additive and non-aqueous electrolyte and secondary battery comprising the same
    50.
    发明授权
    Inhibitor of reduction of life cycle of redox shuttle additive and non-aqueous electrolyte and secondary battery comprising the same 有权
    减少氧化还原穿梭添加剂和非水电解质及包含其的二次电池的寿命周期的抑制剂

    公开(公告)号:US08673507B2

    公开(公告)日:2014-03-18

    申请号:US13785512

    申请日:2013-03-05

    Applicant: LG Chem, Ltd.

    CPC classification number: H01M10/0567 H01M10/052 H01M10/0564

    Abstract: Disclosed is an inhibitor of the reduction of life cycle of a redox shuttle additive that undergoes oxidation-reduction cycling, the inhibitor being at least of one compound selected from the group consisting of vinylene carbonates, ethylene carbonates, cyclic sulfites and unsaturated sultones. Also, Disclosed is a non-aqueous electrolyte and secondary battery comprising the same inhibitor.

    Abstract translation: 公开了减少氧化还原循环的氧化还原穿梭添加剂的生命周期的抑制剂,该抑制剂是至少一种选自碳酸亚乙烯酯,碳酸亚乙酯,环状亚硫酸酯和不饱和磺内酯的化合物。 此外,公开了包含相同抑制剂的非水电解质和二次电池。

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