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    Additive for non-aqueous electrolyte and secondary battery using the same
    1.
    发明申请
    Additive for non-aqueous electrolyte and secondary battery using the same 有权
    用于非水电解质和二次电池的添加剂

    公开(公告)号：US20090280414A1

    公开(公告)日：2009-11-12

    申请号：US12311121

    申请日：2007-09-20

    申请人： Jeong Hwan Koh ,  Yong Joon Ha ,  Jin Hyun Park ,  Chul Haeng Lee ,  Young Min Lim ,  Jeong Ae Ahn ,  Dmitry Pogozhev

    发明人： Jeong Hwan Koh ,  Yong Joon Ha ,  Jin Hyun Park ,  Chul Haeng Lee ,  Young Min Lim ,  Jeong Ae Ahn ,  Dmitry Pogozhev

    IPC分类号： H01M6/18 ,  H01M6/16

    CPC分类号： H01M10/0567 ,  H01M4/13 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569

    摘要： Disclosed is an electrolyte comprising a compound having both a sulfonate group and a cyclic carbonate group. The electrolyte forms a more stable and dense SEI layer on the surface of an anode, and thus improves the capacity maintenance characteristics and lifespan characteristics of a battery. Also, disclosed is a compound represented by the following Formula 1, and a method for preparing the same by reacting 4-(hydroxyalkyl)-1,3-dioxolan-2-one with a sulfonyl halide compound: wherein each of R1 and R2 independently represents a C1˜C6 alkylene group optionally containing a C1˜C6 alkyl group or C2˜C6 alkenyl group introduced thereto; R3 is selected from the group consisting of a hydrogen atom, C1˜C20 alkyl group, C3˜C8 cyclic alkyl group, C2˜C6 alkenyl group, halo-substituted alkyl group, phenyl group and benzyl group.

    摘要翻译： 公开了包含具有磺酸酯基和环状碳酸酯基的化合物的电解质。 电解质在阳极表面形成更稳定和更致密的SEI层，从而提高电池的容量维持特性和寿命特性。 此外，还公开了由下式1表示的化合物及其制备方法，其中4-（羟烷基）-1,3-二氧戊环-2-酮与磺酰卤化合物反应：其中R 1和R 2各自独立地 表示任选地含有引入其中的C 1〜C 6烷基或C 2〜C 6烯基的C 1〜C 6亚烷基; R3选自氢原子，C1〜C20烷基，C3〜C8环状烷基，C2〜C6烯基，卤素取代的烷基，苯基和苄基。

    Nonaqueous electrolyte for improving performance and lithium secondary battery comprising the same
    3.
    发明授权
    Nonaqueous electrolyte for improving performance and lithium secondary battery comprising the same 有权
    用于改善性能的非水电解质和包含其的锂二次电池

    公开(公告)号：US08119292B2

    公开(公告)日：2012-02-21

    申请号：US11521892

    申请日：2006-09-15

    申请人： Ho Chun Lee ,  Tae Yoon Park ,  Yong Su Choi ,  Soo Jin Yoon ,  Hong Kyu Park ,  Hyun Min Jung ,  Jeong Ae Ahn

    发明人： Ho Chun Lee ,  Tae Yoon Park ,  Yong Su Choi ,  Soo Jin Yoon ,  Hong Kyu Park ,  Hyun Min Jung ,  Jeong Ae Ahn

    IPC分类号： H01M10/40

    CPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/139 ,  H01M10/04 ,  H01M10/052

    摘要： Disclosed is a lithium secondary battery comprising a cathode, an anode, an electrolyte and a separator, wherein the anode comprises an anode active material having a specific surface area of 3 m2/g or less, and the electrolyte comprises 0.1˜6 parts by weight of a propane sultone-based compound based on 100 parts by weight of the electrolyte. The lithium secondary battery solves the problem of performance degradation caused by the use of an increased amount of a propane sultone-based compound required to form a SEI film on the surface of an anode upon the first charge cycle. Also, the lithium secondary battery can provide improved cycle characteristics and high-temperature storage characteristics.

    摘要翻译： 公开了包含阴极，阳极，电解质和隔膜的锂二次电池，其中所述阳极包括比表面积为3m 2 / g以下的负极活性物质，所述电解质包含0.1〜6重量份 的基于100重量份电解质的丙烷磺内酯基化合物。 锂二次电池解决了在第一次充电循环时在阳极表面上使用增加量的形成SEI膜所需的丙烷磺内酯类化合物引起的性能下降的问题。 此外，锂二次电池可以提供改进的循环特性和高温存储特性。