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    • 1. 发明授权
    • Electrode for lithium secondary battery
    • 锂二次电池用电极
    • US08445143B2
    • 2013-05-21
    • US11056290
    • 2005-02-11
    • Young Soo KimSoon Ho Ahn
    • Young Soo KimSoon Ho Ahn
    • H01M6/16
    • H01M4/0419H01M4/0402H01M4/0404H01M4/139H01M4/62H01M4/628H01M10/0525H01M10/0567H01M10/4235H01M2300/004
    • Disclosed is an electrode comprising an aliphatic nitrile compound, wherein the aliphatic nitrile compound is coated on a surface of the electrode or is incorporated into the electrode active materials. A lithium secondary battery having the electrode is also disclosed. The lithium secondary battery has excellent safety so as to prevent ignition and explosion generated when the internal temperature of the battery is increased due to the heat emission caused by the reaction of an electrolyte with a cathode and the structural collapse of a cathode occurring upon overcharge. Additionally, it is also possible to prevent ignition and explosion when the battery is exposed to high temperature due to an increase in temperature resulting from heating or local short circuit caused by physical impacts. Further, it is possible to solve the problems of an increase in viscosity and degradation in battery performance at a low temperature occurring when an aliphatic nitrile compound is used as an additive for electrolyte.
    • 公开了一种包含脂族腈化合物的电极,其中脂肪族腈化合物被涂覆在电极的表面上,或者被结合到电极活性材料中。 还公开了具有电极的锂二次电池。 锂二次电池具有优异的安全性,以防止由于电解质与阴极的反应引起的热发射和过充电时发生的阴极的结构崩溃,电池的内部温度升高时产生的点火和爆炸。 此外,当由于物理冲击导致的加热导致的温度升高或局部短路导致电池暴露于高温时,也可以防止点火和爆炸。 此外,可以解决当使用脂族腈化合物作为电解质添加剂时发生的低温下的粘度增加和电池性能劣化的问题。
    • 9. 发明申请
    • Non-Aqueous Electrolyte and Electrochemical Device With an Improved Safety
    • 非水电解质和电化学装置具有改进的安全性
    • US20090047582A1
    • 2009-02-19
    • US12087813
    • 2007-01-12
    • Young Soo KimSoon Ho AhnJoon Sung BaeCha Hun KuSoo Hyun HaDuk Hyun RyuSei Lin Yoon
    • Young Soo KimSoon Ho AhnJoon Sung BaeCha Hun KuSoo Hyun HaDuk Hyun RyuSei Lin Yoon
    • H01M10/40
    • H01M10/0567H01M4/13H01M4/139H01M10/052H01M10/056H01M10/0569H01M10/4235H01M2300/004Y02E60/122Y02P70/54
    • Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1. Moreover, disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product. In addition, disclosed is an electrochemical device comprising: an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product.
    • 公开了包含锂盐和溶剂的非水电解质,所述电解质包含基于电解质重量的10-40重量%的式1化合物或其分解产物,和1-40重量%的 脂族腈化合物,以及包含非水电解质的电化学装置。 还公开了一种电化学装置,包括:阴极,其在阴极活性材料的表面和脂族腈化合物之间形成复合物; 以及在其上形成有包含式1化合物的分解产物的涂层的阳极。此外,公开了一种电化学装置,其包括:阴极,其在阴极活性物质的表面和脂族腈化合物之间形成复合体; 和含有式1化合物或其分解产物的非水电解质。 此外,公开了一种电化学装置,其包括:阳极,其上形成有包含式1化合物的分解产物的涂层; 和含有式1化合物或其分解产物的非水电解质。