利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

24 条记录 (耗时 0.028 秒)

    Additives for non-aqueous electrolytes and electrochemical device using the same
    17.
    发明授权
    Additives for non-aqueous electrolytes and electrochemical device using the same 有权
    非水电解质添加剂和使用其的电化学装置

    公开(公告)号：US07824578B2

    公开(公告)日：2010-11-02

    申请号：US11521780

    申请日：2006-09-15

    申请人： Ho Chun Lee ,  Tae Yoon Park ,  Yong Su Choi ,  Soo Jin Yoon ,  Hong Kyu Park

    发明人： Ho Chun Lee ,  Tae Yoon Park ,  Yong Su Choi ,  Soo Jin Yoon ,  Hong Kyu Park

    IPC分类号： H01M10/0567 ,  H01M10/05 ,  H01M6/16

    CPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/62 ,  H01M10/052 ,  H01M2300/0025 ,  Y02T10/7011

    摘要： Disclosed is an electrolyte for batteries, which comprises: (a) an electrolyte salt; (b) an electrolyte solvent; and (c) a sulfonate-based compound containing at least one electron withdrawing group (EWG) selected from the group consisting of a cyano group (—CN), an isocyanate group (—NCO), a thiocyanate group (—SCN) and an isothiocyanate group (—NCS). An electrode comprising the sulfonate-based compound or a chemical reaction product thereof, partially or totally formed on the surface thereof, and an electrochemical device comprising the electrolyte and/or the electrode are also disclosed. The electrochemical device using the sulfonate-based compound containing a cyano group, an isocyanate group, a thiocyanate group and/or an isothiocyanate group as an additive for electrolytes can provide significantly improved high-temperature lifespan characteristics.

    摘要翻译： 公开了一种电池用电解质，其包括：（a）电解质盐; （b）电解质溶剂; 和（c）含有至少一个选自氰基（-CN），异氰酸酯基（-NCO），硫氰酸酯基（-SCN）和 - 氰基）的吸电子基团（EWG）的磺酸酯基化合物和 异硫氰酸酯基团（-NCS）。 还公开了包含部分或全部形成在其表面上的磺酸盐基化合物或其化学反应产物的电极和包含电解质和/或电极的电化学装置。 使用含有氰基，异氰酸酯基，硫氰酸酯基和/或异硫氰酸酯基作为电解质添加剂的磺酸基类化合物的电化学装置可以显着提高高温寿命特性。

    Lithium manganese secondary battery
    20.
    发明授权
    Lithium manganese secondary battery 有权

    公开(公告)号：US09947915B2

    公开(公告)日：2018-04-17

    申请号：US11676723

    申请日：2007-02-20

    申请人： Sun Kyu Kim ,  Kyung Min Jun ,  Seung Don Choi ,  Hong Kyu Park

    发明人： Sun Kyu Kim ,  Kyung Min Jun ,  Seung Don Choi ,  Hong Kyu Park

    IPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525

    CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525 ,  Y02T10/7011

    摘要： Disclosed is a manganese-based lithium secondary battery comprising a cathode containing manganese-based lithium metal oxide, an anode, and an electrolyte, wherein the anode comprises an anode active material in which a Mn scavenger capable of reducing manganese ions on a surface by conducting or semiconducting properties is coated on part or all of anode active material particles. Through the use of the Mn scavenger, manganese ion dissolved from the manganese-based cathode active material into the electrolyte is preferentially deposited on the Mn scavenger coated on the surface of the anode active material particles, such that the dissolved manganese ion is inhibited from being deposited directly on the surface of the anode active material, and a decomposition of the electrolyte with the deposited manganese component is inhibited. Accordingly, the use of the Mn scavenger can provide a manganese-based lithium secondary battery having excellent storage performance.