Overcharge protection for electrochemical cells
    1.
    发明申请
    Overcharge protection for electrochemical cells 有权
    电化学电池过充保护

    公开(公告)号:US20050227143A1

    公开(公告)日:2005-10-13

    申请号:US11097810

    申请日:2005-04-01

    摘要: The invention relates to an improvement in a cell which is normally susceptible to damage from overcharging comprised of a negative electrode, a positive electrode, and an electrolyte comprised of an overcharge protection salt carried in a carrier or solvent. Representative overcharge protection salts are embraced by the formula: MaQ where M is an electrochemically stable cation selected from the group consisting of alkali metal, alkaline earth metal, tetraalkylammonium, or imidazolium groups, and Q is a borate or heteroborate cluster and a is the integer 1 or 2.

    摘要翻译: 本发明涉及电池的改进,该电池通常容易受到由负载电极,正电极和包含负载在载体或溶剂中的过充电保护盐构成的电解质的过充电的损害。 代表性的过充电保护盐包含下列公式:<?in-line-formula description =“In-line Formulas”end =“lead”?> M Q <?in-line-formula description =“In-line Formulas”end =“tail”?>其中M是选自碱金属,碱土金属,四烷基铵或咪唑鎓基团的电化学稳定阳离子,Q是硼酸盐或异硼酸盐簇和 是整数1或2。

    Overcharge protection for electrochemical cells
    2.
    发明授权
    Overcharge protection for electrochemical cells 有权
    电化学电池过充保护

    公开(公告)号:US07785740B2

    公开(公告)日:2010-08-31

    申请号:US11097810

    申请日:2005-04-01

    IPC分类号: H01M10/056

    摘要: The invention relates to an improvement in a cell which is normally susceptible to damage from overcharging comprised of a negative electrode, a positive electrode, and an electrolyte comprised of an overcharge protection salt carried in a carrier or solvent. Representative overcharge protection salts are embraced by the formula: MaQ where M is an electrochemically stable cation selected from the group consisting of alkali metal, alkaline earth metal, tetraalkylammonium, or imidazolium groups, and Q is a borate or heteroborate cluster and a is the integer 1 or 2.

    摘要翻译: 本发明涉及电池的改进,该电池通常容易受到由负载电极,正电极和包含负载在载体或溶剂中的过充电保护盐构成的电解质的过充电的损害。 代表性的过充电保护盐包括下式:其中M是选自碱金属,碱土金属,四烷基铵或咪唑鎓基团的电化学稳定阳离子,Q是硼酸盐或异硼酸盐簇,a是整数 1或2。

    Electrolytes, cells and methods of forming passivation layers
    4.
    发明申请
    Electrolytes, cells and methods of forming passivation layers 审中-公开
    电解质,电池和形成钝化层的方法

    公开(公告)号:US20060216612A1

    公开(公告)日:2006-09-28

    申请号:US11300287

    申请日:2005-12-15

    IPC分类号: H01M10/40 B05D5/12 H01M10/44

    摘要: Electrolytes having a second cycle reduction current at 0.3 V vs Li/Li+ that is less than that of the first cycle. The electrolyte comprising a salt, which will not electrochemically passivate. A cell comprising a positive electrode, a negative electrode and an electrolyte having a second cycle reduction current at 0.3 V vs Li/Li+ that is less than that of the first cycle, said electrolyte comprising a salt, which will not electrochemically passivate. A method of forming an SEI layer in a cell comprising a positive electrode, a negative electrode and an electrolyte, said method comprising the step of overcharging the electrolyte prior to fabricating the cell, or said cell during the formation cycle.

    摘要翻译: 在0.3V下具有小于第一循环的电解液的Li / Li +的第二循环降低电流的电解质。 电解质包含不会电化学钝化的盐。 一种包含正极,负极和电解质的电池,其具有小于第一循环的电压的0.3V对Li / Li +的第二循环还原电流,所述电解质包含盐, 这不会电化学钝化。 一种在包括正极,负极和电解质的电池中形成SEI层的方法,所述方法包括在制造电池或在形成循环期间所述电池之前对电解液进行过充电的步骤。

    Stable electrolyte counteranions for electrochemical devices
    5.
    发明申请
    Stable electrolyte counteranions for electrochemical devices 审中-公开
    用于电化学装置的稳定的电解质阴离子

    公开(公告)号:US20070048605A1

    公开(公告)日:2007-03-01

    申请号:US11504039

    申请日:2006-08-15

    IPC分类号: H01M10/40 C07F5/02

    摘要: The invention relates to electrolyte salts for electrochemical devices of improved physical, chemical and electrochemical stability. The improvement resides in the use of anions of salts of the formula comprising: i) (B12FxZ12-x)2− wherein Z comprises at least one of H, Cl, Br or OR; R comprises at least one of H, alkyl or fluoroalkyl, or at least one polymer and x is at least 3 on an average basis but not more than 12; ii) ((R′R″R′″)NB12FxZ(11-x))−, wherein N is bonded to B and each of R′, R″, R′″ comprise a member independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl and a polymer; Z comprises H, Cl, Br, or OR, where R comprises H, alkyl or perfluoroalkyl or a polymer, and x is an integer from 0 to 11; or iii) (R″″CB11FxZ(11-x))−, wherein R″″ is bonded to C and comprises a member selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, and a polymer, Z comprises H, Cl, Br, or OR, wherein R comprises H, alkyl or perfluoroalkyl or a polymer, and x is an integer from 0 to 11.

    摘要翻译: 本发明涉及具有改进的物理,化学和电化学稳定性的电化学装置的电解质盐。 改进之处在于使用下式的盐阴离子,其包含:i)(B 12 R x Z 12-x N) 其中Z包括H,Cl,Br或OR中的至少一个; R包含H,烷基或氟烷基或至少一种聚合物中的至少一种,x平均为至少3,但不超过12; ii)((R'R''R“')NB 12 F x(11-x)) - 其中N与B键合,R',R“,R”'中的每一个包含独立地选自氢,烷基,环烷基,芳基和聚合物的成员; Z包括H,Cl,Br或OR,其中R包括H,烷基或全氟烷基或聚合物,x是0至11的整数; 或iii)(R“'CB 11)X Z(11-x)) - - - - 其中R“'键合到C并且包含选自氢,烷基,环烷基,芳基和聚合物的成员,Z包括H,Cl,Br或OR,其中R包括H,烷基或 全氟烷基或聚合物,x为0至11的整数。