Redox shuttles for overcharge protection of lithium batteries
    1.
    发明授权
    Redox shuttles for overcharge protection of lithium batteries 有权
    锂离子电池过充电保护的氧化还原穿梭

    公开(公告)号:US07851092B2

    公开(公告)日:2010-12-14

    申请号:US11366891

    申请日:2006-03-01

    IPC分类号: H01M1/40

    摘要: The present invention is generally related to electrolytes containing novel redox shuttles for overcharge protection of lithium-ion batteries. The redox shuttles are capable of thousands hours of overcharge tolerance and have a redox potential at about 3-5.5 V vs. Li and particularly about 4.4-4.8 V vs. Li. Accordingly, in one aspect the invention provides electrolytes comprising an alkali metal salt; a polar aprotic solvent; and a redox shuttle additive that is an aromatic compound having at least one aromatic ring with four or more electronegative substituents, two or more oxygen atoms bonded to the aromatic ring, and no hydrogen atoms bonded to the aromatic ring; and wherein the electrolyte solution is substantially non-aqueous. Further there are provided electrochemical devices employing the electrolyte and methods of making the electrolyte.

    摘要翻译: 本发明通常涉及含有用于锂离子电池的过充电保护的新的氧化还原梭的电解质。 氧化还原梭能够承受数千小时的过充电容忍,并且具有约3-5.5V相对于Li的氧化还原电位,特别是约4.4-4.8V对Li的氧化还原电位。 因此,一方面,本发明提供了包含碱金属盐的电解质; 极性非质子溶剂; 以及氧化还原穿梭添加剂,其是具有至少一个具有四个或更多个电负性取代基的芳环的芳族化合物,两个或更多个与芳环键合的氧原子,并且没有与芳环键合的氢原子; 并且其中所述电解质溶液基本上是非水的。 还提供了采用电解质的电化学装置和制备电解质的方法。

    Novel redox shuttles for overcharge protection of lithium batteries
    3.
    发明申请
    Novel redox shuttles for overcharge protection of lithium batteries 有权
    锂电池过充电保护的新型氧化还原梭

    公开(公告)号:US20060199080A1

    公开(公告)日:2006-09-07

    申请号:US11366891

    申请日:2006-03-01

    IPC分类号: H01M10/40 H01M2/16 H01M4/62

    摘要: The present invention is generally related to electrolytes containing novel redox shuttles for overcharge protection of lithium-ion batteries. The redox shuttles are capable of thousands hours of overcharge tolerance and have a redox potential at about 3-5.5 V vs. Li and particularly about 4.4-4.8 V vs. Li. Accordingly, in one aspect the invention provides electrolytes comprising an alkali metal salt; a polar aprotic solvent; and a redox shuttle additive that is an aromatic compound having at least one aromatic ring with four or more electronegative substituents, two or more oxygen atoms bonded to the aromatic ring, and no hydrogen atoms bonded to the aromatic ring; and wherein the electrolyte solution is substantially non-aqueous. Further there are provided electrochemical devices employing the electrolyte and methods of making the electrolyte.

    摘要翻译: 本发明通常涉及含有用于锂离子电池的过充电保护的新的氧化还原梭的电解质。 氧化还原梭能够承受数千小时的过充电容忍,并且具有约3-5.5V相对于Li的氧化还原电位,特别是约4.4-4.8V对Li的氧化还原电位。 因此,一方面,本发明提供了包含碱金属盐的电解质; 极性非质子溶剂; 以及氧化还原穿梭添加剂,其是具有至少一个具有四个或更多个电负性取代基的芳环的芳族化合物,两个或更多个与芳环键合的氧原子,并且没有与芳环键合的氢原子; 并且其中所述电解质溶液基本上是非水的。 还提供了采用电解质的电化学装置和制备电解质的方法。

    Electrochemical device having electrolyte including disiloxane
    9.
    发明申请
    Electrochemical device having electrolyte including disiloxane 审中-公开
    含有二硅氧烷的电解质的电化学装置

    公开(公告)号:US20050170254A1

    公开(公告)日:2005-08-04

    申请号:US10971507

    申请日:2004-10-21

    IPC分类号: H01M6/18

    摘要: One example of the disiloxanes include a backbone with a first silicon and a second silicon. The first silicon is linked to a first substituent selected from a group consisting of: a first side chain that includes a cyclic carbonate moiety; a first side chain that includes a poly(alkylene oxide) moiety; and a first cross link links the disiloxane to a second siloxane and that includes a poly(alkylene oxide) moiety. In some instance, the second silicon is linked to a second substituent selected from a group consisting of: a second side chain that includes a cyclic carbonate moiety, and a second side chain that includes a poly(alkylene oxide) moiety.

    摘要翻译: 二硅氧烷的一个实例包括具有第一硅和第二硅的骨架。 第一硅连接到选自下组的第一取代基:包含环状碳酸酯部分的第一侧链; 包含聚(环氧烷)部分的第一侧链; 并且第一交联将二硅氧烷连接到第二硅氧烷并且包括聚(环氧烷)部分。 在一些情况下,第二硅连接到选自包括环状碳酸酯部分的第二侧链和包含聚(环氧烷)部分的第二侧链的第二取代基。