Electrochemical device having electrolyte including disiloxane
    1.
    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。

    Solid polymer electrolyte and method of preparation
    5.
    发明申请
    Solid polymer electrolyte and method of preparation 有权
    固体高分子电解质及其制备方法

    公开(公告)号:US20050019667A1

    公开(公告)日:2005-01-27

    申请号:US10496230

    申请日:2003-01-22

    摘要: Disclosed is an improved solid electrolyte made of an interpenetrating network type solid polymer comprised of two compatible phases: a crosslinked polymer for mechanical strength and chemical stability, and an ionic conducting phase. The highly branched siloxane polymer of the present invention has one or more poly(ethylene oxide) (“PEO”) groups as a side chain. The PEO group is directly grafted to silicon atoms in the siloxane polymer. This kind of branched type siloxane polymer is stably anchored in the network structure and provides continuous conducting paths in all directions throughout the IPN solid polymer electrolyte. Also disclosed is a method of making an electrochemical cell incorporating the electrolyte. A cell made accordingly has an extremely high cycle life and electrochemical stability.

    摘要翻译: 公开了一种由互穿网络型固体聚合物制成的改进的固体电解质,其包含两相相:用于机械强度和化学稳定性的交联聚合物和离子导电相。 本发明的高支化硅氧烷聚合物具有作为侧链的一个或多个聚(环氧乙烷)(“PEO”)基团。 PEO基团直接接枝到硅氧烷聚合物中的硅原子上。 这种支链型硅氧烷聚合物稳定地锚定在网状结构中,并且在整个IPN固体聚合物电解质中在所有方向上提供连续的导电路径。 还公开了制造结合电解质的电化学电池的方法。 相应制造的电池具有非常高的循环寿命和电化学稳定性。

    LITHIUM BASED ELECTROCHEMICAL CELL SYSTEMS
    6.
    发明申请
    LITHIUM BASED ELECTROCHEMICAL CELL SYSTEMS 有权
    基于锂的电化学电池系统

    公开(公告)号:US20080070121A1

    公开(公告)日:2008-03-20

    申请号:US11943462

    申请日:2007-11-20

    摘要: Primary and secondary Li-ion and lithium-metal based electrochemical cell systems. Suppression of gas generation is achieved in the cell through the addition of an additive or additives to the electrolyte system of the respective cell, or to the cell whether it be a liquid, a solid- or plastized polymer electrolyte system. The gas suppression additives are preferably based on unsaturated hydrocarbons.

    摘要翻译: 一次和二次锂离子和锂金属基电化学电池系统。 通过向相应电池的电解质体系中添加添加剂或添加剂,或者将电池作为液体,固体或塑化的聚合物电解质体系,在电池中实现气体产生的抑制。 气体抑制添加剂优选基于不饱和烃。

    Long life lithium batteries with stabilized electrodes
    7.
    发明申请
    Long life lithium batteries with stabilized electrodes 有权
    长寿命的锂电池具有稳定的电极

    公开(公告)号:US20060147809A1

    公开(公告)日:2006-07-06

    申请号:US11338902

    申请日:2006-01-24

    IPC分类号: H01M10/40

    摘要: The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In certain electrolytes, the alkali metal salt is a bis(chelato)borate and the additives include substituted or unsubstituted linear, branched or cyclic hydrocarbons comprising at least one oxygen atom and at least one aryl, alkenyl or alkynyl group. In other electrolytes, the additives include a substituted aryl compound or a substituted or unsubstituted heteroaryl compound wherein the additive comprises at least one oxygen atom. There are also provided methods of making the electrolytes and batteries employing the electrolytes. The invention also provides for electrode materials. Cathodes of the present invention may be further stabilized by surface coating the particles of the spinel or olivine with a material that can neutralize acid or otherwise lessen or prevent leaching of the manganese or iron ions. In some embodiments the coating is polymeric and in other embodiments the coating is a metal oxide such as ZrO2, TiO2, ZnO, WO3, Al2O3, MgO, SiO2, SnO2 AlPO4, Al(OH)3, a mixture of any two or more thereof.

    摘要翻译: 本发明涉及具有电极稳定添加剂,稳定电极和含有这些电极的电化学装置的非水电解质。 因此,本发明提供了含有碱金属盐,极性非质子溶剂和电极稳定添加剂的电解质。 在某些电解质中,碱金属盐是双(螯合)硼酸盐,并且添加剂包括取代或未取代的包含至少一个氧原子和至少一个芳基,烯基或炔基的直链,支链或环状烃。 在其他电解质中,添加剂包括取代的芳基化合物或取代或未取代的杂芳基化合物,其中添加剂包含至少一个氧原子。 还提供了使用电解质的电解质和电池的制造方法。 本发明还提供电极材料。 通过用可以中和酸或以其它方式减少或防止锰或铁离子浸出的材料表面涂覆尖晶石或橄榄石的颗粒,可以进一步稳定本发明的阴极。 在一些实施方案中,涂层是聚合物,在其它实施方案中,涂层是金属氧化物,例如ZrO 2,TiO 2,ZnO,WO 3, ,Al 2 O 3,MgO,SiO 2,SnO 2,AlPO 4,N 2 O 3, ,Al(OH)3 N 3,其中任何两种或更多种的混合物。

    Long life lithium batteries with stabilized electrodes
    8.
    发明申请
    Long life lithium batteries with stabilized electrodes 有权
    长寿命的锂电池具有稳定的电极

    公开(公告)号:US20050019670A1

    公开(公告)日:2005-01-27

    申请号:US10857365

    申请日:2004-05-28

    摘要: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal(chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

    摘要翻译: 本发明涉及具有稳定添加剂的非水电解质和含有它们的电化学装置。 因此,本发明提供了包含碱金属盐,极性非质子溶剂,作为取代或未取代的有机胺的第一添加剂,取代或未取代的烷烃,取代或未取代的烯烃或取代或未取代的芳基化合物的电解质,和/或第二 作为金属(螯合)硼酸盐的添加剂。 当用于例如锂锰氧化物尖晶石电极的电化学装置中时,新的电解质提供具有改善的日历和循环寿命的电池。