Long life lithium batteries with stabilized electrodes
    1.
    发明授权
    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:US09012096B2

    公开(公告)日:2015-04-21

    申请号:US11338902

    申请日:2006-01-24

    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,并且在其它实施方案中,涂层是诸如ZrO 2,TiO 2,ZnO,WO 3,Al 2 O 3,MgO,SiO 2,SnO 2,AlPO 4,Al(OH)3的金属氧化物,其任何两种或更多种的混合物 。

    Long life lithium batteries with stabilized electrodes
    2.
    发明授权
    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:US07507503B2

    公开(公告)日:2009-03-24

    申请号:US11297120

    申请日:2005-12-08

    IPC分类号: H01M6/16

    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 some embodiments the additives include a substituted or unsubstituted cyclic or spirocyclic hydrocarbon containing at least one oxygen atom and at least one alkenyl or alkynyl group. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes or olivine or carbon-coated olivine electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

    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。 在一些实施方案中,添加剂包括含有至少一个氧原子和至少一个烯基或炔基的取代或未取代的环状或螺环烃。 当用于具有例如锂锰氧化物尖晶石电极或橄榄石或碳涂覆的橄榄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。

    Long life lithium batteries with stabilized electrodes
    4.
    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
    5.
    发明授权
    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:US08551661B2

    公开(公告)日:2013-10-08

    申请号:US13116559

    申请日:2011-05-26

    IPC分类号: H01M6/18 H01M6/16

    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。

    Long life lithium batteries with stabilized electrodes
    7.
    发明授权
    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:US07968235B2

    公开(公告)日:2011-06-28

    申请号:US10857365

    申请日:2004-05-28

    IPC分类号: H01M6/18 H01M6/16

    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。

    Lithium ion battery with improved safety
    8.
    发明授权
    Lithium ion battery with improved safety 有权
    锂离子电池安全性提高

    公开(公告)号:US07026074B2

    公开(公告)日:2006-04-11

    申请号:US10077569

    申请日:2002-02-15

    IPC分类号: H01M10/40

    摘要: A lithium battery with improved safety that utilizes one or more additives in the battery electrolyte solution wherein a lithium salt is dissolved in an organic solvent, which may contain propylene, carbonate. For example, a blend of 2 wt % triphenyl phosphate (TPP), 1 wt % diphenyl monobutyl phosphate (DMP) and 2 wt % vinyl ethylene carbonate additives has been found to significantly enhance the safety and performance of Li-ion batteries using a LiPF6 salt in EC/DEC electrolyte solvent. The invention relates to both the use of individual additives and to blends of additives such as that shown in the above example at concentrations of 1 to 4-wt % in the lithium battery electrolyte. This invention relates to additives that suppress gas evolution in the cell, passivate graphite electrode and protect it from exfoliating in the presence of propylene carbonate solvents in the electrolyte, and retard flames in the lithium batteries.

    摘要翻译: 一种电池电解液中使用一种或多种添加剂的安全性提高的锂电池,其中锂盐溶解在可能含有丙烯,碳酸盐的有机溶剂中。 例如,已经发现,使用2重量%磷酸三苯酯(TPP),1重量%磷酸二苯基丁酯(DMP)和2重量%乙烯基碳酸亚乙酯添加剂的混合物可显着提高使用LiPF的锂离子电池的安全性和性能 EC / DEC电解质溶剂中的盐。 本发明涉及在锂电池电解质中单独添加剂的使用和上述实施例中所示的添加剂的混合物的浓度为1至4重量%。 本发明涉及抑制电池中的气体逸出的添加剂,钝化石墨电极,并且在电解质中存在碳酸丙烯酯溶剂的情况下保护其免于脱落,并延缓锂电池中的火焰。

    Solid polymer electrolyte and method of preparation
    9.
    发明授权
    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:US07226702B2

    公开(公告)日:2007-06-05

    申请号:US10496230

    申请日:2003-01-22

    IPC分类号: H01M6/18

    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。