Conductive polymeric compositions for lithium batteries
    1.
    发明授权
    Conductive polymeric compositions for lithium batteries 有权
    锂电池用导电聚合物组合物

    公开(公告)号:US07504473B2

    公开(公告)日:2009-03-17

    申请号:US10311643

    申请日:2001-06-16

    IPC分类号: C08G63/02 C08G63/00

    摘要: Novel chain polymers comprising weakly basic anionic moieties chemically bound into a polyether backbone at controllable anionic separations are presented. Preferred polymers comprise orthoborate anions capped with dibasic acid residues, preferably oxalato or malonato acid residues. The conductivity of these polymers is found to be high relative to that of most conventional salt-in-polymer electrolytes. The conductivity at high temperatures and wide electrochemical window make these materials especially suitable as electrolytes for rechargeable lithium batteries.

    摘要翻译: 提出了包含弱碱性阴离子部分的新型链状聚合物,其以可控的阴离子分离化学键合到聚醚主链中。 优选的聚合物包括用二元酸残基(优选草酸或丙二酸残基)封端的原硼酸根阴离子。 发现这些聚合物的电导率相对于大多数常规的聚合物电解质的电导率高。 在高温和宽电化学窗口的电导率使这些材料特别适合用作可再充电锂电池的电解质。

    Solid polymeric electrolytes for lithium batteries
    2.
    发明授权
    Solid polymeric electrolytes for lithium batteries 有权
    用于锂电池的固体高分子电解质

    公开(公告)号:US07012124B2

    公开(公告)日:2006-03-14

    申请号:US10311644

    申请日:2001-06-16

    IPC分类号: C08G77/56 C08G79/10

    摘要: Novel conductive polyanionic polymers and methods for their preparion are provided. The polyanionic polymers comprise repeating units of weakly-coordinating anionic groups chemically linked to polymer chains. The polymer chains in turn comprise repeating spacer groups. Spacer groups can be chosen to be of length and structure to impart desired electrochemical and physical properties to the polymers. Preferred embodiments are prepared from precursor polymers comprising the Lewis acid borate tri-coordinated to a selected ligand and repeating spacer groups to form repeating polymer chain units. These precursor polymers are reacted with a chosen Lewis base to form a polyanionic polymer comprising weakly coordinating anionic groups spaced at chosen intervals along the polymer chain. The polyanionic polymers exhibit high conductivity and physical properties which make them suitable as solid polymeric electrolytes in lithium batteries, especially secondary lithium batteries.

    摘要翻译: 提供了新的导电聚阴离子聚合物及其制备方法。 聚阴离子聚合物包含与聚合物链化学连接的弱配位阴离子基团的重复单元。 聚合物链依次包含重复的间隔基团。 间隔基团可以选择为长度和结构以赋予聚合物所需的电化学和物理性质。 优选实施方案由包含与选定配体三配位的路易斯酸硼酸盐的前体聚合物制备,并重复间隔基以形成重复的聚合物链单元。 这些前体聚合物与选择的路易斯碱反应以形成聚阴离子聚合物,其包含沿着聚合物链以选定间隔间隔的弱配位阴离子基团。 聚阴离子聚合物表现出高导电性和物理性能,使其适用于锂电池,特别是二次锂电池中的固体聚合物电解质。

    Ionic liquids and ionic liquid acids with high temperature stability for fuel cell and other high temperature applications, method of making and cell employing same
    7.
    发明授权
    Ionic liquids and ionic liquid acids with high temperature stability for fuel cell and other high temperature applications, method of making and cell employing same 有权
    用于燃料电池和其他高温应用的离子液体和离子液体酸具有高温稳定性,制备方法和使用细胞的方法

    公开(公告)号:US07867658B2

    公开(公告)日:2011-01-11

    申请号:US10555468

    申请日:2004-05-03

    IPC分类号: H01M8/00 H01M8/08

    摘要: Disclosed are developments in high temperature fuel cells including ionic liquids with high temperature stability and the storage of inorganic acids as di-anion salts of low volatility. The formation of ionically conducting liquids of this type having conductivities of unprecedented magnitude for non-aqueous systems is described. The stability of the di-anion configuration is shown to play a role in the high performance of the non-corrosive proton-transfer ionic liquids as high temperature fuel cell electrolytes. Performance of simple H2(g) electrolyte/O2(g) fuel cells with the new electrolytes is described. Superior performance both at ambient temperature and temperatures up to and above 200° C. are achieved. Both neutral proton transfer salts and the acid salts with HSO−4 anions, give good results, the bisulphate case being particularly good at low temperatures and very high temperatures. The performance of all electrolytes is improved by the addition of a small amount of involatile base of pKa value intermediate between those of the acid and base that make the bulk electrolyte. The preferred case is the imidazole-doped ethylammonium hydrogensulfate which yields behavior superior in all respects to that of the industry standard phosphoric acid electrolyte.

    摘要翻译: 公开了高温燃料电池的发展,包括具有高温稳定性的离子液体和无机酸作为低挥发性的二阴离子盐的储存。 描述了具有前所未有的非水系统电导率的这种离子导电液体的形成。 二阴离子配置的稳定性显示出在非腐蚀性质子转移离子液体作为高温燃料电池电解质的高性能中起作用。 描述了具有新电解质的简单H 2(g)电解质/ O 2(g)燃料电池的性能。 在环境温度和高于和高于200℃的温度下都能实现卓越的性能。 两种中性质子转移盐和与HSO-4阴离子的酸式盐都具有良好的结果,硫酸氢盐的情况在低温和非常高的温度下特别好。 所有电解质的性能通过在制造本体电解质的酸和碱之间添加少量pKa值的非挥发性碱而提高。 优选的情况是咪唑掺杂的硫酸氢铵,其产生的行为在所有方面都优于工业标准磷酸电解质。

    Electrolytic orthoborate salts for lithium batteries
    8.
    发明授权
    Electrolytic orthoborate salts for lithium batteries 有权
    锂电池电解正硼酸盐

    公开(公告)号:US07527899B2

    公开(公告)日:2009-05-05

    申请号:US10311605

    申请日:2001-06-18

    摘要: Orthoborate salts suitable for use as electrolytes in lithium batteries and methods for making the electrolyte salts are provided. The electrolytic salts have one of the formulae (I). In this formula anionic orthoborate groups are capped with two bidentate chelating groups, Y1 and Y2. Certain preferred chelating groups are dibasic acid residues, most preferably oxalyl, malonyl and succinyl, disulfonic acid residues, sulfoacetic acid residues and halo-substituted alkylenes. The salts are soluble in non-aqueous solvents and polymeric gels and are useful components of lithium batteries in electrochemical devices.

    摘要翻译: 提供适合用作锂电池中的电解质的正硼酸盐和制备电解质盐的方法。 电解盐具有式(I)之一。 在该式中,阴离子正硼酸酯基团被两个二齿螯合基团Y1和Y2封端。 某些优选的螯合基团是二元酸残基,最优选草酰基,丙二酰基和琥珀酰基,二磺酸残基,磺基乙酸残基和卤代取代的亚烷基。 这些盐可溶于非水溶剂和聚合物凝胶,并且是电化学装置中锂电池的有用组分。

    Non-Aqueous Electrolytic Solutions And Electrochemical Cells Comprising The Same
    9.
    发明申请
    Non-Aqueous Electrolytic Solutions And Electrochemical Cells Comprising The Same 有权
    非水电解液和电化学电池组成

    公开(公告)号:US20090017386A1

    公开(公告)日:2009-01-15

    申请号:US11775950

    申请日:2007-07-11

    IPC分类号: H01M10/40 H01M10/38

    摘要: Non-aqueous electrolyte solutions capable of protecting negative electrode materials such as lithium metal and carbonaceous materials in energy storage electrochemical cells (e.g., lithium metal batteries, lithium ion batteries and supercapacitors) include an electrolyte salt, a non-aqueous electrolyte solvent mixture, an unsaturated organic compound 4-methylene-1,3-dioxolan-2-one or 4,5-dimethylene-1,3-dioxolan-2-one, and other optional additives. The 1,3-dioxolan-2-ones help to form a good solid electrolyte interface on the negative electrode surface.

    摘要翻译: 在能量储存电化学电池(例如,锂金属电池,锂离子电池和超级电容器)中能够保护负极材料如锂金属和碳质材料的非水电解质溶液包括电解质盐,非水电解质溶剂混合物, 不饱和有机化合物4-亚甲基-1,3-二氧戊环-2-酮或4,5-二甲基-1,3-二氧戊环-2-酮,以及其它任选的添加剂。 1,3-二氧戊环-2-酮有助于在负极表面形成良好的固体电解质界面。