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
    5.
    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。