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    Lithium alloy/sulfur batteries
    1.
    发明申请
    Lithium alloy/sulfur batteries 审中-公开
    锂合金/硫电池

    公开(公告)号：US20080318128A1

    公开(公告)日：2008-12-25

    申请号：US11821576

    申请日：2007-06-22

    申请人： Martin Simoneau ,  Chariclea Scordilis-Kelley ,  Tracy E. Kelley

    发明人： Martin Simoneau ,  Chariclea Scordilis-Kelley ,  Tracy E. Kelley

    IPC分类号： H01M4/40 ,  H01M4/42 ,  H01M4/46

    CPC分类号： H01M4/134 ,  H01M4/02 ,  H01M4/0404 ,  H01M4/1395 ,  H01M4/382 ,  H01M4/40 ,  H01M4/405 ,  H01M4/42 ,  H01M4/46 ,  H01M10/052 ,  H01M10/0585 ,  H01M2004/027 ,  Y10T29/49112

    摘要： Electrochemical cells including anode compositions that may enhance charge-discharge cycling efficiency and uniformity are presented. In some embodiments, alloys are incorporated into one or more components of an electrochemical cell, which may enhance the performance of the cell. For example, an alloy may be incorporated into an electroactive component of the cell (e.g., electrodes) and may advantageously increase the efficiency of cell performance. Some electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on the surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. In some cases, the efficiency and uniformity of such processes may affect cell performance. The use of materials such as alloys in an electroactive component of the cell have been found to increase the efficiency of such processes and to increase the cycling lifetime of the cell. For example, the use of alloys may reduce the formation of dendrites on the anode surface and/or limit surface development.

    摘要翻译： 提出了包括可以增强充电 - 放电循环效率和均匀性的阳极组合物的电化学电池。 在一些实施方案中，将合金结合到电化学电池的一个或多个组分中，这可以增强电池的性能。 例如，合金可以结合到电池的电活性组分（例如电极）中，并且可以有利地提高电池性能的效率。 一些电化学电池（例如，可再充电电池）可能经历充电/放电循环，包括在阳极表面上充电和反应金属（例如，锂金属）时阳极表面沉积金属（例如锂金属），其中金属从 阳极表面。 在某些情况下，这些过程的效率和均匀性可能会影响细胞表现。 已经发现在电池的电活性组分中使用诸如合金的材料可以提高这些工艺的效率并增加电池的循环寿命。 例如，使用合金可以减少阳极表面上的枝晶的形成和/或限制表面发育。