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    • 17. 发明授权
    • Treated battery separator
    • 处理电池分离器
    • US09083034B2
    • 2015-07-14
    • US13834060
    • 2013-03-15
    • Ford Global Technologies, LLC
    • Qian ZhouKent Snyder
    • H01M2/14H01M2/16H01M10/0525
    • H01M2/145H01M2/1653H01M10/0525H01M2220/20Y02E60/122
    • In at least one embodiment, a rechargeable battery is provided comprising an electrolyte including an organic solvent and a solution-treated polyolefin separator. A contact angle of the electrolyte including the organic solvent upon the separator may be from 0 to 15 degrees. In one embodiment, the solution-treated polyolefin layer has an increased concentration of ionic functional groups at its surface compared to an untreated polyolefin layer. In another embodiment, the solution-treated polyolefin separator has been treated with a treatment solution having a pH of either at most 2 or at least 12. The separator may be treated with an acid or base solution for at least 30 seconds. The solution-treated separator may exhibit improved wetting with an electrolyte compared to an untreated separator.
    • 在至少一个实施例中,提供了包括电解质的可再充电电池,其包括有机溶剂和溶液处理的聚烯烃隔板。 包含分离器上的有机溶剂的电解质的接触角可以为0至15度。 在一个实施方案中,与未处理的聚烯烃层相比,溶液处理的聚烯烃层在其表面上具有增加的离子官能团浓度。 在另一个实施方案中,溶液处理的聚烯烃分离器已经用pH至多为2或至少12的处理溶液处理。分离器可以用酸或碱溶液处理至少30秒。 溶液处理的分离器与未处理的分离器相比可以显示出与电解质相比改善的润湿性。