Ultra thin solid state lithium batteries and process of preparing same
    90.
    发明授权
    Ultra thin solid state lithium batteries and process of preparing same 失效
    超薄固态锂电池及其制备方法

    公开(公告)号:US6030421A

    公开(公告)日:2000-02-29

    申请号:US64821

    申请日:1998-04-23

    摘要: There is provided a mother-battery containing at least the following films: an anode of metallic lithium or sodium, a polymer electrolyte which is conductive towards the alkaline ions of the anode and also acts as a separator between the electrodes, and a composite cathode consisting of a compound which is reducible to lithium or sodium, an additive of electronic conduction and a polymer electrolyte binder. The mother battery also includes an electronically conductive thin coating on the external face of the anode and, possibly of the cathode, in which the conductive material is chemically inert towards the electrode material and which also serves to establish permanent electrical contacts on the external faces. The laminated mother-battery of larger surface area and at least partially charged is thereafter subjected to a sharp mechanical cutting out to give thin polymer electrolyte batteries with lithium or sodium anode. The thus cut out batteries preserve substantially their voltage after mechanical cutting out which is recovered by a mechanism of self-healing.

    摘要翻译: 提供了至少包含以下膜的母体电池:金属锂或钠的阳极,朝向阳极的碱性离子导电并且还用作电极之间的隔板的聚合物电解质,以及包含 的可还原成锂或钠的化合物,电子传导添加剂和聚合物电解质粘合剂。 母电池还包括在阳极的外表面上以及可能的阴极的电子导电薄涂层,其中导电材料对于电极材料具有化学惰性,并且还用于在外表面上建立永久性电接触。 然后将具有较大表面积并且至少部分带电的叠层母电池进行锋利的机械切割以得到具有锂或钠阳极的薄聚合物电解质电池。 这样切出的电池在机械切割之后基本保持其电压,其通过自愈机制回收。