Process for preparing alloyed negative electrodes
    1.
    发明授权
    Process for preparing alloyed negative electrodes 失效
    制备合金化负极的方法

    公开(公告)号:US4690840A

    公开(公告)日:1987-09-01

    申请号:US719978

    申请日:1985-04-04

    摘要: The disclosure describes a method for the preparation of metallic alloys containing an alkali or alkali-earth metal, such as lithium, and a host metal, such as aluminum. Initially, an active organic solution of the alkali or the alkali-earth metal is prepared, and a source of the alkali or alkali-earth metal which are both brought together with one another. On the other hand, a metallic structure containing the host metal is prepared, the metallic structure is brought together with the organic solution which is kept in touch with the source of metal until there is formed an alloy of the host metal and of the alkali or alkali-earth metal with the metallic structure, and the alloy possesses an activity which is determined by that of the organic solution. The organic solution then acts as transfer agent of the alkali or alkali-earth metal towards the host metallic structure. To prepare a negative electrode, the alloy is brought together with an electrolyte, such as a thin polymeric film. The disclosure also describes the electrodes as well as the electrochemical generators produced by using these electrodes. Considerably improved properties of cycling are obtained.

    摘要翻译: 本公开内容描述了一种用于制备含有碱金属或碱土金属如锂的金属合金的方法以及诸如铝的主体金属。 首先,制备碱金属或碱土金属的活性有机溶液,并且将碱金属或碱土金属的源彼此并置在一起。 另一方面,制备含有主体金属的金属结构体,将金属结构与与金属源保持接触的有机溶液一起放置,直至形成了主体金属和碱的合金,或 具有金属结构的碱土金属,并且该合金具有由有机溶液确定的活性。 然后有机溶液作为碱金属或碱土金属的转移剂朝向主体金属结构。 为了制备负极,将该合金与诸如薄的聚合物膜的电解质结合在一起。 本公开还描述了使用这些电极产生的电极以及电化学发生器。 获得了显着提高的循环性能。