锂合金的电解制备及性能研究 Ⅰ.合金循环伏安曲线与库仑效率

Electrolysis Preparation and Performance Study of Lithium Alloys I. Cycle Voltammograms and Coulomb Efficiency of the Alloys

本文研究了五种锂合金在非水LiClO_4溶液中的循环性能,在三种不同的Al基质上形成的Li—Al合金的循环伏安曲线显示,合金主要由β—LiAl和α—LiAl合金组成,在三种Al材料中,Li在Al_2基质上的循环效率最高,在Pb和In与Li形成的合金中,LiIn合金具有较高的循环效率和良好的可逆性,实验表明,在Al_2基质上形成的LiAl合金和LiIn合金是非常有希望应用于二次锂电池的阳极材料。

The cycling performance of five kinds of Lithium alloys in nonaqueous solution of LiCIO_4 was studied. The cycle voltammograms of formative Li—Al alloys on three different Al substrate showed that these alloys mainly consisted of β—LiAl and α—LiAl. The cycling efficiency of Li on Al_2 substrate was the highest in three materials. Li—In alloys, composed of In with Li, was superior to Li—Pb alloys in the cycling efficiency and reversibility, these experimental results demonstrate that LiAl on Al_2 substrate andiIn alloys are much hopeful anode materials applied in the secondary lithium battery.