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Solution route synthesis of InSb, Cu6Sn5 and Cu2Sb electrodes for lithium batteries by T. Sarakonsri; C.S. Johnson; S.A. Hackney; M.M. Thackeray is a scholarly article available to read on EtoBox.

What is Solution route synthesis of InSb, Cu6Sn5 and Cu2Sb electrodes for lithium batteries about?

A solution method was used to prepare InSb, Cu 6 Sn 5 and Cu 2 Sb intermetallic compounds that are of interest as negative electrode materials for lithium batteries. The compounds were synthesized by the reduction of dissolved transition metal-and metalloid salts with fine Zn powder. Heterogeneous redox reactions at the surface of the Zn particles resulted in fern-like dendritic structures with high surface areas. Powder X-ray diffraction and lattice imaging by transmission electron microscopy showed that the intermetallic products were highly crystalline with preferred crystallographic orientations. Mild heat-treatment of the products under argon improved their phase purity. Electrodes prepared by this method exhibited a large irreversible capacity loss on the first charge/discharge cycle. Cu 2 Sb electrodes showed the greatest cycling stability; after the initial cycle, they delivered more than 230 mAh g -1 when cycled between 1.2 and 0.0 V versus metallic lithium, consistent with previously reported data for ball-milled Cu 2 Sb electrodes.

Author

T. Sarakonsri; C.S. Johnson; S.A. Hackney; M.M. Thackeray

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-7753)

Published

2006

Language

EN