Three-dimensional nanoarchitecture of Sn–Sb–Co alloy as an anode of lithium-ion batteries with excellent lithium storage performance

• DOI: 10.1039/c2jm32162a
• Publication Date: 2012-06-21T17:22:04Z
• Authors: Fu-Sheng Ke; Ling Huang; Bryan C. Solomon; Guo-Zhen Wei; Lian-Jie Xue; Bo Zhang; Jun-Tao Li; Xiao-Dong Zhou; Shi-Gang Sun
• Keywords: COMPOSITE; ELECTRODE; HIGH-CAPACITY; FABRICATION; 02 engineering and technology; NANOWIRES; 7. Clean energy; TIN; 669; ELECTROCHEMICAL PERFORMANCE; NANOPARTICLES; SECONDARY BATTERIES; 0210 nano-technology; FILM

A novel nanoarchitectured Sn–Sb–Co alloy electrode is reported, which was prepared by direct electrodeposition on a Cu nanoribbon array in order to target the rapidly fading capacity and poor rate-capability issues of Sn based materials for Li-ion batteries. The SEM images indicate three-dimensional (3D) with an structure. Electrochemical measurements show that 3D Sn54Sb41Co5 exhibits reversible as high 512.8 mA h g−1 at 0.2 C (1 = 650 g−1) after 150 cycles. Furthermore, anode can deliver (275 up 80th cycle discharge–charge rate 23 (∼15 g−1). These outstanding electrochemical properties are attributed unique nanoarchitectures electrodes, making them excellent material.