A facile synthesis of SO42/SnO2 solid superacid nanoparticles as anode materials for lithium-ion batteries

作者：Zhang, Wei; Du, Xiaoli; Tan, Yueyue; Hu, Jinbo; He, Siyao; Stein, Andreas; Tang, Bohejin^*

来源：Electrochemistry Communications, 2016, 62: 9-12.

DOI：10.1016/j.elecom.2015.11.003

• Lithium-ion battery
• Solid superacid
• SO42/SnO2 nanopartides

This paper presents a study of Sn0(2) and SO42-/Sn0(2) solid superacid nanoparticles, synthesized by a facile sol-gel route, as anode materials for lithium-ion batteries (LIBs). A possible reversible reaction mechanism is proposed for the S0(4)(2-)/Sn0(2) solid superacid nanoparticles used as an anode material. The S0(4)(2-)/SnO2 exhibits a reversible lithium storage capacity of 925 mAh g(-1) at a low charge-discharge rate of 0.2 C (156 mA g-1). Furthermore, it exhibits a stable cycling performance over 50 cycles at the rate of 0.2 C, maintaining the specific capacity of 310 mAh g(-1), whereas SO42- -free Sn02 only delivers a capacity retention of 126 mAh g(-1).

• 出版日期2016-1
• 单位上海工程技术大学