Synthesis of ternary SnO2-MoO3-C composite with nanosheet structure as high-capacity, high-rate and long-lifetime anode for lithium-ion batteries

被引：12
作者：
Feng, Yefeng [1 ]
Wu, Kaidan [1 ]
Ke, Jin [1 ]
Guo, Zhiling [1 ]
Deng, Xiaoqian [1 ]
Bai, Chen [1 ]
Sun, Yukun [1 ]
Wang, Qiao [1 ]
Yang, Bingwen [1 ]
Dong, Huafeng [1 ]
Xiong, Deping [1 ]
He, Miao [1 ]
机构：
[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2021年 / 47卷 / 07期
关键词：
Tin oxides; Ternary; Carbon nanosheet; Lithium-ion batteries; Anode;
D O I：
10.1016/j.ceramint.2020.12.057
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The SnO2-MoO3-C composite anode for Li-ion batteries (LIBs) was produced via simple hydrothermal synthesis and dry ball milling. In this hybrid, nanosized-SnO2/MoO3 nanoparticles were encapsulated in plate-like graphite. MoO3 additive can protect Sn from aggregating and accelerate the reversible conversion reaction (Sn/Li2O hybrid transformation into SnO2). The SnO2-MoO3-C displays high initial coulombic efficiency of 70% (average for five cells), high reversible specific capacity of 1338.3 mAhg(-1) at 0.2 A g(-1) after 300 cycles, superior rate capacity of 715.08 mAhg(-1) at 5 A g(-1) and long-term cyclic stability, with capacity of 571.9 mAhg(-1) at 2.0 A g(-1) after 1000 cycles. Owing to its superior performance and simple synthesis, the SnO2-MoO3-C composite is a promising anode material for LIBs.
引用
收藏
页码：9303 / 9309
页数：7
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