SnO2@C composite as Anode Material of Lithium-ion Batteries with Enhanced Cycling Stability

被引：6
|
作者：
Liu, Li-lai [1 ,2 ,3 ]
Li, Ming-yang [1 ]
Sun, Yi-han [1 ]
Ma, Min-xuan [1 ]
Yang, Xue-ying [1 ]
Wang, Hui [1 ]
机构：
[1] Heilongjiang Univ Sci & Technol, Coll Environm & Chem Engn, Harbin 150022, Peoples R China
[2] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China
[3] Baotailong New Mat Co LTD, Jixi 158100, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2022年 / 17卷 / 03期
基金：
中国国家自然科学基金;
关键词：
SnO2; microwave-hydrothermal; lithium-ion batteries; carbon spheres; electrochemical performances; PERFORMANCE; GRAPHENE; FACILE; SN;
D O I：
10.20964/2022.03.20
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The SnO2@C composite was prepared by a two-step microwave-hydrothermal method using a microwave reaction system. The surface of the carbon spheres is composited of the SnO2 nanoparticles with a diameter of about 3 nm. The SnO2@C composite exhibits excellent electrochemical performances in lithium-ion batteries. The first discharge/charge capacities at a current density of 700 and 1000 mAg(-1) is 1393/766 and 1309/685 mAh center dot g(-1) with coulomb efficiencies of 54.99% and 52.33%, respectively. Even after 100 cycles, the discharge specific capacities at a current density of 1000 mAg(-1) remains 480 mAh center dot g(-1) with coulomb efficiencies of 99.40%.
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页数：12
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