Electrochemical performance of SnO2/C nanocomposites as anode materials for lithium-ion batteries

被引：7

作者：

Fan, Yingqiang ^{[1
]}

Chen, Xiujuan ^{[2
]}

Zhang, Laixi ^{[2
]}

Wu, Jiakui ^{[1
]}

Wang, Linlin ^{[1
]}

Yu, Shurong ^{[2
]}

Wu, Mingliang ^{[2
]}

机构：

[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China

[2] Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China

来源：

IONICS | 2023年 / 29卷 / 02期

关键词：

SnO2; Carbon coating; Anode material; Lithium-ion battery; Hydrothermal synthesis; HIGH-CAPACITY; CARBON FRAMEWORK; COMPOSITE; STORAGE; NANOCRYSTALS; NANOSPHERES; NANOFIBERS; NANOTUBES;

D O I：

10.1007/s11581-022-04806-x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon-coated SnO2 nanocomposites were synthesized successfully by the hydrothermal method and carbonization at 500 degrees C with glucose and SnCl2?2H(2)O as precursor materials. The SnO2/C nanocomposites were characterized by various techniques such as X-ray powder diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), Raman spectra, and electrochemical analyses. It was demonstrated that SnO2/C-0, SnO2/C-5, SnO2/C-15, SnO2/C-30, and SnO2/C-50 had initial discharge capacities of 1359.2, 1626.8, 2124.9, 1525.8, and 1349.4 mAhg-1, respectively. In particular, the SnO2/C-15 sample exhibited excellent high reversible lithium storage capacity, good rate capability, and cycling stability. The electrodes show a long cycling ability and high charge/discharge capacity due to the presence of carbon.

引用

页码：497 / 504

页数：8

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