Simple and Efficient Combustion Method for Preparation of High-Performance Co 3 O 4 Anode Materials for Lithium-Ion Batt
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https://doi.org/10.1007/s11837-020-04212-6 2020 The Minerals, Metals & Materials Society
TECHNICAL ARTICLE
Simple and Efficient Combustion Method for Preparation of High-Performance Co3O4 Anode Materials for Lithium-Ion Batteries JIAMING LIU,1 YANHUA LU,1 RUIXIANG WANG,1 ZHIFENG XU,1,3 and XUE LI2,4 1.—School of Metallurgy Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China. 2.—National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, People’s Republic of China. 3.—e-mail: [email protected]. 4.—e-mail: [email protected]
The development of low-cost, simple, and efficient methods to prepare highperformance anode materials is a huge challenge. In this work, Co3O4 with high crystallinity was prepared by a solution combustion method. When used as an anode electrode, it displayed excellent electrochemical performance. The reversible capacity remained at 1115.7 mAh g1 after 100 cycles at 200 mA g1. Moreover, the capacity retention rate reached 96.3% after 300 cycles at 1000 mA g1. This excellent electrochemical performance can be attributed to the special macroporous structure of Co3O4, which can increase the contact area between the electrolyte and active material, improve the transport capacity of lithium ions, and effectively alleviate the volume change stress caused by charging and discharging. These results show that the solution combustion synthesis is simple and efficient, providing a low-cost production method for production of high-performance energy storage materials.
INTRODUCTION With the growing popularity of digital electronics and electric vehicles, lithium-ion batteries have received great attention as efficient energy storage devices due to their high specific energy, long cycle life, and good safety.1–5 As the leading anode material, graphite has played an important role in the development history of lithium-ion batteries (LIBs), but its low theoretical capacity (372 mAh g1) has limited the development of a new generation of high-energy–density LIBs.6–8 Therefore, it is of great significance to explore new types of anode material with high specific capacity, and good cycle stability and safety. Transition-metal oxides such as cobalt oxides,9,10 iron oxides,11,12 and multioxides 13–15 have the advantages of high specific capacity, high safety performance, a wide range of raw material sources, etc., and represent an important new type of
negative electrode materials. Among the many transition-metal oxides, Co3O4 with high specific capacity ( 896 mAh g1) shows great potential in this regard. However, Co3O4 undergoes serious volume changes during charging and discharging, resulting in pulverization of the material and ultimately lowering the electrochemical performance of the battery. A lot of research work has been carri
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