期刊
JOURNAL OF ELECTRONIC MATERIALS
卷 51, 期 8, 页码 4329-4336出版社
SPRINGER
DOI: 10.1007/s11664-022-09697-2
关键词
Nanocomposites; lithium-ion battery; ball-milling; air atmosphere
资金
- national high technology research and development program (863 Program) [2013AA034002, 2015AA034601]
- National Natural Science Foundation of China [51201037]
- Beijing Natural Science Foundation [2122020]
A method for the large-scale synthesis of Si-carbon nanocomposites via two-step ball-milling in an air atmosphere was developed, and the materials exhibited excellent electrochemical performance with high capacity and good cycle stability. This strategy is cost-effective, easy to operate, and highly efficient.
A method for the large-scale synthesis of silicon (Si)-carbon nanocomposites was developed via two-step ball-milling in an air atmosphere, using low-cost Si microparticles and spherical graphite (C) and zirconium boride (ZrB2) as the raw materials, to prepare high-performance anode materials for lithium-ion batteries (LIBs). Three composite materials with the same mass ratio were prepared according to gas condition and weight. The material prepared in air demonstrates better electrochemical performance than the other two materials, exhibiting high capacity (up to 1352 mAh g(-1)) after initial discharge and good cycle stability (650 mAh g(-1) after 100 cycles at a current density of 0.1 A g(-1)). Thus, this strategy using controlled two-step ball-milling in an air atmosphere is an effective method for the large-scale synthesis of electrochemical energy storage materials with superior lithium storage performance due to advantages including ease of operation, convenient synthesis, cost-effectiveness, and high efficiency.
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