期刊
ENERGY & FUELS
卷 34, 期 10, 页码 13137-13143出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.0c02618
关键词
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资金
- Union Project of the National Natural Science Foundation of China [U1601214]
- Union Project of the National Natural Science Foundation of Guangdong Province [U1601214]
- Science and Technology Program of Guangzhou [2019050001]
- Scientific and Technological Plan of Guangdong Province [2018B050502010]
- Third Batch of Zhaoqing Xijiang Talent Innovation Team Project (2019)
To relieve the volume expansion of silicon during the lithium insertion/desertion process, we designed fluffy rice carbon/nano-Si@C (FRC/NP-Si@C) composites with a stable structure via spray drying, a large-scale produced low-cost approach. Nanosilicon particles are fixed in robust microspheres assembled from FRC and pitch carbon while forming three-dimensional (3D) conducting nanosized porous channels. FRC/NP-Si@C composites, as anodes for lithium-ion batteries, display outstanding cycling and rate performances at room temperature owing to their special structure. They exhibit a reversible capacity of 600 mAh g(-1) at 0.1 A g(-1) after 200 cycles as well as stable capacities of 1688.2 and 579.8 mAh g(-1) at current densities of 0.1 and 1.6 A g(-1), respectively, indicating their use as alternative anode materials for lithium-ion batteries (LIBs).
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