期刊
CARBON ENERGY
卷 1, 期 2, 页码 246-252出版社
WILEY
DOI: 10.1002/cey2.8
关键词
glucose; graphitic carbon; Li-ion batteries; silicon anode
类别
资金
- Power Energy Solutions, Inc.
We report the synthesis of a high-performance graphitic carbon-coated silicon (Si@GC) composite material for lithium-ion batteries via a scalable production route. Porous Si is produced from the magnesiothermic reduction of commercial silica (SiO2) precursor followed by low-temperature graphitic carbon coating using glucose as the precursor. The obtained Si@GC composite achieves an excellent reversible specific capacity of 1195 mAh g(-1) and outstanding cycle stability. The thick Si@GC anode (3.4 mg cm(-2)) in full cells with commercial lithium iron phosphate cathode delivers a remarkable performance of 800 mAh g(-1) specific capacity and 2.7 mAh cm(-2) areal capacity as well as 93.6% capacity retention after 200 cycles.
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