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所属单位：材料科学与技术学院
发表刊物：ACS APPLIED MATERIALS & INTERFACES
关键字：silicon carbon coated hollow structure Li-ion batteries anode
摘要：Adjusting the particle size and nanostructure or applying carbon materials as the coating layers is a promising method to hold the volume expansion of Si for its practical application in lithium-ion batteries (LIBs). Herein, the mild carbon coating combined with a molten salt reduction is precisely designed to Synthesize raspberry-like hollow silicon spheres coated with carbon shells (HSi@C) as the anode materials for LIBs. The HSi@C exhibits a remarkable electrochemical performance; a high reversible specific capacity of 886.2 mAh gr(-1) at a current density of 0.5 A g(-1) after 200 cycles is achieved. Moreover, even after 500 cycles at a current density of 2.0 A g(-1), a stable capacity of 516.7 mAh g(-1) still can be obtained.
ISSN号：1944-8244
是否译文：否
发表时间：2017-06-07
合写作者：Tong, Zhenkun,Nie, Ping,Liu, Gao,张校刚
通讯作者：张校刚,方姗