Boosting pseudocapacity by assembling few-layer WS2 into mesoporous nanofibers towards high-performance anode

doi:10.1016/j.electacta.2020.136238

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	Boosting pseudocapacity by assembling few-layer WS2 into mesoporous nanofibers towards high-performance anode
	Wan, Jia ; Chen, Qinqin ; Li, Wang ; Pan, Linhai ; Zhao, Zehua ; Yu, Dongdong ; Tang, Zhihong ; He, Haiyong
刊名	ELECTROCHIMICA ACTA
	2020
卷号	345
关键词	ENHANCED ELECTROCHEMICAL PERFORMANCES REDUCED GRAPHENE OXIDE CARBON NANOFIBERS LITHIUM STORAGE ION MOS2 NANOSHEETS CYCLABILITY DISULFIDE COMPOSITE
DOI	10.1016/j.electacta.2020.136238
英文摘要	Transition metal dichalcogenides (TMDs) have shown potential as anodes in lithium-ion batteries (LIBs) due to high specific capacity. However, low conductivity and long diffusion distance in layered structure limited their electrochemical performance. Here, a feasible method was reported to assemble few-layer WS2 into mesoporous structure using carbon as a glue to create plenteous pseudocapacitive sites. In this way, the contribution of pseudocapacity in electrochemical process was dramatically increased. As a result, the specific capacity of WS2 reached 754 mA h g(-1) at 500 mA g(-1) after 120 cycles, double of theoretical value. The rate capability is also improved due to the high speed of pseudocapacitive reaction. Thus, the retention of specific capacity is enhanced from 47.6% to 63.2%, as current density is increased from 0.1 to 2 A g(-1). (c) 2020 Elsevier Ltd. All rights reserved.
学科主题	Electrochemistry
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20739]
专题	2020专题
作者单位	1.Tang, ZH (corresponding author), Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai 20093, Peoples R China. 2.He, HY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Wan, Jia,Chen, Qinqin,Li, Wang,et al. Boosting pseudocapacity by assembling few-layer WS2 into mesoporous nanofibers towards high-performance anode[J]. ELECTROCHIMICA ACTA,2020,345.
APA	Wan, Jia.,Chen, Qinqin.,Li, Wang.,Pan, Linhai.,Zhao, Zehua.,...&He, Haiyong.(2020).Boosting pseudocapacity by assembling few-layer WS2 into mesoporous nanofibers towards high-performance anode.ELECTROCHIMICA ACTA,345.
MLA	Wan, Jia,et al."Boosting pseudocapacity by assembling few-layer WS2 into mesoporous nanofibers towards high-performance anode".ELECTROCHIMICA ACTA 345(2020).