Enabling superior sodium storage behavior of MoS2 in ether-based electrolytes

doi:10.1142/S1793604721500326

	Enabling superior sodium storage behavior of MoS2 in ether-based electrolytes
	Wang, Gang1,2,3 ; Zou, Jianli1 ; Kim, Franklin1
	2021-11
发表期刊	FUNCTIONAL MATERIALS LETTERS (IF:1.2[JCR-2023],1.2[5-Year])
ISSN	1793-6047
EISSN	1793-7213
卷号	14 期号:8
DOI	10.1142/S1793604721500326
摘要	While much efforts have been made in developing MoS2-based materials as anode for sodium-ion batteries, the influence of electrolytes on the sodium storage behavior has been relatively less studied. Herein, we demonstrate that using an ether-based electrolyte can significantly improve the electrochemical performance. Using DME electrolyte provided higher initial Coulombic efficiency (94.5%), better high-rate capability (433.64 mAh g(-1) at 5 A g(-1)), and larger specific capacity after 200 cycles (508 mAh g(-1) at 1 A g(-1)) compared to when using conventional EC/DEC electrolyte (75.3%, 332.5 mAh g(-1) at 5 A g(-1), and 87 mAh g(-1), respectively). From kinetic studies, the improvement in performance is attributed to larger capacitive storage contribution, lower energy barriers for ionic diffusion within the solid electrolyte interphase (SEI) layer and for charge transfer, and faster transport of sodium ions. Further SEM and TEM studies suggest the development of thinner SEI layer when using DME electrolyte. This study provides fundamental insights into how ether-based electrolytes can improve the rate performance and long-term cycle performance of MoS2 in sodium-ion batteries, which may be extended to other anode materials.
关键词	Sodium-ion battery MoS2 anode Electrolyte Ether
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000720921900009
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/133165
专题	物质科学与技术学院_硕士生物质科学与技术学院_PI研究组_Franklin Jongmyung Kim组
通讯作者	Kim, Franklin
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China; 2.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201203, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Wang, Gang,Zou, Jianli,Kim, Franklin. Enabling superior sodium storage behavior of MoS2 in ether-based electrolytes[J]. FUNCTIONAL MATERIALS LETTERS,2021,14(8).
APA	Wang, Gang,Zou, Jianli,&Kim, Franklin.(2021).Enabling superior sodium storage behavior of MoS2 in ether-based electrolytes.FUNCTIONAL MATERIALS LETTERS,14(8).
MLA	Wang, Gang,et al."Enabling superior sodium storage behavior of MoS2 in ether-based electrolytes".FUNCTIONAL MATERIALS LETTERS 14.8(2021).