Lithium Dendrites Inhibition via Diffusion Enhancement

doi:10.1002/aenm.201900019

	Lithium Dendrites Inhibition via Diffusion Enhancement
	Chen, Yongxiu 1,2; Dou, Xiangyu 1,2; Wang, Kai 1,2; Han, Yongsheng 1,2
刊名	ADVANCED ENERGY MATERIALS
	2019-05-01
卷号	9 期号:17 页码:7
关键词	concentration gradient dendrites diffusion enhancement external electric field lithium batteries
ISSN号	1614-6832
DOI	10.1002/aenm.201900019
英文摘要	The dendritic structure is a disastrous problem of lithium metal batteries as well as other metal rechargeable batteries. The dendritic structures are usually caused by diffusion limitation. Here, a novel strategy is reported to inhibit lithium dendrites based on the understanding of their formation mechanism. An alternating current field perpendicular to the anode is set up, which promotes Li+ movement along the anode surface and prevents ions' deposition on the tips from forming dendrites. Furthermore, an external direct current field parallel to the current is employed, which accelerates the transport of Li+ in electrolytes to mitigate the concentration gradient nearby the anode and thus inhibits the formation of dendritic structures. A simultaneous employment of these two fields gains five times increase of the lifespan of batteries at the high charging current density of 2 mA cm(-2), confirming the effectiveness of this strategy in protecting the metal anode and inhibiting lithium dendrites. This strategy may have a wide feasibility since it does not change the materials and structures of batteries.
资助项目	National Natural Science Foundation of China[U1862117] ; National Natural Science Foundation of China[91534123] ; National Natural Science Foundation of China[91834303] ; Hundreds Talent Program from the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems[MPCS-2017-A-01] ; MPCS Facility Upgradation Program
WOS关键词	METAL ; SEPARATOR ; GROWTH ; CHALLENGES ; SUPPRESSION ; DEPOSITION ; PARTICLES ; BATTERIES
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000471338400012
资助机构	National Natural Science Foundation of China ; Hundreds Talent Program from the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems ; MPCS Facility Upgradation Program
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30080]
专题	中国科学院过程工程研究所
通讯作者	Han, Yongsheng
作者单位	1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yongxiu,Dou, Xiangyu,Wang, Kai,et al. Lithium Dendrites Inhibition via Diffusion Enhancement[J]. ADVANCED ENERGY MATERIALS,2019,9(17):7.
APA	Chen, Yongxiu,Dou, Xiangyu,Wang, Kai,&Han, Yongsheng.(2019).Lithium Dendrites Inhibition via Diffusion Enhancement.ADVANCED ENERGY MATERIALS,9(17),7.
MLA	Chen, Yongxiu,et al."Lithium Dendrites Inhibition via Diffusion Enhancement".ADVANCED ENERGY MATERIALS 9.17(2019):7.