Dual Additives for Stabilizing Li Deposition and SEI Formation in Anode-Free Li-Metal Batteries

doi:10.1002/eem2.12642

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	Dual Additives for Stabilizing Li Deposition and SEI Formation in Anode-Free Li-Metal Batteries
	Wu, Baolin ; Chen CG(陈春光); Danilov, Dmitri L ; Chen, Zhiqiang ; Jiang, Ming ; Eichel, Ruedigera ; Notten, Peter Hl
刊名	ENERGY & ENVIRONMENTAL MATERIALS
	2023-06-06
关键词	anode-free lithium metal battery dual additives in situ Raman Li growth SEI formation
DOI	10.1002/eem2.12642
英文摘要	Anode-free Li-metal batteries are of significant interest to energy storage industries due to their intrinsically high energy. However, the accumulative Li dendrites and dead Li continuously consume active Li during cycling. That results in a short lifetime and low Coulombic efficiency of anode-free Li-metal batteries. Introducing effective electrolyte additives can improve the Li deposition homogeneity and solid electrolyte interphase (SEI) stability for anode-free Li-metal batteries. Herein, we reveal that introducing dual additives, composed of LiAsF6 and fluoroethylene carbonate, into a low-cost commercial carbonate electrolyte will boost the cycle life and average Coulombic efficiency of NMC\|\|Cu anode-free Li-metal batteries. The NMC\|\|Cu anode-free Li-metal batteries with the dual additives exhibit a capacity retention of about 75% after 50 cycles, much higher than those with bare electrolytes (35%). The average Coulombic efficiency of the NMC\|\|Cu anode-free Li-metal batteries with additives can maintain 98.3% over 100 cycles. In contrast, the average Coulombic efficiency without additives rapidly decline to 97% after only 50 cycles. In situ Raman measurements reveal that the prepared dual additives facilitate denser and smoother Li morphology during Li deposition. The dual additives significantly suppress the Li dendrite growth, enabling stable SEI formation on anode and cathode surfaces. Our results provide a broad view of developing low-cost and high-effective functional electrolytes for high-energy and long-life anode-free Li-metal batteries.
分类号	一类
WOS研究方向	Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:001007634700001
资助机构	China Scholarship Council
其他责任者	Danilov, DL ; Notten, PHL (corresponding author), Forschungszentrum Julich IEK 9, D-52425 Julich, Germany. ; Chen, CG (corresponding author), Chinese Acad Sci, LNM Inst Mech, Beijing 100190, Peoples R China. ; Chen, CG (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China. ; Danilov, DL ; Notten, PHL (corresponding author), Eindhoven Univ Technol, POB 513, NL-5600 MB Eindhoven, Netherlands. ; Notten, PHL (corresponding author), Univ Technol Sydney, Sydney, NSW 2007, Australia.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92379]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.{Notten Peter H. L.} Univ Technol Sydney Sydney NSW 2007 Australia 2.{Jiang Ming} Hangzhou Dianzi Univ Inst Carbon Neutral & New Energy Sch Elect & Informat Hangzhou 310018 Peoples R China 3.{Danilov Dmitri L., Chen Zhiqiang, Notten Peter H. L.} Eindhoven Univ Technol POB 513 NL-5600 MB Eindhoven Netherlands 4.{Chen Chunguang} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 5.{Chen Chunguang} Chinese Acad Sci LNM Inst Mech Beijing 100190 Peoples R China 6.{Wu Baolin, Eichel Ruediger-A.} Rhein Westfal TH Aachen D-52074 Aachen Germany 7.{Wu Baolin, Danilov Dmitri L., Eichel Ruediger-A., Notten Peter H. L.} Forschungszentrum Julich IEK 9 D-52425 Julich Germany
推荐引用方式 GB/T 7714	Wu, Baolin,Chen CG,Danilov, Dmitri L,et al. Dual Additives for Stabilizing Li Deposition and SEI Formation in Anode-Free Li-Metal Batteries[J]. ENERGY & ENVIRONMENTAL MATERIALS,2023.
APA	Wu, Baolin.,陈春光.,Danilov, Dmitri L.,Chen, Zhiqiang.,Jiang, Ming.,...&Notten, Peter Hl.(2023).Dual Additives for Stabilizing Li Deposition and SEI Formation in Anode-Free Li-Metal Batteries.ENERGY & ENVIRONMENTAL MATERIALS.
MLA	Wu, Baolin,et al."Dual Additives for Stabilizing Li Deposition and SEI Formation in Anode-Free Li-Metal Batteries".ENERGY & ENVIRONMENTAL MATERIALS (2023).