气候变化领域集成服务门户(CCPortal): A renaissance of: N, N -dimethylacetamide-based electrolytes to promote the cycling stability of Li-O2batteries

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DOI	10.1039/d0ee01897j
	A renaissance of: N, N -dimethylacetamide-based electrolytes to promote the cycling stability of Li-O2batteries
	Yu Y.; Huang G.; Du J.-Y.; Wang J.-Z.; Wang Y.; Wu Z.-J.; Zhang X.-B.
发表日期	2020
ISSN	17545692
起始页码	3075
结束页码	3081
卷号	13 期号:9
英文摘要	Li-O2 batteries with ultrahigh theoretical energy density have been regarded as a promising successor to Li-ion batteries for next-generation energy storage. However, their practical application is still facing many critical issues, especially the lack of suitable electrolytes that can tolerate a strong oxidizing environment as well as being compatible with a Li metal anode. Here, we design a new N,N-dimethylacetamide (DMA)-based electrolyte by regulating the Li+ solvation structure under medium concentration to promote the cycling stability of Li-O2 batteries. And it is also a better lithium metal anode stabilization strategy than using high concentration electrolytes. In contrast to high concentration electrolytes with expensive cost, limited protection ability toward the Li anode, sluggish kinetics and slow mass transfer, this new electrolyte with intrinsic better endurance towards the rigorous oxidative species can simultaneously stabilize the Li anode by facilitating the formation of a LiF and LiNxOy coexisting solid electrolyte interphase (SEI) film and enable faster kinetics/mass transfer. As a result, both the symmetrical batteries (1800 hours) and the Li-O2 batteries (180 cycles) achieve the best cycling performances in DMA-based electrolytes to our knowledge. This study breathes new life into the electrolyte regulation strategy and paves the way for the development of alkali-O2 batteries. This journal is © The Royal Society of Chemistry.
英文关键词	Anodes; Energy storage; Lithium compounds; Lithium-ion batteries; Mass transfer; Solid electrolytes; Concentration electrolyte; Cycling performance; Electrolyte regulation; Lithium metal anode; N ,N-Dimethylacetamide; Oxidizing environments; Solid electrolyte interphase film; Solvation structure; Lithium-air batteries; chemical bonding; electrochemistry; electrolyte; equipment component; oxide group; performance assessment
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189548
作者单位	State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Science and Technology of China, Hefei, 230026, China; Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
推荐引用方式 GB/T 7714	Yu Y.,Huang G.,Du J.-Y.,et al. A renaissance of: N, N -dimethylacetamide-based electrolytes to promote the cycling stability of Li-O2batteries[J],2020,13(9).
APA	Yu Y..,Huang G..,Du J.-Y..,Wang J.-Z..,Wang Y..,...&Zhang X.-B..(2020).A renaissance of: N, N -dimethylacetamide-based electrolytes to promote the cycling stability of Li-O2batteries.Energy & Environmental Science,13(9).
MLA	Yu Y.,et al."A renaissance of: N, N -dimethylacetamide-based electrolytes to promote the cycling stability of Li-O2batteries".Energy & Environmental Science 13.9(2020).