气候变化领域集成服务门户(CCPortal): Concentrated mixed cation acetate "water-in-salt" solutions as green and low-cost high voltage electrolytes for aqueous batteries

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DOI	10.1039/c8ee00833g
	Concentrated mixed cation acetate "water-in-salt" solutions as green and low-cost high voltage electrolytes for aqueous batteries
	Lukatskaya M.R.; Feldblyum J.I.; Mackanic D.G.; Lissel F.; Michels D.L.; Cui Y.; Bao Z.
发表日期	2018
ISSN	17545692
起始页码	2876
结束页码	2883
卷号	11 期号:10
英文摘要	Electrolyte solutions are a key component of energy storage devices that significantly impact capacity, safety, and cost. Recent developments in "water-in-salt" (WIS) aqueous electrolyte research have enabled the demonstration of aqueous Li-ion batteries that operate with capacities and cyclabilities comparable with those of commercial non-aqueous Li-ion batteries. Critically, the use of aqueous electrolyte mitigates safety risks associated with non-aqueous electrolytes. However, the high cost and potential toxicity of imide-based WIS electrolytes limit their practical deployment. In this report, we disclose the efficacy of inexpensive, non-toxic mixed cation electrolyte systems for Li-ion batteries that otherwise provide the same benefits as current WIS electrolytes: extended electrochemical stability window and compatibility with traditional intercalation Li-ion battery electrode materials. We take advantage of the high solubility of potassium acetate to achieve the WIS condition in a eutectic mixture of lithium and potassium acetate with water-to-cation ratio as low as 1.3. Our work suggests an important direction for the practical realization of safe, low-cost, and high-performance aqueous Li-ion batteries. © 2018 The Royal Society of Chemistry.
英文关键词	Costs; Electrolytes; Lithium compounds; Positive ions; Potassium compounds; Toxic materials; Aqueous batteries; Aqueous electrolyte; Electrochemical stabilities; Electrolyte solutions; Electrolyte systems; Li-ion battery electrodes; Non-aqueous electrolytes; Potassium acetate; Lithium-ion batteries; acetate; aqueous solution; electrochemical method; electrolyte; energy storage; fuel cell; instrumentation; ion exchange; 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/190112
作者单位	Department of Chemical Engineering, Stanford, CA 94305, United States; Department of Chemistry, University at Albany, SUNY, Albany, NY 12222, United States; Leibniz Institute of Polymer Research, Dresden, 01069, Germany; Computational Sciences Group, KAUST, Thuwal, 23955, United Kingdom; Department of Materials Science and Engineering, Stanford University, Stanford, CA 9430, United States
推荐引用方式 GB/T 7714	Lukatskaya M.R.,Feldblyum J.I.,Mackanic D.G.,et al. Concentrated mixed cation acetate "water-in-salt" solutions as green and low-cost high voltage electrolytes for aqueous batteries[J],2018,11(10).
APA	Lukatskaya M.R..,Feldblyum J.I..,Mackanic D.G..,Lissel F..,Michels D.L..,...&Bao Z..(2018).Concentrated mixed cation acetate "water-in-salt" solutions as green and low-cost high voltage electrolytes for aqueous batteries.Energy & Environmental Science,11(10).
MLA	Lukatskaya M.R.,et al."Concentrated mixed cation acetate "water-in-salt" solutions as green and low-cost high voltage electrolytes for aqueous batteries".Energy & Environmental Science 11.10(2018).