气候变化领域集成服务门户(CCPortal): Thermodynamic origin of dendrite growth in metal anode batteries

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DOI	10.1039/d0ee02665d
	Thermodynamic origin of dendrite growth in metal anode batteries
	Hagopian A.; Doublet M.-L.; Filhol J.-S.
发表日期	2020
ISSN	17545692
起始页码	5186
结束页码	5197
卷号	13 期号:12
英文摘要	The formation of dendrites in alkali and alkaline earth-metal batteries leads to short circuit and catastrophic battery failure which hinders the development of high-energy-density battery technology. Herein, we investigate the thermodynamic origin of this complex phenomenon and show that kinetic transport limitation of metal cations in the electrolyte is not the only factor controlling the formation of dendrites. The specific behavior of Li, Na and Mg electrodes towards dendritic growth is straightforwardly deduced from the shape of their electro-capillary diagrams, as computed from a grand canonical DFT approach. The whisker and dendrite morphologies associated with the different growth regimes are fully rationalized by the present methodology and the critical parameters controlling the dendritic growth on metallic surfaces are clearly identified. Further improving the description of the interface by means of a simplified yet realistic SEI built on carbonate-based decomposition products, we show that the over-potentials at which each growth regime is expected to occur can be predicted at a quantitative level, hence allowing the design of chemical strategies to prevent dendrite growth at metallic surfaces. More specifically, high surface tension associated with low surface capacitance and low potential of zero-charge is the target triptych to favor safe battery operation and can be obtained through appropriate chemical engineering. This journal is © The Royal Society of Chemistry.
英文关键词	Alkalinity; Design for testability; Electrodes; Electrolytes; Metals; Product design; Surface measurement; Battery operation; Decomposition products; Dendrite morphology; High-energy density batteries; Kinetic transport; Potential of zero charge; Quantitative level; Surface capacitance; Electric batteries; crystal structure; decomposition analysis; electrode; energy efficiency; energy storage; prediction; thermodynamics
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/189447
作者单位	Icgm, University of Montpellier, Cnrs, Enscm, Montpellier, France; RS2E French Network on Electrochemical Energy Storage, Amiens, FR5439, France
推荐引用方式 GB/T 7714	Hagopian A.,Doublet M.-L.,Filhol J.-S.. Thermodynamic origin of dendrite growth in metal anode batteries[J],2020,13(12).
APA	Hagopian A.,Doublet M.-L.,&Filhol J.-S..(2020).Thermodynamic origin of dendrite growth in metal anode batteries.Energy & Environmental Science,13(12).
MLA	Hagopian A.,et al."Thermodynamic origin of dendrite growth in metal anode batteries".Energy & Environmental Science 13.12(2020).