气候变化领域集成服务门户(CCPortal): Electrochemomechanics of lithium dendrite growth

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DOI	10.1039/c9ee01864f
	Electrochemomechanics of lithium dendrite growth
	Jana A.; Woo S.I.; Vikrant K.S.N.; García R.E.
发表日期	2019
ISSN	1754-5692
起始页码	3595
结束页码	3607
卷号	12 期号:12
英文摘要	A comprehensive roadmap describing the current density- and size-dependent dendrite growth mechanisms is presented. Based on a thermodynamically consistent theory, the combined effects of chemical diffusion, electrodeposition, and elastic and plastic deformation kinetics are analyzed to rationalize their contributions to experimentally observable morphologies. A critical current density, î∗ = zFiliml(ΔGΩκi), in the tσ < t < tSand range, results in plastic flow at the tips, dendrite bifurcation, and bent and kinked morphologies. Three dendrite growth mechanisms are observed: (1) electrochemical shielding, where there is practically no electrodeposition/electrodissolution; (2) stress-induced electrodissolution and electrodeposition on those interfaces directly facing each other, generating a self-sustained overpotential that pushes the dendrites towards the counter electrode; and (3) local, lateral plastic extrusion in those side branches experiencing non-hydrostatic stresses. Six regimes of lithium electrodeposit growth are identified: (i) thermodynamic suppression regime, (ii) incubation regime, (iii) base-controlled regime, (iv) tip-controlled regime, (v) mixed regime, and (vi) Sand's regime. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Chemical analysis; Electrodeposition; Lithium; Chemical diffusion; Combined effect; Counter electrodes; Dendrite growth; Elastic and plastic deformation; Electrodissolution; Lithium dendrite; Non-hydrostatic; Electrodes; electrical method; experimental study; lithium; mechanics; thermodynamics
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162524
作者单位	School of Materials Engineering, Purdue University, West Lafayette, IN 47907, United States
推荐引用方式 GB/T 7714	Jana A.,Woo S.I.,Vikrant K.S.N.,et al. Electrochemomechanics of lithium dendrite growth[J],2019,12(12).
APA	Jana A.,Woo S.I.,Vikrant K.S.N.,&García R.E..(2019).Electrochemomechanics of lithium dendrite growth.Energy and Environmental Science,12(12).
MLA	Jana A.,et al."Electrochemomechanics of lithium dendrite growth".Energy and Environmental Science 12.12(2019).