气候变化领域集成服务门户(CCPortal): A scaling law to determine phase morphologies during ion intercalation

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DOI	10.1039/d0ee00653j
	A scaling law to determine phase morphologies during ion intercalation
	Fraggedakis D.; Nadkarni N.; Gao T.; Zhou T.; Zhang Y.; Han Y.; Stephens R.M.; Shao-Horn Y.; Bazant M.Z.
发表日期	2020
ISSN	1754-5692
起始页码	2142
结束页码	2152
卷号	13 期号:7
英文摘要	Driven phase separation in ion intercalation materials is known to result in different non-equilibrium phase morphologies, such as intercalation waves and shrinking-core structures, but the mechanisms of pattern selection are poorly understood. Here, based on the idea that the coarsening of the slowest phase is the rate limiting step, we introduce a scaling law that quantifies the transition from quasi-equilibrium intercalation-wave to diffusion-limited shrinking-core behavior. The scaling law is validated by phase-field simulations of single LixCoO2 particles, in situ optical imaging of single LixC6 particles undergoing transitions between stage 1 (x = 1) and 2 (x = 0.5) at different rates, and all the available literature data for single-particle imaging of LixCoO2, LixC6 and LixFePO4. The results are summarized in operational phase diagrams to guide simulations, experiments, and engineering applications of phase-separating active materials. Implications for Li-ion battery performance and degradation are discussed. © 2020 The Royal Society of Chemistry.
语种	英语
scopus关键词	Coarsening; Cobalt compounds; Ions; Iron compounds; Lithium compounds; Lithium-ion batteries; Phase separation; Scaling laws; Diffusion limited; Engineering applications; Ion intercalation; Non-equilibrium phase; Pattern selection; Phase-field simulation; Quasi equilibrium; Rate-limiting steps; Phosphorus compounds; disequilibrium; ion exchange; particle size; phase transition; separation
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/162457
作者单位	Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Shell International Exploration and Production Inc., Houston, TX 77082, United States; Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
推荐引用方式 GB/T 7714	Fraggedakis D.,Nadkarni N.,Gao T.,et al. A scaling law to determine phase morphologies during ion intercalation[J],2020,13(7).
APA	Fraggedakis D..,Nadkarni N..,Gao T..,Zhou T..,Zhang Y..,...&Bazant M.Z..(2020).A scaling law to determine phase morphologies during ion intercalation.Energy and Environmental Science,13(7).
MLA	Fraggedakis D.,et al."A scaling law to determine phase morphologies during ion intercalation".Energy and Environmental Science 13.7(2020).