气候变化领域集成服务门户(CCPortal): Trackable galvanostatic history in phase separation based electrodes for lithium-ion batteries: A mosaic sub-grouping intercalation model

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DOI	10.1039/c7ee02138k
	Trackable galvanostatic history in phase separation based electrodes for lithium-ion batteries: A mosaic sub-grouping intercalation model
	Park K.-Y.; Hong J.; Seong W.-M.; Kim J.-J.; Ku K.; Lee B.; Kang K.
发表日期	2017
ISSN	17545692
起始页码	2352
结束页码	2364
卷号	10 期号:11
英文摘要	An in-depth understanding of electrode reactions is essential to achieve a breakthrough in lithium-ion battery technology, the new 'engine' for electric vehicles. Recent studies have continued to reveal unexpected electrode behaviors, providing a more refined view of the operating mechanisms of electrodes from the atomistic to particle level and offering new perspectives to design better battery systems. Herein, it is observed for the first time that the history of applied current densities is memorized in electrode materials that operate via a two-phase reaction and systematically induces a transient galvanostatic profile variation of the electrode. These unforeseen profile changes can be explained by a new proposed intercalation model in which active particle sub-groupings are intermittently generated with a non-uniform chemical potential distribution at the end of charge or discharge. The types of active particle groupings are determined by the current density of the prior charge or discharge, resulting in distinct signatures in the electrochemical profile in the subsequent galvanostatic process. Our proposed intercalation model affords a more comprehensive view of the behavior of electrodes containing many-body particles by elucidating the effect of the applied current densities. © The Royal Society of Chemistry 2017.
英文关键词	Current density; Electric batteries; Electric discharges; Electrodes; Ion engines; Phase separation; Secondary batteries; Chemical potential distribution; Electrode behavior; Electrode material; Electrode reactions; In-depth understanding; Lithium-ion-battery technology; Operating mechanism; Two-phase reactions; Lithium-ion batteries; chemical reaction; electrochemical method; electrode; fuel cell; lithium; numerical model; operations technology; separation
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/190379
作者单位	Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, South Korea; Center for Nanoparticle Research at Institute for Basic Science (IBS), Seoul National University, 1 Gwanak-ro, Gwanak-gu Seoul, South Korea; Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, United States
推荐引用方式 GB/T 7714	Park K.-Y.,Hong J.,Seong W.-M.,et al. Trackable galvanostatic history in phase separation based electrodes for lithium-ion batteries: A mosaic sub-grouping intercalation model[J],2017,10(11).
APA	Park K.-Y..,Hong J..,Seong W.-M..,Kim J.-J..,Ku K..,...&Kang K..(2017).Trackable galvanostatic history in phase separation based electrodes for lithium-ion batteries: A mosaic sub-grouping intercalation model.Energy & Environmental Science,10(11).
MLA	Park K.-Y.,et al."Trackable galvanostatic history in phase separation based electrodes for lithium-ion batteries: A mosaic sub-grouping intercalation model".Energy & Environmental Science 10.11(2017).