摘要
Lithium(Li)metal batteries have long been deemed as the representative high-energy-density energy storage systems due to the ultrahigh theoretical capacity and lowest electrochemical potential of Li metal anode.Unfortunately,the intractable dendritic Li deposition during cycling greatly restrains the large-scale applications of Li metal anodes.Recent advances have been explored to address this issue,among which a specific class of electrolyte additives for electroplating is deeply impressive,as they are economic and pragmatic.Different from the conventional additives that construct solid electrolyte interphase(SEI)layer on anodes,they make dendrite-free Li metal anodes feasible through altering Li plating behavior.In this research news article,the interlinked principles between industrial electroplating and Li deposition are firstly illustrated.The featured effects of electroplating additives on regulating Li plating morphology are also summarized and mainly divided into three categories:co-deposition with Li cation,coordination with Li cation,and leveling effect of Li films.Furthermore,the mechanism exploration or derivative use of electroplating additive for dendrite suppression and potential research directions are proposed,with emphasizing that industrial electroplating might enable Li metal anode to scalable battery techniques and spread to metal battery systems beyond Li.
基金
support from National Nature Science Foundation of China(Grant No.51872157)
Shenzhen Technical Plan Project(Grant Nos.JCYJ20170412170911187 and JCYJ20170817161753629)
Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(Grant No.2017BT01N111)
Guangdong Technical Plan Project(Grant No.2017B090907005)
作者简介
Xianshu Wang,currently working as a postdoctoral researcher under the supervision of Prof.Baohua Li in the Tsinghua Shenzhen International Graduate School,Tsinghua University.He received his Ph.D.degree in New Energy Materials Chemistry&Physics from South China Normal University in 2016.His research interests are mainly focused on the advanced electrodes and electrolytes for rechargeable lithium metal batteries;Weicong Mai,Dr;Wenqiang Tu,Dr;Feiyu Kang,Prof;Baohua Li,Prof.,E-mail:libh@mail.sz.tsinghua.edu.cn,received his Ph.D.degree in chemical technology from the Institute of Coal Chemistry(ICC),Chinese Academy of Science(CAS)in 2002.Since 2014,he has been a full professor and the Director of the Division of Energy and Environment in the Graduate School at Shenzhen,Tsinghua University.His research interests are focused on the application of advanced carbon materials for high-performance energy-storage devices,including lithium-ion batteries,lithium-sulfur batteries,electrochemical supercapacitors,and so on;Weishan Li,Prof.,E-mail:liwsh@scnu.edu.cn,received his Ph.D.in 1996 from South China University of Technology.He is now a professor in the School of Chemistry and Environment,South China Normal University,and the director of the Engineering Research Center of Technology for Electrochemical Energy Storage,Minister of Education,China.His current research focuses on new materials for electrochemical energy conversion and storage
