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讲准字277号:高安全电池中的金属锂保护

发布时间:2018-10-08|浏览次数:

题目:高安全电池中的金属锂保护

主讲:张强

时间:2018年10月11日 15:30

地点:化学化工学院212报告厅

主办:化学化工学院


主讲简介:张强,清华大学教授。研究专长:能源材料研究,尤其是金属锂、锂硫电池和电催化的研究。张强,清华大学长聘教授,从事能源材料研究,尤其是金属锂、锂硫电池和电催化的研究。曾获得中组部万人计划青年拔尖人才、英国皇家学会Newton Advanced Fellowship、国家自然科学基金优秀青年基金、2017年科睿唯安全球高被引科学家。担任国际期刊J Energy Chem编辑、Adv Mater Interfaces、Sci China Mater、Sci China Chem、Philos Trans A编委,Energy Storage Mater、Adv Funct Mater客座编辑。主持国家重点研发计划课题、自然科学基金、教育部博士点基金、北京市科委重点项目等。担任Nature Energy、Nature Nanotech、Nature Catal、Sci. Adv.、JACS、Adv. Mater.、Angew. Chem.等期刊特约审稿人或仲裁人。以第一作者/通讯作者在Adv. Mater., J. Am. Chem. Soc., Angew. Chem. Int. Ed., Nature Commun., Sci. Adv., Chem等发表SCI收录论文100余篇;所发论文引用17000余次,h因子为76,61篇为ESI高引用学术论文。

主讲内容:Li metal is considered as the “Holy Grail” of energy storage systems. The bright prospects give rise to worldwide interests in the metallic Li for the next generation energy storage systems, including highly considered rechargeable metallic Li batteries such as Li-O2 and Li-sulfur (Li–S) batteries. However, the formation of Li dendrites induced by inhomogeneous distribution of current density on the Li metal anode and the concentration gradient of Li ions at the electrolyte/electrode interface is a crucial issue that hinders the practical demonstration of high-energy-density metallic Li batteries. In this talk, we review energy chemistry of lithium metal anode in safe batteries. Firstly, the importance and dilemma of Li metal anode issues in lithium–sulfur batteries are underscored, aiming to arouse the attentions to Li metal anode protection. Specific attentions are paid to the surface chemistry of Li metal anode. Next, the proposed strategies to stabilize solid electrolyte interface and protect Li metal anode are included. Finally, a general conclusion and a perspective on the current limitations, as well as recommended future research directions of Li metal anode in rechargeable batteries are presented.


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