学术报告

时间：2018年3月13日（周二）下午4:30-5:30

地点： 厦门大学材料学院科学楼404会议室

报告人：美国密西根州立大学 李云松 博士

Computational Insights to Charge Transfer Reactions

at the Complex Electrode/SEI/Electrolyte Interface

A nanometer thick passivation layer, so called “solid electrolyte interphase (SEI)”, will spontaneously form on Li-metal in battery applications due to electrolyte reduction reactions. This passivation layer is considered as “the most important but the least understood in rechargeable Li ion batteries”, partly due to the lack of understanding of its structure-property relationship. This passivation layer in rechargeable batteries must have “selective” transport properties. The classical description of the electrochemical reaction, Li⁺+e^-®Li⁰, occurring at the Li-metal|electrolyte interface is now complicated by the passivation layer and will reply on the coupling of electronic and ionic degrees of freedom in the layer. Predictive modeling, starting from the ab initio level, becomes an important tool to understand the nanoscale processes and materials properties governing the interfacial charge transfer reaction at the Li-metal|SEI|electrolyte interface. This talk will provide the computational insights to the electrochemical reactions at the Li-metal|SEI|electrolyte interface.

福建省特种先进材料重点实验室

李云松 博士

2012年获厦门大学材料物理与化学博士学位，随后到香港科技大学机械与航空航天工程系从事博士后研究，主要探讨钙钛矿纳米薄膜的相变机理和金属有机框架材料的吸/脱附机理。2015年进入美国密歇根州立大学化学工程与材料科学系，主要从事锂金属电极/SEI/电解液界面的电子和离子的传输问题研究。