【海外英才分论坛学术报告】Nanomaterials based on electrospinning technique for efficient lithium/sodium storage
时 间：2019年5月14日10:45-11:30
地 点：仓山校区环境学院大楼二楼多媒体教室
主 讲：香港理工大学 李小燕 博士后
主 办：环境科学与工程学院
专家简介：李小燕，女， 2015年9月获得香港理工大学博士学位。现在香港理工大学从事博士后工作。研究主要围绕静电纺丝、水热合成及热处理等简便方法，制备各种一维纳米材料及其与过渡金属氧化物、贵金属等复合的杂化纳米材料，并将其应用于环境能源、光催化降解有机物等领域。在Chem (Cell子刊)、J. Am. Chem. Soc.、Angew. Chem. Int. Ed.、Energy Environ. Sci.、Adv. Funct. Mater.等期刊杂志上发表学术论文共20篇。担任Journal of Power Sources、Journal of Membrane Science、Journal of Alloys and Compounds、Materials Chemistry and Physics、Materials Letters等期刊独立审稿人。
报告摘要：In the past decades, lithium-ion batteries (LIBs) have been widely considered as one of the most promising energy storage devices. However, lithium sources are scare with uneven distribution on the Earth. Sodium-ion batterie (SIBs) are drawing increasing research interest due to the benefits such as low cost, high abundance and suitable redox potentials. The increasing development of electric vehicles and smart grids requires superior electrochemical performance of LIBs/SIBs in terms of energy and power densities. One-dimensional (1D) nanofiber structure is an attracting architecture, enabling the fast transportation of ions and electrons, yielding the enhanced electrochemical performance. We prepared a series of 1D nanomaterials based on electrospinning technique to enable efficient energy storage, where, metal oxide/sulfide with high theoretical capacity guarantees the energy density, and, 1D and porous structure with carbon hybrid provides the fast transportation of ions and electrons. Benefiting from the advantages of ingredient and architecture, excellent electrochemical performance in terms of rate capability and cyclability can be obtained. Our findings can pave new ways for developing superior electrodes for LIBs/SIBs.
