报告题目：Synthesis and Properties of Modified Cathodes for Lithium-Chalcogenides Batteries

报告人：德州大学奥斯汀分校 贺加瑞 博士

报告时间：2018年6月19日（周二）下午15:30

报告地点：子良楼A220会议室

邀请人：新能源材料与技术研究所  夏阳 副教授

报告人简介：

贺加瑞博士2018年于电子科技大学获博士学位，师从陈远富教授，2018年起在美国德州大学奥斯汀分校从事博士后研究，合作导师：Arumugam Manthiram教授。主要从事可再生能源转换和能源存储研究工作。已发表JCR一区论文30多篇，其中包括Adv. Mater., ACS Nano, ACS Energy Lett., J. Mater. Chem. A, Small等，被引次数逾1000次，h因子为21。

报告内容简述：

The energy density and cycle life of existing lithium-ion batteries remain insufficient for many of the applications, prompting the urgent need for new electrode materials with much higher specific capacities. Lithium-chalcogenides batteries, such as S, Se, Te, and Li2S based batteries, have been considered as the good candidates as the high-performance and noval rechargeable batteries, owing to their high theoretical specific capacity, abundant resources and low competitive cost. However, so far, the lithium-chalcogenides batteries are plagued by a series of problems before their practical application, such as low active utilization, poor cycling performance, and low rate capability. In order to address those issues, in this talk, several highly conductive carbonaceous materials with the well-designed the architecture, such as graphene, carbon nanotube and metal-organic frameworks derived materials, are employed as chalcogenides host for the high performance lithium-chalcogenides batteries. And then we systermly investigate the electrochemical performance and reveal the redox chemistry of those cathodes to provides insights to design new open structured and high-performance cathode materials for lithium-chalcogenides battery.