报告题目：Nanoarray electrodes for high-rate thin-film batteries

报告人：Hong Jin Fan教授

报告时间：2019年1月26日上午9:30-11:30

报告地点：华南理工大学大学城校区B5-102会议室

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报告人简介：

         1999年吉林大学物理系学士，2003年新加坡国立大学物理系博士，其后分别在德国马普研究所和英国剑桥大学从事博士后，2008年加入南洋理工大学任教至今。主要研究领域包括纳米材料在能源中的应用，包括储能电池材料和电催化。已发表文章210多篇， H因子为72。2016 - 2018 连续三年材料类“高被引”作者。英国化学会会士(FSRC)。担任10个国际期刊编委成员。Email: fanhj@ntu.edu.sg

报告摘要：The performance of electrochemical energy storage devices relies largely on a scrupulous design of nanoarchitectures and smart hybridization of active materials. Nanoarray electrodes are particularly investigated for power source in microelectronics, which requires high rates, high areal capacity/capacitance and long cycle stability. When the metal-ion battery electrode materials are designed into nanostructures (e.g., 1D array, 2D nanosheets), the pseudocapacitive effect may become dominating and can boost the high-rate performance. Our group has been actively working on nanoarray materials directly on conductive substrates as electrodes of metal-ion battery. In this talk, I will articulate our material design strategies for both vanadium based intercalation-type cathode (VO_x, NVOPF) and tin based alloy-type anodes (SnS₂, SnS, SnSe₂), as well as di-chalcogenide MoSe₂. Most of these materials are made to 2D structure and employed for Na-ion and Zn-ion batteries. These examples demonstrate clearly the contribution of extrinsic pseudocapacitance effect to the high-rate performance. I will present array-based full Na-ion hybrid batteries and Zn-ion batteries.