报 告 人 ：何冠杰 副教授，伦敦大学学院
报告时间：2024年11月30日09:30
报告题目：Electrolyte Engineering in Zn-Ion Batteries电解液调控稳定Zn离子电池
报告地点：吉林大学中心校区物理楼333会议室
报告人简介：
Dr. Guanjie He is currently an Associate Professor and PhD supervisor in the Department of Chemistry at University College London (UCL). He obtained his PhD from UCL and spent part of his doctoral studies as a visiting scholar at Yale University. His research focuses on the preparation of novel materials and advanced characterization and simulation, particularly their applications in aqueous electrochemical energy storage and conversion. He has published over 150 academic papers as a corresponding/first author in prestigious journals including Joule, Nat. Commun., JACS, Angew. Chem. Int. Ed., Adv. Mater., Energy Environ. Sci., ACS Energy Lett., Adv. Energy Mater., ACS Nano, Adv. Funct. Mater., and Sci. Bull., accumulating over 10,800 citations with an h-index of 60. He has been honored with the Nanoscale, JMCA Emerging Investigator Prize, EPSRC Early Career Research Fellowship, ERC Starting Grant, and STFC Ernest Rutherford Fellowship, among others. He leads research projects totaling over £3 million, including the ERC Starting Grant. Dr. He serves as an Associate Editor of Battery Energy and on the editorial board of Green Energy Environ., Sci. China Mater., Nano Res. Energy, Energy Environ. Mater., Adv. Powder Mater., and J. Met., Mater. Miner. He was elected a Fellow of the Institute of Materials, Minerals and Mining (IOM3) in 2023 and a Fellow of the Royal Society of Chemistry (FRSC) in 2024.
何冠杰博士，现任伦敦大学学院(UCL)化学系副教授，博士生导师。于UCL获得博士学位，攻读博士期间访学耶鲁大学。研究领域主要为新型材料制备和先进表征与模拟，及其在水系电化学储能和转化领域应用。以通讯/第一作者在Joule, Nat. Commun., JACS, Angew. Chem. Int. Ed., Adv. Mater., Energy Environ. Sci., ACS Energy Lett., Adv. Energy Mater., ACS Nano, Adv. Funct. Mater.和Sci. Bull.等刊物发表学术论文150余篇，被引10800余次，h指数60。荣获Nanoscale, JMCA 新锐科学家，EPSRC新锐学者奖，ERC Starting Grant和STFC青年学者奖等荣誉。主持超过300万英镑科研项目，包括欧洲研究理事会科研启动基金(ERC Starting Grants)等。担任Battery Energy期刊副主编、Green Energy Environ.、Sci. China Mater.、Nano Res. Energy、Energy Environ. Mater.、Adv. Powder Mater.、J. Met., Mater. Miner.期刊(青年)编委。2023年入选英国材料、矿物和采矿学会会士。2024年入选英国皇家化学会会士 (FRSC)。
报告简介：
Under the increasingly severe climate and regulative pressures to achieve carbon neutrality, current electrochemical energy storage systems are in need of a radical upgrade to meet various demands from end users. Aqueous zinc ion batteries (AZIBs) provide sustainable routes to grid-scale energy storage because of their cost and safety advantages, using mild aqueous electrolytes and abundant metallic zinc anodes. Besides, owing to the distinctive merits such as relatively high ionic conductivity, environmental benignity, low risks of flammability and considerable energy density of AZIBs compared with conventional Li-ion batteries, AZIBs are intensively investigated to unleash the potential for practical applications. However, the development of rechargeable AZIBs is plagued by poor reversibility due to a series of intrinsic issues, such as hydrogen evolution and Zn dendrite formation. Significantly, the advances in materials discovery and innovation in device configuration have improved the performance of AZIBs in all aspects, including durability, operating voltage range, energy/power density, and economic availability. Different electrolyte components are investigated intensively to suppress the side reaction on the Zn anodes. However, further improvements are needed, especially for realizing the requirement for high energy density and high stability scenarios. The recent progress of AZIBs technology, such as facile electrolyte components and additives for aqueous AZIBs will be discussed in this talk.
水系锌离子电池因具有环境友好, 低成本的优点,有望用于下一代大规模储能。然而，水系锌离子电池的实际应用受到有关水的副反应和枝晶问题的限制。引入电解液添加剂可以抑制锌阳极上的副反应并扩大水性电解液的工作电位窗口。本报告將介绍我们开发的一种新型的检测锌枝晶的技术手段。关于锌离子基于锌负极保护，此次报告从电解质设计角度出发，主要包括两类研究。一是溶剂化结构调控，二是原位生成SEI层的调控。
