报告题目：Fiber-based Wearable Energy Storage Devices and Beyond

报告人：郑子剑 教授

邀请人：霍峰蔚 教授

报告时间：2021年12月13日（星期一）10:00

报告形式：腾讯会议（会议号码：432-424-237）

摘要

Fiber-based Wearable Energy Storage Devices and Beyond

Zijian Zheng

1. Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon,
   Hong Kong SAR, China

2. Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Kowloon,
   Hong Kong SAR, China

3. Research Institute for Smart Energy, The Hong Kong Polytechnic University, Kowloon,
   Hong Kong SAR, China

Email:tczzheng@polyu.edu.hk

Wearable energy storage devices are indispensable corner stones for future wearable electronics. Current energy storage technologies are based on materials and devices that are rigid, bulky, and heavy, making them difficult to wear. On the other hand, fibers are flexible and lightweight materials that can be assembled into different textiles and have been worn by human beings thousands of years. Different from conventional two-dimensional thin films and foils, the three-dimensional fibre and textile structures not only provide superior wearing ability, but also much larger surface areas. This talk will introduce how our research group makes use of the attributes of fibres for high-performance wearable energy storage devices. We will demonstrate the strategies and discuss the perspectives to modify fibers and textiles for making wearable capacitators and batteries with excellent mechanical durability, electrochemical stability, and high energy/power density. We will also show that the fibrous materials can significantly enhance the stability and energy density of battery.

References

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[2] Y. Gao, C. Xie, Z. J. Zheng*, Adv. Energy Mater. 2020, 2002838

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[5] Y. Yang, Q. Huang, L. Niu, D. Wang, C. Yan, Y. She, Z. J. Zheng*, Adv. Mater. 2017, 160667.

[6] J. Chang, Z.J.Zheng* et al., Nat. Commun. 2018, 2018, 9, 4480.

[7] J. Chang, Q. Huang, and Z. J. Zheng*, Joule 2020, 4, 7, 1346

[8] J. Chang, Q. Huang, Y. Gao, Z. J. Zheng*, Adv. Mater. 2021, 202004419.

[9] Y. Gao, H. Hu, J. Chang, Q. Huang, Q. Zhuang, P. Li, Z. J. Zheng*, Adv. Energy Mater. 2021, 2101809.

[10] L. Wang, J. Shang, Q. Huang, H. Hu, Y. Zhang, C. Xie, Y. Luo, Y. Gao, H. Wang, Z. J. Zheng*, Adv. Mater. 2021, 2102802.

个人简介

Prof. Zijian Zheng is currently Full Professor at the Institute of Textile and Clothing (ITC) and Research Institute for Smart Energy (RISE) at The Hong Kong Polytechnic University. His research interests are surface and polymer science, nanofabrication, flexible and wearable electronics, energy conversion and storage. Prof. Zheng received his B. Eng. in Chemical Engineering at Tsinghua University in 2003, and PhD in Chemistry at University of Cambridge in 2007 (Supervisor: Prof. Wilhelm T. S. Huck). In 2008, he worked as postdoctoral researcher with Prof. Chad A. Mirkin at Northwestern University in the USA. He joined ITC as Assistant Professor in 2009, and was promoted to tenured Associate Professor in 2013 and Professor in 2017. He has published ~120 papers in high-impact international scientific journals includingScience,Nat. Mater.,Nat. Comm.,Adv. Mate.,JACS,Angew. Chem.. He also files 25+ patents and is recipient of more than 15 academic awards. He serves as Guest Editor ofAdvanced MaterialsandSmall, and Editor-in-Chief ofEcoMat, a flagship open-access journal in green energy and environment published by Wiley. He is elected Founding Member of The Young Academy of Sciences of Hong Kong (2018), Chang Jiang Chair Professor by the Ministry of Education of China (2020), and Senior Research Fellow of the University Grant Commission of Hong Kong (2021).