摘要：Ourresearch focuses on development of flexible energy storage/conversion devices,including supercapacitors, batteries and metal air batteries. Here we introducean extremely safe and wearable solid-state zinc ion battery (ZIB) comprising anovel gelatin and PAM based hierarchical polymer electrolyte (HPE) and anα-MnO2 nanorod/carbon nanotube (CNT) cathode. Benefiting from the well-designedelectrolyte and electrodes, the flexible solid-state ZIB delivers a high arealenergy density and power density (6.18 mWh cm-2 and 148.2 mW cm-2,respectively), high specific capacity (306 mAh g-1) and excellentcycling stability (97% capacity retention after 1000 cycles at 2772 mA g-1).More importantly, the solid-state ZIB offers high wearability and extremesafety performance over conventional flexible LIBs, and performs very wellunder various severe conditions, such as being greatly cut, bent, hammered,punctured, sewed, washed in water or even put on fire. In addition, flexibleZIBs were integrated in series to power a commercial smart watch, a wearablepulse senor, and a smart insole, which is the first time that has been achievedto the best of our knowledge.。Dr. Chunyi Zhi got his PhD degree in physics frominstitute of physics, Chinese Academy of Sciences. After that, he started towork as a postdoctoral researcher in National Institute for Materials Science(NIMS) in Japan, followed by a research fellow in International Center forYoung Scientists in NIMS and a permanent position in NIMS as a seniorresearcher. He is currently an associate professor in Department of MaterialsScience & Engineering, City University of Hong Kong. Zhi’s research focuseson flexible/wearable energy storage devices and zinc-based batteries etc. Hehas published more than 250 papers with an other-citation of >14000 andh-index of 66. He has also been authorized more than 70 patents。

中南大学化学化工学院化语轩第三期学术交流会

讲座信息

报告题目： AqueousElectrolyte Battery based Flexible Energy Storage

报告人：Dr. Chunyi Zhi (City University of Hong Kong)

邀请人：纪效波

时间：2019年5月12日（周日）下午15:00

地点：新校区化学楼230会议室

主讲人简介

Dr. Chunyi Zhi got his PhD degree in physics frominstitute of physics, Chinese Academy of Sciences. After that, he started towork as a postdoctoral researcher in National Institute for Materials Science(NIMS) in Japan, followed by a research fellow in International Center forYoung Scientists in NIMS and a permanent position in NIMS as a seniorresearcher. He is currently an associate professor in Department of MaterialsScience & Engineering, City University of Hong Kong. Zhi’s research focuseson flexible/wearable energy storage devices and zinc-based batteries etc. Hehas published more than 250 papers with an other-citation of >14000 andh-index of 66. He has also been authorized more than 70 patents

报告摘要

Ourresearch focuses on development of flexible energy storage/conversion devices,including supercapacitors, batteries and metal air batteries. Here we introducean extremely safe and wearable solid-state zinc ion battery (ZIB) comprising anovel gelatin and PAM based hierarchical polymer electrolyte (HPE) and anα-MnO2 nanorod/carbon nanotube (CNT) cathode. Benefiting from the well-designedelectrolyte and electrodes, the flexible solid-state ZIB delivers a high arealenergy density and power density (6.18 mWh cm-2 and 148.2 mW cm-2,respectively), high specific capacity (306 mAh g-1) and excellentcycling stability (97% capacity retention after 1000 cycles at 2772 mA g-1).More importantly, the solid-state ZIB offers high wearability and extremesafety performance over conventional flexible LIBs, and performs very wellunder various severe conditions, such as being greatly cut, bent, hammered,punctured, sewed, washed in water or even put on fire. In addition, flexibleZIBs were integrated in series to power a commercial smart watch, a wearablepulse senor, and a smart insole, which is the first time that has been achievedto the best of our knowledge.

研究成果

1.EvaluatingFlexibility and Wearability of Flexible Energy Storage Devices, Joule 2019.

2.Aflexible rechargeable aqueous zinc manganese-dioxide battery working at -20 °C,EES 2019.

3.Super‐Stretchable Zinc–Air Batteries Based on an Alkaline‐Tolerant Dual‐Network Hydrogel Electrolyte, AEM 2019.

4.InitiatingA Mild Aqueous Electrolyte Co3O4/Zn Battery with 2.2 V-High Voltage and5000-Cycle Lifespan by a Co(III) Rich-electrode, EES, 2018.

5.Light-Permeable,Photoluminescent Microbatteries Embedded in The Color Filter of a Screen, EES,2018.

6.Anextremely safe and wearable solid-state zinc ion battery based on ahierarchical structured polymer electrolyte, EES, 2018.

编辑：王文鑫

审核：廖滟菁

责编：刘世宏