Day 2 :
Keynote Forum
Lixin Xue
Ningbo Institute of Industrial Technologies (CAS), China
Keynote: Development and applications of lower cost high performance ionic conducting polymers
Time : 09:00-09:25
Biography:
Professor Lixin Xue, Chief Scientist of Ningbo Institute of Industrial Technologies, Chinese Academy of Sciences (NIMTE, CAS), has published over 80 scientific papers and 150 patents including 33 PCT Patents. His research interest is focused on the areas of fabricating functional polymer membranes and exploring their applications in the fields of green energy generation and storage, energy conservation and environment protection. Dr. Xue has served as reviewers for various international Journals including Journal of Materials Chemistry, Journal of Membrane Science, Desalination and Separation and Purification Technology. He is also a member of the “Thousand Talent Program†of Chinese Government.
Abstract:
High performance ionic conducting polymers are widely used in the energy conversion and storage devices, desalination processes and other areas. Commercially available per fluorinated polymer based ionomers bearing perfluroalkylsulfonic acid groups such as Nafion® polymer have shown great electrochemical stability and good ionic conductivity. However, its relatively high cost and low solvent barrier property have limited its applications in many areas. None fluorinated ionomers such as sulfonated polysulfone, sulfonated polyimide and others have been developed as lower cost alternatives, but they lack the electrochemical stability and ionic conductivity to support long term energy related applications. In this talk, we will discuss our strategy in creating lower cost high performance ionic conducting polymers with aromatic backbones bearing fluorinated side chains connecting to fluorinated alkyl sulfonimide groups. Due to the strong electronic withdrawing effects from the fluoroalkylsulfonyl groups, the negative charged on the nitrogen of sulfonimide anion could be widely delocalized and stabilized, resulting in the high mobility of the counter cations in the system. The materials showed improved solvent barrier properties because of its tighter ionic conducting channels. After summarizing our work in the syntheses of the materials, we will discuss recent progress in developing potential applications in rechargeable lithium ion battery, all vanadium redox flow battery, low energy cost electro-dialysis device, and total heat exchange energy recovery ventilation system.
Keynote Forum
Yutaka Ohno
Nagoya University, Japan
Keynote: Carbon nanotube thin films for flexible and formable electronics
Time : 09:25-09:50
Biography:
Yutaka Ohno is Professor of EcoTopia Science Institute, Nagoya University, Japan. He received the Ph.D. degrees from Nagoya University in 2000. He became an assistant professor in 2000 and an associate professor in 2008 of Nagoya University. He was also Research Fellow of JSPS from 1999 to 2000, Research Scientist of JST from 2004 to 2007, and Visiting Professor of Aalto University, Finland from 2012 to 2013. He is also Visiting Professor of Kyoto University in 2015. He published 120 papers in major journals and talked more than 50 invited talks in international conferences.
Abstract:
Flexible and stretchable electronics are attracting much attention because of the variety of potential applications from flexible e-papers though wearable healthcare devices. Among various kinds of electronic materials, carbon nanotube thin films have advantages in flexibility, stretchability, and performance because of the excellent electronic and mechanical properties. Three-dimensional formability is also unique property of carbon nanotube thin film devices, leading to new form of electron devices. Low cost manufacturing is also possible with printing techniques due to the good processability of carbon nanotube films. In the presentation, I will talk about the recent works on flexible and stretchable devices based on carbon nanotube thin films for realizing wearable healthcare electronics, including high-mobility thin-film transistors, integrated circuits and biosensors fabricated on plastic films. The simple fabrication processes based on micro-patterning technique of CNT films and high-throughput printing techniques will also be presented.