[Composite Series 12]Nanostructured Materials for Energy Storages

Date:2019/4/22 Visits: 923

Professor Limin Zhou
Department of Mechanical Engineering
The Hong Kong Polytechnic University

Time：15:30-16:30,22 April, 2019
Address：Room 206,InCSI, Yuquan Campus
Invited by：Professor Hua-xin Peng 

 

Abstract: Developing novel electrode materials with high energy density and long durability for lithium ion batteries (LIBs) is a challenge task for meeting the requirements imposed on the application of LIBs in electric vehicles. Recently, we have successfully prepared amorphous carbon nanofibers and carbon nanotubes decorated with hollow graphitic carbon nanospheres by electrospinning technique. A hollow-tunnel structure in electrospun carbon/Ni nanofibres was also produced by diffusing Ni nanoparticles from the graphitic carbon spheres into amorphous carbon nanofibres, which turns amorphous carbon into graphitic carbon. The resultant materials were further treated by chemical activation and acid treatment to develop hollow-tunneled graphitic carbon nanofibers (HTGCNs). In a typical application, we demonstrated that the prepared HTGCNs are excellent anode materials for LIBs, displaying a super high reversible specific capacity of over ~1560 mAh g-1 and a remarkable volumetric capacity of ~1.8 Ah cm-3 at a current density of 0.1 A g-1 with outstanding rate capability and good cycling stability.

Profile：
Prof Limin Zhou received his BEng and MEng in Solids Mechanics from Harbin Engineering University in 1982 and 1988 respectively, and was awarded an Australian Research Fellowship in 1996 after receiving his PhD from The University of Sydney in 1994. He then joined the Department of Mechanical Engineering of The Hong Kong Polytechnic University (HKPolyU) as an Assistant Professor in 1996 and became a Professor from 2005. His major research interests include nanomaterials and nanotechnology for energy applications, manufacturing techniques and processing models for advanced polymer composites, functional composites for aircrafts and structural health monitoring technology.

InCSI Special Composites Seminar (No.12)  Nanocomposites Series 2