RPG Student List

 

Yang LI

Doctor Candidate in Chemical and Biomolecular Engineering

Supervisor: Prof. Ka Ming NG

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Research Topic

Ionic liquid-Nanoparticle Hybrid Electrolytes for Lithium Batteries

Abstract

Among rechargeable/secondary battery technologies, lithium metal batteries containing lithium (Li) metal as the anode provide one of the highest energy densities for electrical energy storage. However, the stability of most current electrolytes with the Li metal anode is far from satisfactory. In view of battery safety, in this project, ionic liquid electrolytes will be studied with respect to their attractive properties, including ultralow vapor pressure, high thermal stability, high ionic conductivity and wide redox stability. To further improve the battery performance, ionic liquid-nanoparticle hybrid and single-ion conducting polymer electrolytes will be synthesized and characterized. Also, electrochemical properties were test and studied. Inspired by the idea, a new strategy was proposed to develop ionic liquid-based solid polymer electrolytes. The structure of the synthesized membrane, thermal stability and mechanical property were characterized. Similarly, electrochemical performance was investigated. Finally, strategies enhancing the low-temperature battery performance of electrolyte will be proposed.

Journal Publication


Dou, Qianqian; Wong, Ka Wai; Li, Yang; Ng, Ka Ming, "Novel Nanosheets of Ferrite Nanoparticle Arrays in Carbon Matrix From Single Source Precursors: an Anode Material for Lithium-ion Batteries", (2018)
 
Li, Yang; Wong, Ka Wai; Dou, Qianqian; Zhang, Wei; Wang, Lixiang; Ng, Ka Ming, "A Highly Elastic and Flexible Solid-state Polymer Electrolyte Based on Ionic Liquid-decorated PMMA Nanoparticles for Lithium Batteries", (2017)
 
Li, Yang; Wong, Ka Wai; Dou, Qianqian; Ng, Ka Ming, "A Single-Ion Conducting and Shear-Thinning Polymer Electrolyte Based on Ionic Liquid-Decorated PMMA Nanoparticles for Lithium-Metal Batteries", (2016)
 
Li, Yang; Wong, Kawai; Ng, Kaming, "Ionic liquid decorated mesoporous silica nanoparticles: A new high-performance hybrid electrolyte for lithium batteries", (2016)