CONTACT

E-mail:  cheqj@nus.edu.sg

EDUCATION

Ph.D. Inorg. Chem., Peking University, 2010

B. Chem., Central China Normal University, 2005

RESEARCH INTEREST

Li-air battery

Lithium–air (Li–air) batteries have recently received much attention due to their extremely high theoretical energy densities. The significantly larger theoretical energy density of the lithium–oxygen batteries is due to the use of a pure lithium metal anode and the fact that the cathode oxidant, oxygen, is stored externally since it can be readily obtained from the surrounding air. If successfully developed, this battery could provide an energy source for electric vehicles rivaling that of gasoline in terms of usable energy density. However, before Li–air batteries can be realized as high-performance, commercially viable products there are still numerous scientific and technical challenges that must be overcome, from designing the cathode structure, to optimizing the electrolyte compositions and elucidating the complex chemical reactions that occur during charge and discharge.

Figure 1. The mechanism of the Li-air battery.