25-27 November 2015
National Centre for Synchrotron Science
Australia/Melbourne timezone

Phase evolution and structural transformation of electrodes for Li- and Na-ion batteries upon cycling

27 Nov 2015, 13:30
National Centre for Synchrotron Science

National Centre for Synchrotron Science

Australian Synchrotron 800 Blackburn Road Clayton VIC 3168
Board: EM-12
Poster Energy Materials Poster Session 2


Prof. Zaiping Guo (University of Wollongong)


Li-ion batteries (LIBs) are the primary choice of power source for portable electronic devices, including mobile phones, laptops, as well as electric vehicles. The working principle of a LIB is to store electric energy in chemical form by using charge-balancing Li ions that reversibly insert into the electrodes. On the other hand, Na-ion batteries (NIBs) are also considered one of the best alternatives to LIB technology, due to their similar electrochemistry, potentially non-toxicity, and the greater elemental abundance of sodium leading to low-cost. In both LIB and NIB, the structure and chemistry of the electrodes are closely related and determine its functional mechanism. A mechanistic understanding of the charge-carrier insertion/extraction process in electrode materials is necessary to understand the electrochemical properties that underpin battery function. In this presentation, we showcase examples of operando studies of both LIB and SIB using synchrotron X-ray powder diffraction (PD) and X-ray absorption (XAS) data, collected on PD and XAS beamlines, with sufficient information to extract detail of the insertion/extraction mechanism and to give rational improvements for the developments .
Keywords Li-ion battery; operando X-ray diffraction; Na-ion battery

Primary author

Dr Wei Kong Pang (University of Wollongong)


Bernt Johannessen (Australian Synchrotron) Dr Justin Kimpton (Australian Synchrotron) Neeraj Sharma (UNSW) Mr Sujith Kalluri (University of Wollongong) Vanessa Peterson (ANSTO) Prof. Zaiping Guo (University of Wollongong)

Presentation Materials

There are no materials yet.
Your browser is out of date!

Update your browser to view this website correctly. Update my browser now