报告题目：Solving key challenges in battery research using in-situ synchrotron and neutron techniques

报告内容简介：X-rays and neutrons are excellent probes for studying the atomic structure changes and phase evolution in battery materials during charge and discharge. Synchrotron X-ray powder diffraction (SXPD), with high angular resolution and beam intensity, allows fast scattering and diffraction data collection to examine crystalline structure changes that occur on short time-scales. Neutron powder diffraction (NPD) provides complementary information where it is sensitive to different structural details of the charge/discharge mechanisms. More recently X-ray absorption spectroscopy (XAS) has been used to identify the oxidation states of transition metal ions present in new cathode compositions at different status of battery cycles. Using in-house designed battery cells, electrodes or components can be subjected to conditions designed to mimic their real operating conditions. It is preferable to investigate battery materials during operation to identify any critical intermediate stages during charge/discharge. Examples and combinations of SXPD, XAS, NPD measurements which have been used to investigate LIBs and SIBs are described and reviewed in this contribution. Novel in-situ cells combined with synchrotron and neutron techniques have revealed structural details which correlate with the electrochemical performance of individual battery cell compositions and have improved our understanding of electrochemical performance across the field.

报告人姓名：Dr Qinfen Gu

报告人简介：Dr Qinfen Gu is a senior beamline scientist at Australian Synchrotron, and an adjunct senior researcher fellow in school of chemistry, University of Melbourne. He was awarded a PhD from department of materials at ETH Zurich, Switzerland. In addition to beamline development and instrument design, Dr Gu focuses his research in the areas of energy storage materials, metal-organic frameworks and zeolites, novel material under extreme conditions. He has co-authored more than 100 referred journal publications and has received several Australian research council (ARC) grants.

报告人单位：Australian Synchrotron

报告时间：2016-12-29 14:30

报告地点：延长校区日新楼401室