Chenjuan Liu

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One of the major challenges in developing high-performance Li-O2 batteries is to understand the Li2 O2 formation and decomposition during battery cycling. In this study, this issue was investigated by synchrotron radiation powder X-ray diffraction. The evolution of Li2 O2 morphology and structure was observed under actual electrochemical conditions of(More)
To provide energy densities higher than those of conventional Li-ion batteries, a Li–O2 battery requires a cathode with high surface area to host large amounts of discharge product Li2O2. Therefore, reversible formation of discharge products needs to be investigated in Li–O2 cells containing high surface area cathodes. In this study, a binder-free oxygen(More)
The chemical phenomena occurring at the electrode-electrolyte interfaces profoundly determine the cycle behavior of a lithium ion battery. In this work, we report that silicon-based anodes can attain enhanced levels of capacity retention, rate performance and lifespan when a versatile protective layer of, F-doped anatase (TiO2 xFx), is applied towards(More)
Liu, C. 2017. Exploration of Non-Aqueous Metal-O2 Batteries via In Operando Xray Diffraction. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1572. 71 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0094-8. Non-aqueous metal-air (Li-O2 and Na-O2) batteries have been emerging as one of the most(More)
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