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Kyung-Wan Nam, Seong-Min Bak, Enyuan Hu, Xiqian Yu, Youngning Zhou, Xiaojian Wang, Lijun Wu, Yimei Zhu, Kyung-Yoon Chung and Xiao-Qing Yang Combining In Situ Synchrotron X-Ray Diffraction and Absorption Techniques with Transmission Electron Microscopy to Study the Origin of Thermal Instability in Overcharged Cathode Materials for Lithium-Ion Batteries Advanced Functional Materials 23

Article first published online: 19 JUN 2012 | DOI: 10.1002/adfm.201200693

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The structural origin of the thermal instability of cathode materials, which is a critical safety issue for lithium-ion batteries, is studied systematically using a combination of various in situ synchrotron X-ray techniques and transmission electron microscopy. The in-depth understanding of the thermal decomposition behavior of overcharged cathode materials provides valuable guidance for developing new cathode materials with improved safety characteristics.

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