Analytical ABF-STEM imaging of Li ions in rechargeable batteries.
作者： Yuren Wen , Tongtong Shang , Lin Gu
关键词:
摘要: Rechargeable batteries are being intensively investigated in an attempt to solve the energy issues while meeting environmental demands. Even though Li-ion (LIB) with high and light weight have been commercialized within last 20 years, these devices currently require higher density, output power sustainability characteristics. The atomic behavior of Li ion that determines LIB's performance is hardly characterized by transmission electron microscopy (TEM) owing its weak electron-scattering power. In this sense, annular bright-field (ABF) scanning TEM (STEM), which contrast has a low scaling rate number, proven be robust technique for simultaneous imaging heavy elements. s-state model, channeling along column allows intensity focusing forward direction, successfully explained theory ABF contrast. Furthermore, detector angle range, defocus-thickness dependence accelerating voltage (among other parameters) were discussed optimized conditions. ABF-STEM shown powerful capabilities resolving structure chemistry electrodes (e.g. occupation diffusion, phase transformation interface reaction), thereby providing critical insights into physical properties, battery design guidance LIB. future directions characterization LIB materials also reviewed.
oup.com
sci-hub.se 参考文章(85)
P. Geuens, D. Van Dyck, The S‐State Model for Electron Channeling in High‐Resolution Electron Microscopy Advances in Imaging and Electron Physics. ,vol. 136, pp. 111- 226 ,(2005) , 10.1016/S1076-5670(04)36002-7
C. Wolverton, Alex Zunger, First-Principles Prediction of Vacancy Order-Disorder and Intercalation Battery Voltages in Li x CoO 2 Physical Review Letters. ,vol. 81, pp. 606- 609 ,(1998) , 10.1103/PHYSREVLETT.81.606
Yang Shao-Horn, Stéphane Levasseur, François Weill, Claude Delmas, None, Probing Lithium and Vacancy Ordering in O3 Layered LixCoO2 ( x ≈ 0.5 ) : An Electron Diffraction Study Journal of The Electrochemical Society. ,vol. 150, ,(2003) , 10.1149/1.1553787
D Carlier, Ismaël Saadoune, Michel Ménétrier, Claude Delmas, None, Lithium Electrochemical Deintercalation from O 2 LiCoO2 Structure and Physical Properties Journal of The Electrochemical Society. ,vol. 149, ,(2002) , 10.1149/1.1503075
Maximilian Haider, Stephan Uhlemann, Eugen Schwan, Harald Rose, Bernd Kabius, Knut Urban, Electron microscopy image enhanced Nature. ,vol. 392, pp. 768- 769 ,(1998) , 10.1038/33823
Naoaki Yabuuchi, Mitsue Takeuchi, Masanobu Nakayama, Hiromasa Shiiba, Masahiro Ogawa, Keisuke Nakayama, Toshiaki Ohta, Daisuke Endo, Tetsuya Ozaki, Tokuo Inamasu, Kei Sato, Shinichi Komaba, High-capacity electrode materials for rechargeable lithium batteries: Li3NbO4-based system with cation-disordered rocksalt structure Proceedings of the National Academy of Sciences of the United States of America. ,vol. 112, pp. 7650- 7655 ,(2015) , 10.1073/PNAS.1504901112
H. Liu, F. C. Strobridge, O. J. Borkiewicz, K. M. Wiaderek, K. W. Chapman, P. J. Chupas, C. P. Grey, Capturing metastable structures during high-rate cycling of LiFePO4 nanoparticle electrodes Science. ,vol. 344, pp. 1252817- 1252817 ,(2014) , 10.1126/SCIENCE.1252817
Rong Huang, Taro Hitosugi, Scott D Findlay, Craig AJ Fisher, Yumi H Ikuhara, Hiroki Moriwake, Hideki Oki, Yuichi Ikuhara, None, Real-time direct observation of Li in LiCoO2 cathode material Applied Physics Letters. ,vol. 98, pp. 051913- ,(2011) , 10.1063/1.3551538
Eiji Okunishi, Hidetaka Sawada, Yukihito Kondo, Experimental study of annular bright field (ABF) imaging using aberration-corrected scanning transmission electron microscopy (STEM) Micron. ,vol. 43, pp. 538- 544 ,(2012) , 10.1016/J.MICRON.2011.10.007
D. Van Dyck, M. Op de Beeck, A simple intuitive theory for electron diffraction Ultramicroscopy. ,vol. 64, pp. 99- 107 ,(1996) , 10.1016/0304-3991(96)00008-3