Abstract
Li2MnO3 holds great promise as a key component for lithium-manganese-rich oxides as high-capacity and high-energy-density cathode materials for lithium-ion batteries. However, its structural complexity remains an unresolved puzzle, hindering the further development of this class of cathode materials. In this work, the structure of Li2SnO3 was investigated as a model of Li2MnO3. Specifically, the structural evolution of materials during the solid-state synthesis of Li2SnO3 was studied using in situ high-energy X-ray diffraction. It was confirmed that Li2SnO3 with a C2/c structure was formed using the solid-state process. However, the severe intralayer intermixing between Li and Sn was found to lead to several weakening or vanishing reflection peaks.
| Original language | English |
|---|---|
| Pages (from-to) | 31559-31564 |
| Number of pages | 6 |
| Journal | RSC Advances |
| Volume | 6 |
| Issue number | 37 |
| DOIs | |
| State | Published - 2016 |
| Externally published | Yes |
Funding
Research was funded by the National Nature Science Foundation of China (No. 51302017), and the Science and Technology Commission of Beijing (No. Z121100006712002), U.S. Department of Energy (DOE), Vehicle Technologies Office. Support from Tien Duong and Peter Faguy of the U.S. DOE's Office of Vehicle Technologies Program, is gratefully acknowledged. Argonne National Laboratory operates for the US Department of Energy by U Chicago Argonne, LLC, under contract DE-AC02-06CH11357. Use of the Advanced Photon Source (APS) was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.