Abstract
LiMn2O4 is a promising candidate for a cathode material in lithium-ion batteries because of its ability to intercalate lithium ions reversibly through its three-dimensional manganese oxide network. One of the promising techniques for depositing LiMn2O4 thin-film cathodes is atomic layer deposition (ALD). Because of its unparalleled film thickness control and film conformality, ALD helps to fulfill the industry demands for smaller devices, nanostructured electrodes, and all-solid-state batteries. In this work, the intercalation mechanism of Li+ ions into an ALD-grown beta-MnO2 thin film was studied. Samples were prepared by pulsing (LiOBu)-Bu-t and H2O for different cycle numbers onto about 100 nm thick MnO2 films at 225 degrees C and characterized with X-ray absorption spectroscopy, X-ray diffraction, X-ray reflectivity, time-of-flight elastic recoil detection analysis, and residual stress measurements. It is proposed that for
Original language | English |
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Journal | Journal of Physical Chemistry C |
Volume | 123 |
Issue number | 25 |
Pages (from-to) | 15802-15814 |
Number of pages | 13 |
ISSN | 1932-7447 |
DOIs | |
Publication status | Published - 27 Jun 2019 |
MoE publication type | A1 Journal article-refereed |
Fields of Science
- CATHODE
- ELECTROCHEMICAL CHARACTERIZATION
- ELECTRONIC-STRUCTURE
- FINE-STRUCTURE
- INSERTION
- LOCAL-STRUCTURE
- MANGANESE OXIDE
- SPINEL LIMN2O4
- STRUCTURAL PHASE-TRANSITION
- X-RAY-ABSORPTION
- 114 Physical sciences
- 116 Chemical sciences