Surface analytical approaches to reliably characterize lithium ion battery electrodes.
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| Title: | Surface analytical approaches to reliably characterize lithium ion battery electrodes. |
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| Authors: | Azmi, R.1 raheleh.azmi@kit.edu, Trouillet, V.1,2, Strafela, M.1, Ulrich, S.1, Ehrenberg, H.1, Bruns, M.1,2 |
| Source: | Surface & Interface Analysis: SIA. Jan2018, Vol. 50 Issue 1, p43-51. 9p. |
| Subjects: | Electrodes, Radio frequency, Lithium-ion batteries, X-ray photoelectron spectroscopy, Storage batteries |
| Abstract: | Active Li-ion battery materials are typically characterized using X-ray photoelectron spectroscopy when regarding chemical state elucidation. This work presents a multiplet-splitting approach comprising in minimum 3 third-row transition metals, namely, Mn, Co, and Ni, to improve the results in comparison to peak barycenter or single symmetric Voigt profile approaches. The achieved X-ray photoelectron spectroscopy 2p templates in particular address the complex peak structures consisting of significant photoelectron multiplet splitting, shake-up and plasmon loss features, and additional Auger and photoelectron overlaps, inevitable also for a reliable quantification. To separate from topography effects and contributions of the electrode's binder and conductive carbon in powder electrodes, the developed procedure in a first attempt was successfully transferred to novel radio frequency magnetron sputtered Li-Ni-Co-Mn-O thin films, designed for all-solid-state Li-ion batteries. In all cases, special care was taken with respect to air sensitivity, contamination during sample handling, and probable method induced sample decomposition. [ABSTRACT FROM AUTHOR] |
| Copyright of Surface & Interface Analysis: SIA is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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