Tomographical analysis of electrochemical lithiation and delithiation of LiNi0.6Co0.2Mn0.2O2 cathodes in all-solid-state batteries
| Autor: | Hun-Gi Jung, Byoung-In Sang, Ji-Won Son, Sungjun Choi, Hyoungchul Kim, Wo Dum Jung, Tae Hyun Kim, Bin Na Yun, Kyung Yoon Chung |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metals and Alloys 02 engineering and technology Atom probe 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences Cathode law.invention Chemical engineering Mechanics of Materials law 0103 physical sciences All solid state General Materials Science Composite cathode 0210 nano-technology Excitation |
| Zdroj: | Scripta Materialia. 165:10-14 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2019.02.005 |
| Popis: | We demonstrated the use of three-dimensional (3D) atom-probe tomography (APT) for analyzing the electrochemical lithiation/delithiation in the composite cathodes of all-solid-state batteries (ASSBs). 3D APT provides direct determination of the Li-ion contents, having difficult by X-ray excitation. Compared with various cathodes, they showed a significant variation in the Li-ion concentration during lithiation/delithiation because of the poor solid-to-solid interfaces, which is an inherent problem in ASSBs. In addition, the loss of transition-metal content was quantitatively verified. We have confirmed that our APT can be effectively applied to ASSB systems and it would be provide a deeper understanding of electrochemistry in ASSBs. |
| Databáze: | OpenAIRE |
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