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- Title
Soft X-ray Absorption Spectroscopic Investigation of Li(Ni0.8Co0.1Mn0.1)O2 Cathode Materials.
- Authors
Singh, Jitendra Pal; Park, Jae Yeon; Chae, Keun Hwa; Ahn, Docheon; Lee, Sangsul
- Abstract
Herein, we report the soft X-ray absorption spectroscopic investigation for Li(Ni0.8Co0.1Mn0.1)O2 cathode material during charging and discharging. These measurements were carried out at the Mn L-, Co L-, and Ni L-edges during various stages of charging and discharging. Both the Mn and Co L-edge spectroscopic measurements reflect the invariance in the oxidation states of Mn and Co ions. The Ni L-edge measurements show the modification of the oxidation state of Ni ions during the charging and discharging process. These studies show that eg states are affected dominantly in the case of Ni ions during the charging and discharging process. The O K-edge measurements reflect modulation of metal–oxygen hybridization as envisaged from the area-ratio variation of spectral features corresponding to t2g and eg states.
- Subjects
SOFT X rays; CATHODES; OXIDATION states; MATERIALS; HYBRID materials
- Publication
Nanomaterials (2079-4991), 2020, Vol 10, Issue 4, p759
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano10040759