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Soft X-ray Absorption Spectroscopic Investigation of Li(Ni_0.8Co_0.1Mn_0.1)O₂ Cathode Materials.

ABSTRACT: Herein, we report the soft X-ray absorption spectroscopic investigation for Li(Ni_0.8Co_0.1Mn_0.1)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 e_g 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 t_2g and e_g states.

SUBMITTER: Singh JP

PROVIDER: S-EPMC7221520 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Soft X-ray Absorption Spectroscopic Investigation of Li(Ni0.8Co0.1Mn0.1)O2 Cathode Materials.

Singh Jitendra Pal JP Park Jae Yeon JY Chae Keun Hwa KH Ahn Docheon D Lee Sangsul S

Nanomaterials (Basel, Switzerland) 20200415 4

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 ...[more]

PMID: 32326645

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