| Download | - View accepted manuscript: Local structure and first cycle redox mechanism of layered Li₁.₂Cr₀.₄Mn₀.₄O₂ cathode material (PDF, 823 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1149/1.1456535 |
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| Author | Search for: Ammundsen, Brett; Search for: Paulsen, Jens; Search for: Davidson, Isobel1; Search for: Liu, Ru-Shi; Search for: Shen, Chih-Hung; Search for: Chen, Jin-Ming; Search for: Jang, Ling-Yun; Search for: Lee, Jyh-Fu |
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| Affiliation | - National Research Council Canada. NRC Institute for Chemical Process and Environmental Technology
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| Format | Text, Article |
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| Subject | reduction (chemical); oxidation; electrochemical electrodes; lithium compounds; X-ray diffraction; EXAFS; secondary cells |
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| Abstract | Electrochemical, X-ray diffraction, and K and L edge X-ray absorption data are reported for the layered cathode material Li₁.₂Mn₀.₄Cr₀.₄O₂. The structural data show that this material can be understood as a solid solution of the layered phases Li₂MnO₃ and LiCrO₂, comprising tretravalent Mn and trivalent Cr, with approximately 0.2 lithium incorporated in the transition metal layers. According to the analysis of the K edge extended X-ray absorption fine structure, lithium ions in the transition metal layers are clustered around Mn ions. L edge X-ray absorption near edge spectra show that in the first charge-discharge cycle chromium is the electrochemically active species, cycling between Cr³⁺ and Cr⁶⁺ Manganese remains as Mn⁴⁺ throughout charge and discharge. © 2002 The Electrochemical Society. All rights reserved. |
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| Publication date | 2002 |
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| Terms of use | - You may reproduce (print, make photocopies, or download) the accepted manuscript without permission for non-commercial purposes (research, education, and private study), on the condition that you provide proper attribution of the source in all copies.
- Vous pouvez reproduire (imprimer, faire des photocopies ou télécharger) le manuscrit accepté sans autorisation à des fins non commerciales (recherche, éducation et études privées), à condition de fournir la source appropriée dans toutes les copies.
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| Access condition | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 44394 |
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| NPARC number | 8925860 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 5af78c3b-617f-464e-b034-46904ddfa948 |
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| Record created | 2009-04-23 |
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| Record modified | 2025-03-25 |
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