Journal article
Monitoring the formation of nickel-poor and nickel-rich oxide cathode materials for lithium-ion batteries with synchrotron radiation
- Abstract:
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The syntheses of Ni-poor (NCM111, LiNi1/3Co1/3Mn1/3O2) and Ni-rich (NCM811 LiNi0.8Co0.1Mn0.1O2) lithium transition-metal oxides (space group R3̅m) from hydroxide precursors (Ni1/3Co1/3Mn1/3(OH)2, Ni0.8Co0.1Mn0.1(OH)2) are investigated using in situ synchrotron powder diffraction and near-edge X-ray absorption fine structure spectroscopy. The development of the layered structure of these two cathode materials proceeds via two utterly different reaction mechanisms. While the synthesis of NCM811 involves a rock salt-type intermediate phase, NCM111 reveals a layered structure throughout the entire synthesis. Moreover, the necessity and the impact of a preannealing step and a high-temperature holding step are discussed.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Version of record, pdf, 5.6MB, Terms of use)
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- Publisher copy:
- 10.1021/acs.chemmater.2c02639
Authors
- Publisher:
- American Chemical Society
- Journal:
- Chemistry of Materials More from this journal
- Volume:
- 35
- Issue:
- 4
- Pages:
- 1514-1526
- Publication date:
- 2023-01-31
- Acceptance date:
- 2023-01-03
- DOI:
- EISSN:
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1520-5002
- ISSN:
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0897-4756
- Pmid:
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36873624
- Language:
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English
- Keywords:
- Pubs id:
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1328404
- Local pid:
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pubs:1328404
- Deposit date:
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2023-04-01
Terms of use
- Copyright holder:
- Ying et al.
- Copyright date:
- 2023
- Rights statement:
- Copyright © 2023 The Authors. Published by American Chemical Society. This is an open access article published under CC BY 4.0.
- Licence:
- CC Attribution (CC BY)
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