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250821s2025 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202505724
|2 doi
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|a pubmed25n1561.xml
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|a (DE-627)NLM391489070
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|a (NLM)40459515
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Zhang, Zhenjie
|e verfasserin
|4 aut
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|a Breaking the Vicious Spiral to Suppress Oxygen Loss in Li-Rich Oxide Cathode Materials
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 21.08.2025
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2025 Wiley‐VCH GmbH.
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|a The irreversible oxygen loss (O-loss) hinders the application of oxygen redox (O-redox) cathode material in high-energy-density Li/Na-ion batteries. Although O-loss is commonly associated with O2 release, the underlying mechanism remains unclear, which is not a simple surface problem. Herein, the O-loss/redox behaviors of the layered Li2MnO3 and spinel Li4Mn5O12 are comparatively investigated through experiments and density functional theory (DFT) calculations. It shows that the vicious spiral between O─O dimerization and Mn migration drive the void growth, chain-like structural collapse, and O2 release in Li2MnO3. In contrast, the stable spinel framework and inert O in O-LiMn3 coordination of Li4Mn5O12 break this spiral and trap O2 within the bulk, ensuring a reversible O-redox. By atomically compositing Li4Mn5O12 with LiNi0.5Mn1.5O4, a novel Co-free Li-rich spinel oxide (LRSO) with high energy density (>1000 Wh kg-1) is produced. These findings clarify the correlation between structural rearrangement and O-redox and contribute to the design of advanced O-redox cathode materials
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|a Journal Article
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|a Li/Na‐ion batteries
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|a O─O dimerization
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|a cation migration
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|a oxygen redox
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|a structural rearrangement
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|a Li, Yixin
|e verfasserin
|4 aut
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|a Shen, Xi
|e verfasserin
|4 aut
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|a Yang, Lu
|e verfasserin
|4 aut
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|a Zhang, Chu
|e verfasserin
|4 aut
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|a Liu, Yuan
|e verfasserin
|4 aut
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|a Wang, Bowen
|e verfasserin
|4 aut
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|a Kuo, Chang-Yang
|e verfasserin
|4 aut
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|a Haw, Shu-Chih
|e verfasserin
|4 aut
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|a Chen, Chien-Te
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|4 aut
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|a Pao, Chi-Wen
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|4 aut
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|a Huang, Hsiao-Yu
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|4 aut
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|a Huang, Di-Jing
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|4 aut
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|a Ju, Jiangwei
|e verfasserin
|4 aut
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|a Ma, Jun
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|4 aut
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|a Hu, Zhiwei
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|4 aut
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|a Gao, Yurui
|e verfasserin
|4 aut
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|a Wang, Xuefeng
|e verfasserin
|4 aut
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|a Yu, Richeng
|e verfasserin
|4 aut
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|a Wang, Zhaoxiang
|e verfasserin
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|a Chen, Liquan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 37(2025), 33 vom: 25. Aug., Seite e2505724
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:37
|g year:2025
|g number:33
|g day:25
|g month:08
|g pages:e2505724
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|u http://dx.doi.org/10.1002/adma.202505724
|3 Volltext
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