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Pillar Effect in Ni‐rich Cathode of Li‐Ion Battery by NH 3 Thermal Treatment

Title
Pillar Effect in Ni‐rich Cathode of Li‐Ion Battery by NH 3 Thermal Treatment
Author
무하마드 아와이스
Keywords
LiNixMnyCozO2; Ni-rich cathode; NH3treatment; Surface reduction; Pillar effect
Issue Date
2021-04
Publisher
Wiley-Blackwell
Citation
Bulletin of the Korean Chemical Society, v. 42, NO 6, Page. 934-937
Abstract
Ni-rich layered LiNixMnyCozO2(NCM) materials are used in lithium-ion batteries because of their highcathode capacity. The high nickel content, however, usually leads to severe capacity fading and structuralcollapse after repeated charging and discharging. To mitigate these problems, we heat-treated NCM in anNH3atmosphere to form Ni2+pillars between Li layers. The Ni2+pillars improve the cycling stability ofNCM by alleviating degradation of the Li layer. This is a simple and effective method for improving thestability of Ni-rich NCM.
URI
https://onlinelibrary.wiley.com/doi/10.1002/bkcs.12282https://repository.hanyang.ac.kr/handle/20.500.11754/171745
ISSN
1229-5949; 0253-2964
DOI
10.1002/bkcs.12282
Appears in Collections:
RESEARCH INSTITUTE[E](부설연구소) > INSTITUTE OF NANO SENSOR TECHNOLOGY(나노센서연구소) > Articles
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