Selective doping of Li-rich layered oxide cathode materials for high-stability rechargeable Li-ion batteries
- Authors
- Han, Dongwook; Park, Kwangjin; Park, Jun-Ho; Yun, Dong-Jin; Son, You-Hwan
- Issue Date
- 25-Dec-2018
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Lithium-rich layered oxide; Vanadium ion; Coprecipitation; Selective doping site; Rechargeable lithium-ion batteries
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.68, pp.180 - 186
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 68
- Start Page
- 180
- End Page
- 186
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/2965
- DOI
- 10.1016/j.jiec.2018.07.044
- ISSN
- 1226-086X
- Abstract
- We report the discovery of Li-rich Li1+x[(Ni0.225Co0.15Mn0.625)(1-y)V-y]O-2 as a cathode material for rechargeable lithium-ion batteries in which a small amount of tetravalent vanadium (V4+) is selectively and completely incorporated into the manganese sites in the lattice structure. The unwanted oxidation of vanadium to form a V2O5-like secondary phase during high-temperature crystallization is prevented by uniformly dispersing the vanadium ions in coprecipitated [(Ni0.225Co0.15Mn0.625)(1-y)V-y](OH)(2) particles. Upon doping with V4+ ions, the initial discharge capacity (>275 mA h g(-1)), capacity retention, and voltage decay characteristics of the Li-rich layered oxides are improved significantly in comparison with those of the conventional undoped counterpart. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 공과대학 > 기계공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/2965)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.