Synthesis and characterization of Mg2TiO4-coated LiCoO2 as a cathode material for lithium ion batteries
- Authors
- Shim, Jae-Hyun; Cho, Nam-Hee; Lee, Sanghun
- Issue Date
- 20-Jul-2017
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Lithium ion battery; Lithium cobalt oxide; Mg doping; Mg2TiO4 coating layer
- Citation
- ELECTROCHIMICA ACTA, v.243, pp.162 - 169
- Journal Title
- ELECTROCHIMICA ACTA
- Volume
- 243
- Start Page
- 162
- End Page
- 169
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/5912
- DOI
- 10.1016/j.electacta.2017.05.073
- ISSN
- 0013-4686
- Abstract
- A series of Mg-doped LiCoO2 cathode materials are prepared by a solid-state reaction. with a titanate coating for use in lithium ion batteries. The detailed structures of the materials are thoroughly characterized by experimental techniques including scanning electron microscopy, transmission electron microscopy, X-ray diffraction, electron energy loss spectroscopy, and electron probe microanalysis. The coating layer, which is characterized as a spinel phase of Mg2TiO4, plays the important role of a protective layer to prevent detrimental side reactions. Hence, the coated materials exhibit much improved cycling ability, excellent C-rate capability, and high upper cut-off voltages owing to the Mg doping. Mg ions in the coating layer are relocated from the bulk region of the active material and have a beneficial effect that enhances battery performance. This work provides an informative guide for the development of novel high-voltage cathode materials. (C) 2017 Elsevier Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 바이오나노대학 > 나노화학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/5912)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.