Lithiation Mechanism Change Driven by Thermally Induced Grain Fining and Its Impact on the Performance of LiMn(2)O(4)in Lithium-Ion Batteries
- Authors
- Lee, Geun Jun; Abbas, Muhammad A.; Lee, Moo Dong; Lee, Jeongmin; Lee, Junghyun; Bang, Jin Ho
- Issue Date
- Jul-2020
- Publisher
- Wiley - V C H Verlag GmbbH & Co.
- Keywords
- Li diffusion; Li-ion batteries; LiMn2O4; LiMn2O4(LMO); solid state reaction kinetics
- Citation
- Small, v.16, no.29, pp.1 - 8
- Indexed
- SCIE
SCOPUS
- Journal Title
- Small
- Volume
- 16
- Number
- 29
- Start Page
- 1
- End Page
- 8
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/1012
- DOI
- 10.1002/smll.202002292
- ISSN
- 1613-6810
- Abstract
- The nature of precursors employed in the synthesis of lithium-ion battery cathode materials is a crucial performance-dictating factor. Therefore, it is of great importance to establish a way to manipulate the precursor and seek a comprehensive understanding of its influence on the electrochemical behavior of a targeted electrode material. A thermal route is herein demonstrated for the synthesis of lithium-excess LiMn2O4(LMO) by exploiting an intriguing thermal phenomenon, thermally induced grain fining, and sheds light on how it affects the mechanism and kinetics of lithiation, and, furthermore, the electrochemical behavior of LMO. Detailed insights into the lithiation mechanism and kinetics reveal that the use of a finely grained, porous Mn3O4, which possesses an open crystal structure, is a key to the success of incorporating excess Li. In addition, this in-depth electrochemical investigation verifies a very recent theoretical prediction of faster Li diffusion kinetics enabled by excess Li.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/1012)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.