AlF3-coated LiCoO2 and Li[Ni1/3Co1/3Mn1/3]O-2 blend composite cathode for lithium ion batteries
- Authors
- Lee, Ki-Soo; Myung, Seung-Taek; KIM, DONG WON; Sun, Yang Kook
- Issue Date
- Aug-2011
- Publisher
- ELSEVIER
- Keywords
- AlF3 coating; Blend; Cathode; Battery; Lithium
- Citation
- JOURNAL OF POWER SOURCES, v.196, no.16, pp.6974 - 6977
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 196
- Number
- 16
- Start Page
- 6974
- End Page
- 6977
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/28097
- DOI
- 10.1016/j.jpowsour.2010.11.014
- ISSN
- 0378-7753
- Abstract
- Surface modifications of electrode materials can improve the electrochemical and thermal properties of cathodes for use in lithium batteries. In this study, AlF3-coated LiCoO2 and AlF3-coated Li[Ni1/3Co1/3Mn1/3]O-2 cathode materials are blended, as both have the same crystal structure and exhibit similar electrochemical properties. The composite electrodes exhibit high discharge capacities of 180-188 mAhg(-1) in a voltage range of 3.0-4.5 V at room temperature. The capacity retention of the composite electrode is greater than 95% of the initial capacity after 50 cycles. The thermal stability of these composite electrodes is greatly improved because of the superior thermal stability of AlF3-coated Li[Ni1/3Co1/3Mn1/3]O-2. The blended AlF3-coated LiCoO2 and AlF3-coated Li[Ni1/3Co1/3Mn1/3]O-2 electrode shows two exothermic peaks, one at 227 degrees C from AlF3-coated LiCoO2 and another at 277 degrees C from AlF3-coated Li[Ni1/3Co1/3Mn1/3]O-2. accompanied by significantly reduced exothermic heat generation.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 에너지공학과 > 1. Journal Articles
- 서울 공과대학 > 서울 화학공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/28097)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.