XPS/EXAFS study of cycleability improved LiMn2O4 thin film cathodes prepared by solution deposition

Title
XPS/EXAFS study of cycleability improved LiMn2O4 thin film cathodes prepared by solution deposition
Authors
신동욱최지원최원국조용수윤석진
Keywords
Spinel; Cathode; Sn substitution; Solution deposition; Cycleability
Issue Date
2009-03
Publisher
Electrochemistry communications
Citation
VOL 11, NO 3, 695-698
Abstract
The influence of Sn substitution in LiMn2O4 thin films as a cathode has been studied via solution deposition to improve the electrochemical performance of thin film lithium batteries. LiSn0.025Mn1.95O4 thin films showed the most promising performance, i.e. a high capacity retention of 77% at 10 C after the 500th cycle, due to the increased average Mn valence state. The thin films of LiSnx/2Mn2 xO4 (xP0.10) showed significant precipitation of SnO2 and SnO after the cycling evaluation.
URI
http://pubs.kist.re.kr/handle/201004/41862
ISSN
1388-2481
Appears in Collections:
KIST Publication > Article
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