Mechanism of capacity fade of MCMB/Li(1.1)[Ni(1/3)Mn(1/3)Co(1/3)](0.9)O(2) cell at elevated temperature and additives to improve its cycle life

Title
Mechanism of capacity fade of MCMB/Li(1.1)[Ni(1/3)Mn(1/3)Co(1/3)](0.9)O(2) cell at elevated temperature and additives to improve its cycle life
Other Titles
Li(1.1)[Ni(1
Author
선양국
Keywords
SEI
Issue Date
2011-11
Publisher
Elsevier B.V.
Citation
Journal of Materials Chemistry, NOV 2011, 21(44), P17754-17759
Abstract
The performance degradation of graphite/Li1.1[Ni1/3Mn1/3Co1/3]0.9O2 lithium-ion cells at elevated temperature was investigated. The electrochemical data suggest that the migration of dissolved transition metals from the cathode to the anode is the key contributor to the performance degradation. With the help of density function theory calculations, lithium difluoro[oxalato] borate was tested to be an effective electrolyte additive to mitigate the performance degradation of lithium-ion cells. The application of this novel electrolyte additive was found to significantly improve both the life and safety characteristics of graphite/Li1.1[Ni1/3Mn1/3Co1/3]0.9O2 lithium-ion cells.
URI
http://pubs.rsc.org.access.hanyang.ac.kr/en/content/articlelanding/2011/jm/c1jm11584g#!divAbstracthttp://hdl.handle.net/20.500.11754/57257
ISSN
0959-9428; 1364-5501
DOI
10.1039/c1jm11584g
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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