期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 44, 期 -, 页码 34-37出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2014.04.006
关键词
Fluorinated solvents; High voltage electrolyte; Lithium reservoir; 5-V LiNi0.5Mn1.5O4 cathode; Lithium-ion batteries
资金
- Advanced Battery Research (ABR) for Transportation, Vehicle Technologies Program
- Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy
- UChicago Argonne, LLC [DE-AC02-06CH11357]
A fluorinated electrolyte was galvanostatically charged and discharged for 100 cycles at an elevated temperature (55 degrees C) with a LiNi0.5Mn1.5O4 cathode coupled with a graphite anode in the presence of a lithium reservoir. The incorporation of the lithium reservoir was able to compensate for the loss of the active lithium from the LiNi0.5Mn1.5O4 cathode due to the electrolyte oxidative decomposition. Our experimental data demonstrate for the first time that lithium compensation is an efficient way to enhance the performance of high voltage LiNi0.5Mn1.5O4/graphite cell at a high temperature (55 degrees C). 2014 Elsevier B.V. All rights reserved.
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