Journal
IONICS
Volume 21, Issue 4, Pages 901-907Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-014-1275-0
Keywords
Lithium-ion batteries; Low temperature; Electrolyte; Mixture salt; Electrochemical performance
Funding
- Science and Technology Planning Project of Gansu Province [1310RJZA043, 1308RJZA259]
- Natural Science Foundation of China [21406100]
- Science and Technology Support Project of Gansu Province [144GKCB029]
- Branchy Tamarisk Development Program for Young Teachers of Lanzhou University of Technology [Q201105]
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In this paper, the electrochemical performance of a new low-temperature electrolyte, 0.9 mol L-1 lithium oxalyldifluoroborate (LiODFB)/LiBF4 (5.365:1, by mass) mixed salts in the ethylene carbonate (EC)/dimethyl sulfite (DMS)/ethyl methyl carbonate (EMC) mixed solvent (1:1:3, by volume, the same below), is studied to seek the promising candidate for advanced low-temperature lithium-ion batteries (LIBs). The results show that LIBs using this new electrolyte can be operable well at temperature below -20 A degrees C. This is useful to expand the application range of LIBs, especially at specific low-temperature environments, such as military and aerospace applications.
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