Abstract
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 °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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Acknowledgments
This work was supported by the Science and Technology Planning Project of Gansu Province (No. 1310RJZA043 and 1308RJZA259), the Natural Science Foundation of China (No. 21406100), the Science and Technology Support Project of Gansu Province (No. 144GKCB029), and the Branchy Tamarisk Development Program for Young Teachers of Lanzhou University of Technology (No. Q201105).
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Li, S., Li, X., Liu, J. et al. A low-temperature electrolyte for lithium-ion batteries. Ionics 21, 901–907 (2015). https://doi.org/10.1007/s11581-014-1275-0
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DOI: https://doi.org/10.1007/s11581-014-1275-0