A low-temperature electrolyte for lithium-ion batteries |
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Authors: | Shiyou Li Xiaopeng Li Jinliang Liu Zhichao Shang Xiaoling Cui |
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Institution: | 1.College of Petrochemical Technology,Lanzhou University of Technology,Lanzhou,China |
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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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