Non-aqueous electrolyte and lithium ion battery using the same
A non-aqueous electrolyte and electrolyte technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of poor high temperature performance of batteries, and achieve the effect of improving low temperature cycle performance and rate performance
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Embodiment 1
[0082] Electrolyte preparation: In an argon atmosphere glove box with a water content 6 Dissolved in the above non-aqueous solvents to form LiPF 6 Basic electrolyte with a concentration of 1mol / L. Then, add LiBF to the base electrolyte 4 and triphenylphosphonic acid cyclic anhydride, the mass fractions of the two in the electrolyte are 0.2% and 1%, respectively.
[0083] The preparation of the lithium-ion battery is the same as in Comparative Example 1, and will not be repeated here.
Embodiment 2
[0085] Electrolyte preparation: In an argon atmosphere glove box with a water content 6Dissolved in the above non-aqueous solvents to form LiPF 6 Basic electrolyte with a concentration of 1mol / L. Then, add LiBF to the base electrolyte 4 and tripropylphosphonic acid cyclic anhydride, the mass fractions of the two in the electrolyte are 0.2% and 1%, respectively.
[0086] The preparation of the lithium-ion battery is the same as in Comparative Example 1, and will not be repeated here.
Embodiment 3
[0088] Electrolyte preparation: In an argon atmosphere glove box with a water content 6 Dissolved in the above non-aqueous solvents to form LiPF 6 Basic electrolyte with a concentration of 1mol / L. Then, add LiBF to the base electrolyte 4 and triethylphosphonic acid cyclic anhydride, the mass fractions of the two in the electrolyte are 0.2% and 1%, respectively.
[0089] The preparation of the lithium-ion battery is the same as in Comparative Example 1, and will not be repeated here.
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