Flame-retardant organic electrolyte for supercapacitor, preparation method of flame-retardant organic electrolyte and supercapacitor
A supercapacitor and organic electrolyte technology, applied in the field of electrochemical materials, can solve problems such as affecting the electrical properties of the electrolyte, high electrolyte viscosity, easy to heat and ignite, etc. The effect of internal resistance
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Embodiment 1
[0015] Embodiment 1: A kind of flame-retardant organic electrolytic solution that supercapacitor is used, and it is made up of electrolytic salt, non-aqueous organic solvent and functional auxiliary agent, and above-mentioned electrolytic salt is tetraethylammonium tetrafluoroborate and tetraoxalate borate methyl ammonium, the non-aqueous organic solvent is propylene carbonate, dimethyl carbonate, ethyl methyl carbonate and gamma-butyrolactone, and the functional auxiliary is a fluorophosphazene compound.
[0016] Further, the mass ratio of tetraethylammonium tetrafluoroborate and tetramethylammonium dioxalate borate is 3:1, and the molar concentration of the electrolyte salt in the electrolyte is 1.5mol / L, The mass fraction ratio of described propylene carbonate, dimethyl carbonate, ethyl methyl carbonate and gamma-butyrolactone is 5:3:2:1, and the mass percent of described functional auxiliary agent in non-aqueous organic solvent 3%.
[0017] The method for preparing a flam...
Embodiment 2
[0018] Embodiment 2: A kind of flame-retardant organic electrolytic solution that supercapacitor is used, and it is made up of electrolytic salt, non-aqueous organic solvent and functional auxiliary agent, and above-mentioned electrolytic salt is tetraethylammonium tetrafluoroborate and tetraoxalate borate methyl ammonium, the non-aqueous organic solvent is propylene carbonate, dimethyl carbonate, ethyl methyl carbonate and gamma-butyrolactone, and the functional auxiliary is a fluorophosphazene compound.
[0019] Further, the mass part ratio of tetraethylammonium tetrafluoroborate and tetramethylammonium dioxalate borate is 2:1, and the molar concentration of the electrolyte salt in the electrolyte is 0.6mol / L, The mass fraction ratio of described propylene carbonate, dimethyl carbonate, methyl ethyl carbonate and gamma-butyrolactone is 4:2:1:1, and the mass percent of described functional auxiliary agent in non-aqueous organic solvent 2%.
[0020] The specific steps of the ...
Embodiment 3
[0021] Embodiment 3: A kind of flame-retardant organic electrolytic solution that supercapacitor is used, and it is made up of electrolytic salt, non-aqueous organic solvent and functional auxiliary agent, and above-mentioned electrolytic salt is tetraethylammonium tetrafluoroborate and tetraoxalate borate methyl ammonium, the non-aqueous organic solvent is propylene carbonate, dimethyl carbonate, ethyl methyl carbonate and gamma-butyrolactone, and the functional auxiliary is a fluorophosphazene compound.
[0022] Further, the mass ratio of tetraethylammonium tetrafluoroborate and tetramethylammonium dioxalate borate is 4:1, and the molar concentration of the electrolyte salt in the electrolyte is 2mol / L, so The mass fraction ratio of described propylene carbonate, dimethyl carbonate, ethyl methyl carbonate and gamma-butyrolactone is 6:4:3:1, and the mass percentage of described functional auxiliary agent in nonaqueous organic solvent is 4%.
[0023] The specific steps of the...
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