Electrolyte for capacitor and capacitor using electrolyte
An electrolyte and capacitor technology, applied in the field of electrochemistry, can solve the problems of increasing the risk factor of flammable and explosive, low capacitance of pure ionic liquid, etc. Effect
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Embodiment 1
[0022] In a glove box, mix 1-butyl-3-methylimidazolium tetrafluoroborate and silver nanoparticles at a mass ratio of 1:0.01. After stirring for a period of time for 10 minutes, the silver nanoparticles were dissolved in 1-butyl-3-methylimidazolium tetrafluoroborate to obtain an electrolyte solution for an electric double layer capacitor.
[0023] The test shows that the equivalent internal resistance of the electric double layer capacitor using the electrolyte in this embodiment is 28Ω, which is higher than that of the pure ionic liquid measured under the same conditions, i.e. 1-butyl-3-methylimidazolium tetrafluoroboric acid The equivalent internal resistance of the electric double layer capacitor with salt as the electrolyte is 72.5% lower.
[0024] figure 1 For the AC impedance spectrum of the capacitor that adopts the electrolytic solution in the embodiment 1 to make; Wherein, the abscissa is the imaginary part, and the ordinate is the real part; As can be seen from the f...
Embodiment 2~56
[0025] Embodiment 2~56 see following form:
[0026]
[0027]
[0028]
[0029]
[0030]
[0031] Note: In the table,
[0032] 1. A means ionic liquid, B means silver nanoparticles;
[0033] 2. The equivalent internal resistance reduction ratio is the equivalent internal resistance of the electric double layer capacitor using the electrolyte of the corresponding embodiment in the corresponding embodiment compared to the equivalent internal resistance of the electric double layer capacitor using the pure ionic liquid measured under the same conditions the percentage of reduction;
[0034] 3. In Examples 2-56, various preparation process and test conditions are the same as those in Example 1.
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