Super-capacitor pole piece
A super capacitor and pole piece technology, applied in the field of capacitors, can solve the problems of affecting the size of the capacitor, easy agglomeration of graphene oxide, complicated operation, etc., to ensure product quality, avoid position movement, and avoid the effect of movement.
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[0048] Example
[0049] 1. Using the method of the present invention, 23 groups of graphene oxide are prepared. The specific preparation parameters of each group are shown in Table 1, where the unit of each material is parts by weight.
[0050] Table 1 Specific preparation parameters of each embodiment
[0051] Example
[0052] 2. Specific surface area test.
[0053] BET specific surface area test at liquid nitrogen temperature: American Micromeritics ASAP 2010 specific surface area and pore analyzer. The results are shown in Table 2.
[0054] Table 2 Specific surface area of each embodiment and comparative example
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[0057] It can be seen from the above table and simple calculation that according to the mass ratio, graphene oxide: FeCl 3 ·6H 2 When O=2:15, the effect is best. The amount of graphene oxide is too large, the dispersibility of graphene oxide, the specific surface area of the coating is not ideal; FeCl 3 ·6H 2 Excessive amount of O, FeCl 3 ·6H 2 O ...
Example Embodiment
[0080] Example 2: Optimizing the preparation parameters of silica sol
[0081] 1. Prepare 10 sets of silica sol according to the above method, and the specific parameters are shown in the table. Prepare graphene oxide dispersion, graphene oxide: deionized water = 1:25. To prepare a polystyrene emulsion, styrene monomer: deionized water: Tween80: ammonium persulfate aqueous solution=1:5:0.07:0.25. Silica sol: polystyrene emulsion: graphene oxide dispersion = 22%: 56%: 22%. The pulling speed is 10cm / min, and 10 sets of coatings are prepared.
[0082] Table 5 Specific parameters of silica sol
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[0085] 2. Thermal conductivity test: C-THERM TCI thermal conductivity measuring instrument is used, and the test temperature is 20℃. The thermal conductivity of the above 10 groups of coatings is tested. The results are shown in Table 6.
[0086] Table 6 Thermal conductivity display
[0087] Group
[0088] 3. Test of the heating and cooling speed of the heating and cooling ...
Example Embodiment
[0094] Example 3: Optimizing the preparation parameters of polystyrene emulsion
[0095] 1. Prepare 8 groups of polystyrene emulsions according to the above method. The specific parameters are shown in Table 8. Prepare 8 groups of silica sol according to the method of Example 2 Group 4; prepare graphene oxide dispersion liquid, graphene oxide: deionized water = 1:25. According to the silica sol: polystyrene emulsion: graphene oxide dispersion = 22%: 56%: 22%, the pulling speed is 10 cm / min, 8 sets of coatings are prepared.
[0096] Table 8 Specific parameters of each group
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[0099] 2. The thermal conductivity was tested according to the method of Example 2, and the results are shown in Table 9.
[0100] Table 9 Thermal conductivity display
[0101] Group
[0102] 3. Test the heating and cooling effect according to the method of Example 2, and the results are shown in Table 10.
[0103] Table 10 Display of the effect of heating and cooling cycles
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