Resin composition for supercapacitor electrode, slurry, electrode and supercapacitor
A supercapacitor and resin composition technology, applied in the direction of hybrid capacitor electrodes, etc., can solve the problems of electrode layer peeling and poor energy storage efficiency of capacitors, and achieve the effect of improving energy storage efficiency
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Embodiment 1
[0118] a. Preparation of resin composition for supercapacitor electrodes
[0119] a-1. Preparation of core solution
[0120] In a pressure-resistant reactor, put 400 parts by weight of deionized water, 0.40 parts by weight of dicyclohexyl sulfosuccinate sodium salt (as an emulsifier, trade name MA-80) and 100 parts by weight of To form the monomer mixture of the core portion, wherein the monomer mixture used to form the core portion is 100% by weight, n-butyl acrylate (n-BA) is 99.7% by weight; allyl methacrylate (AMA) is 0.3% by weight. Next, after raising the temperature to 60° C., 0.15 parts by weight of tert-butyl hydroperoxide (BHP) was added as a polymerization initiator, and a reaction was performed for 7 hours. A core solution having a solid content of 20% by weight can be obtained.
[0121] a-2. Preparation of resin composition for supercapacitor electrodes
[0122]In a three-necked flask with a capacity of 1000 ml, 410 parts by weight of the core solution and 290...
Embodiment 2 to Embodiment 8
[0130] The resin compositions for supercapacitor electrodes, slurry, electrodes and supercapacitors of Examples 2 to 8 were prepared in the same steps as in Example 1. The only difference is that the composition and dosage of the resin composition for supercapacitor electrodes are changed (as shown in Table 2), and the compounds corresponding to the abbreviations in Table 2 are shown in Table 1. The obtained supercapacitor electrode resin composition and electrodes were evaluated, and the results are shown in Table 2.
Embodiment 9
[0140] The resin composition for supercapacitor electrode of embodiment 9, slurry, electrode and supercapacitor are prepared with the same steps as embodiment 1, only difference is: the resin composition for supercapacitor electrode of embodiment 9 is made of 75 The resin composition for supercapacitor electrodes of Example 1 in parts by weight and 25 parts by weight of the resin composition for supercapacitor electrodes in Comparative Example 1 are composed. The result of the adhesiveness evaluation was "◯".
[0141]
[0142] a.Measurement of average particle size
[0143] The prepared resin composition for supercapacitor electrodes was used to measure the average particle diameter of the polymer by the dynamic light scattering method of a laser particle size analyzer (manufactured by MALVERN Corporation, model: nano-s90).
[0144] b. Adhesion
[0145] Take an electrode of 1cm×10cm. Next, the electrode was bent such that one end was wrapped around a 1 mm diameter rolling...
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