Preparation method of supercapacitor composite electrode material
A technology for supercapacitors and composite electrodes, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., and can solve problems such as difficulty in forming uniformly dispersed porous active materials, sensitive pH response of solutions, and easy agglomeration of active particles , to achieve excellent capacitance characteristics, low cost, and promote adhesion
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[0025] Below in conjunction with specific embodiment the present invention will be further described, and its method is as follows:
[0026] 1) Use metallographic sandpaper of different particle sizes to remove oxides on the surface of the substrate according to conventional methods;
[0027] 2) Put the polished substrate in an ultrasonic cleaning machine according to the conventional method, first wash it with acetone for 5 minutes, and then wash it with lye for 5 minutes;
[0028] 3) Use a plasma machine to treat the surface of the cleaned substrate for 3 to 5 minutes, and ensure that the distance between the flame nozzle and the surface of the substrate is 2 to 3 cm;
[0029] 4) Incorporate nanoscale TiO 2 Mix with ethanol at a ratio of 0.5g:400ml, then use a ball mill to grind 15-20 times in the order of forward grinding for 1h, stop for 0.5h, and reverse grinding for 1h to obtain a suspension;
[0030] 5) Put the suspension in a cell disruptor, and perform ultrasonic di...
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