Aqueous zinc-iodine secondary battery positive electrode material and positive electrode thereof, and aqueous zinc-iodine secondary battery
A positive electrode material and secondary battery technology, applied in secondary batteries, battery electrodes, electrode collector coatings, etc., can solve the problems of active material iodine loss, poor rate performance, poor cycle stability, etc., to achieve low price, The effect of improving electrochemical performance and simplifying the production process
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Embodiment 1
[0040]The aqueous zinc iodine secondary battery positive electrode material is represented by a mass percentage of mass, and the positive electrode material is 10%, the SUPER P conductive agent 10% and the polyacrylonitrile-strong base fiber and iodine composite material 80. % Composition (the mass fraction of iodine in the composite material is 32%);
[0041] The polyacrylonitrile base strength is prepared by the technical solution disclosed in Example 1 in Example 1 in Example 1 of the Specific CN112593403A.
[0042] The polyacrylonitrile base strong base fiber and iodine composite is prepared by the following method: the polypropylene base strength is mixed with the potassium iodide in water in water, and the amount of water is added to two. A total of 30 times the total substance, then soaked under 25 ° C for 12 h, soaking, filtration was carried out after soaking, and then washed with distilled water and ethanol. After washing, the resulting product was dried under 60 ° C for...
Embodiment 2
[0049] The aqueous zinc iodine secondary battery positive electrode material is represented by a mass percentage of mass, and the positive electrode material is 10%, the SUPER P conductive agent 10% and the polypropylene-based weak base fiber and the iodine composite material 80. % Composition (the mass fraction of iodine in the composite material is 40%);
[0050] The polyacrylonitrile group is prepared by the technical solution disclosed in the third embodiment of the present embodiment according to the example of "Patent CN103663621A".
[0051] The composite of the polyacrylonitrile group and the iodide is prepared by the following method: the polypropylene-based weak base fibers are mixed in water in water in water according to the mass ratio 1: 0.6, and the amount of water is added. The total amount of two substances was 20 times, and then dried using a vacuum pump after soaking at 45 ° C, it was subjected to filtration using a vacuum pump. Composite of acrylonitrile group we...
Embodiment 3
[0058] The aqueous zinc iodine secondary battery positive electrode material is represented by a mass percentage of mass, and the positive electrode material is 5%, Super P conductive agent 5%, and grafted bendell (Belarusian Fibana-1). 90% of the composite material of iodine (45% of the mass fraction of iodine in the composite material);
[0059] The composite of the graftedstystone and iodine and iodine is prepared by the following method: mixing the graftedstystone-based base strength and potassium iodide is mixed in water in water, and the amount of water is added to the water. The total amount of two substances was 25 times, and then dried using a vacuum pump after soaking at 30 ° C. The composite of the branin-based primary metal fiber and iodine.
[0060] The preparation method of the positive electrode according to the present embodiment, the detailed steps of the preparation method are as follows:
[0061] a, ionure according to the above polyfial fluoride, Super P conduc...
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