A kind of preparation method of nickel-cobalt solid solution of positive electrode material of supercapacitor
A technology for supercapacitors and positive electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors. It can solve the problems of complex synthesis process, dangerous heating process, and large energy consumption. The effect of mild synthetic conditions
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0035] A kind of preparation method of nickel-cobalt solid solution of positive electrode material of supercapacitor in this embodiment comprises the following steps:
[0036] A) Tensio-active agent, co-surfactant and water are mixed homogeneously, and microemulsion is made, and described tensio-active agent is Triton X-100, and described co-surfactant is n-butanol and n-heptane, wherein surface Active agent Triton X-100: co-surfactant n-butanol: co-surfactant n-heptane: the molar ratio of water is 1:40:1:0.5;
[0037] B) dissolving nickel salt and cobalt salt in deionized water respectively to prepare cobalt ion aqueous solution and nickel ion aqueous solution, the concentration of cobalt salt in the described cobalt ion aqueous solution is 0.5mol / L, the concentration of nickel salt in the described nickel ion aqueous solution It is 0.5mol / L; wherein the nickel salt used is nickel chloride, and the cobalt salt used is cobalt chloride;
[0038] C) dissolving the complexing ag...
Embodiment 2
[0046] Surfactant triton X-100 in the preparation method of a kind of supercapacitor cathode material nickel-cobalt solid solution of the present embodiment: co-surfactant n-butanol: co-surfactant n-heptane: the mol ratio of water is 3: 50:3:3.
[0047] The preparation method of a nickel-cobalt solid solution of a positive electrode material of a supercapacitor in this embodiment has similar process steps to that of Example 1, and the specific process parameters different from Example 1 are shown in column 2 of Example 1 in Table 1.
[0048] From figure 2 It can be seen that the specific capacity of the prepared product nickel-cobalt oxalate solid solution nanomaterial reaches 1091.4F / g under the charge and discharge condition of 1A / g, and after 1000 cycles, the specific capacity of the prepared product maintains 85.6%.
Embodiment 3
[0050] Surfactant triton X-100 in the preparation method of a kind of supercapacitor cathode material nickel-cobalt solid solution of the present embodiment: co-surfactant n-butanol: co-surfactant n-heptane: the mol ratio of water is 1: 40:1:0.5.
[0051] The preparation method of a nickel-cobalt solid solution of a supercapacitor anode material of this embodiment has similar process steps to that of Example 1, and the specific process parameters different from Example 1 are shown in column 3 of Example 1 in Table 1.
[0052] From image 3 It can be seen that the specific capacity of the prepared product nickel-cobalt oxalate solid solution nanomaterial reaches 1317.9F / g under the charge and discharge condition of 1A / g, and after 2000 cycles, the specific capacity of the prepared product maintains 78.6%.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More