A kind of in-situ electrode and its preparation method
An in-situ electrode and atomic ratio technology, applied in battery electrodes, hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, etc., can solve problems such as poor conductivity
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Embodiment 1
[0031] Dissolve nickel acetate and cobalt chloride in ethylene glycol solution, and stir at 80°C for 2 h, mix the solution with a certain concentration of thiourea in ethylene glycol solution, and add a piece of 1.5 cm * 7 cm Fluorine-doped tin oxide conductive glass was put into a hydrothermal kettle and solvothermally heated at 200°C for 7 h. The atomic ratio of metal atoms to sulfur atoms was 3:10, the atomic ratio of nickel to cobalt was 1:2, and the concentration of nickel atoms was 1 mM. The substrate was taken out, washed and dried to obtain an in-situ electrode with a thickness of about 50 nm.
[0032] figure 1 It is a schematic diagram of the light reflection effect of Ni-Co-S in this embodiment. In the figure, Ni-Co-S has a good specular reflection imaging effect, and the film is uniform and dense.
[0033] figure 2 It is a schematic diagram of the light transmission effect of Ni-Co-S in this embodiment. It can be seen that the Ni-Co-S in-situ electrode has a h...
Embodiment 2
[0039] Dissolve zinc acetate and cobalt chloride in ethylene glycol solution, and stir at 80°C for 2 h, mix the solution with a certain concentration of thiourea in ethylene glycol solution, and add a piece of 3 cm * 3.5 cm Fluorine-doped tin oxide conductive glass was put into a hydrothermal kettle and solvothermally heated at 200°C for 7 h. The atomic ratio of metal atoms to sulfur atoms was 3:10, the atomic ratio of zinc to cobalt was 1:2, and the concentration of zinc atoms was 5 mM. The substrate was taken out, cleaned, and dried to obtain an in-situ electrode with a thickness of about 1 μm.
Embodiment 3
[0041] Dissolve ferric chloride and cobalt chloride in ethylene glycol solution, and stir at 80°C for 2 h, mix this solution with ethylene glycol solution of a certain concentration of thiourea, and add a piece of 3 cm * 3.5 cm The fluorine-doped tin oxide conductive glass was put into a hydrothermal kettle and solvothermally heated at 200°C for 7 h. The atomic ratio of metal atoms to sulfur atoms was 3:10, the atomic ratio of iron and cobalt was 1:2, and the concentration of iron atoms was is 5 mM. The substrate was taken out, cleaned, and dried to obtain an in-situ electrode with a thickness of about 2 μm.
[0042] image 3 It is the XRD pattern of Ni-Co-S (Example 1), Zn-Co-S (Example 2), Fe-Co-S (Example 3). It can be seen from the figure that the electrodes prepared by this scheme all contain metal components and sulfide components, which are mixtures.
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Abstract
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