Preparation method of silver-loaded titanium dioxide anode material
A technology of titanium dioxide and negative electrode materials, which is applied in the field of preparation of silver-supported titanium dioxide negative electrode materials, can solve the problems of poor conductivity of titanium dioxide, achieve low price, improve poor conductivity, and enhance the effect of electron transmission speed
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Examples
Embodiment 1
[0040] Example 1. A method for preparing a silver-supported titanium dioxide anode material, followed by the following steps:
[0041] 1) Stir 2 ml of deionized water and 0.6 ml of ethylene glycol, and then add 1 g of titanyl sulfate and stir for 2 hours. At this time, the titanyl sulfate is completely dissolved and a clear solution I is obtained.
[0042] 2) Add 0.2 g of polyvinylpyrrolidone to the above solution I, and after stirring for 30 minutes, the polyvinylpyrrolidone is completely dissolved to obtain a light yellow solution II.
[0043] 3). Under vigorous stirring, slowly add 0.5 ml of formamide dropwise (the dropping time is 1 minute) to the solution II obtained in step 2), and perform gel aging at 60°C for 2 hours, and then the obtained gel Dry at 60°C for 12 hours to obtain a dry gel.
[0044] 4). Dissolve 0.2 g of silver nitrate in 20 ml of ethylene glycol to obtain a mixed solution, then add 0.5 g of the dry gel obtained in step 3), stand for 12 hours in a 60℃ water bath...
Embodiment 2
[0047] Example 2. A method for preparing silver-loaded titanium dioxide anode material, which includes the following steps:
[0048] 1) Stir 2 ml of deionized water and 0.6 ml of ethylene glycol, and then add 1 g of titanyl sulfate and stir for 2 hours. At this time, the titanyl sulfate is completely dissolved and a clear solution I is obtained.
[0049] 2) 0.3 g of polyvinylpyrrolidone is added to the above solution I, and the polyvinylpyrrolidone is completely dissolved after stirring for 30 minutes to obtain a light yellow solution II.
[0050] 3). Under vigorous stirring, slowly add 0.5 ml of formamide dropwise (the dropping time is 1 minute) to the solution II obtained in step 2). The gel is aged at 60°C for 2 hours, and then the gel is heated at 60°C. Dry at ℃ for 12 hours to obtain a dry gel.
[0051] 4). Dissolve 0.2 g of silver nitrate in 20 ml of ethylene glycol to obtain a mixed solution, add 0.5 g of the dry gel obtained in step 3), stand for 12 hours in a water bath at 60...
Embodiment 3
[0054] Embodiment 3. A method for preparing silver-supported titanium dioxide anode material, which includes the following steps in sequence:
[0055] 1) Stir 2 ml of deionized water and 0.6 ml of ethylene glycol, and then add 1 g of titanyl sulfate and stir for 2 hours. At this time, the titanyl sulfate is completely dissolved and a clear solution I is obtained.
[0056] 2) Add 0.5 g of polyvinylpyrrolidone to the above-mentioned solution I, and after stirring for 30 minutes, the polyvinylpyrrolidone is completely dissolved to obtain a light yellow solution II.
[0057] 3). Under vigorous stirring, slowly add 0.5 ml of formamide dropwise (the dropping time is 1 minute) to the solution II obtained in step 2). The gel is aged at 60°C for 2 hours, and then the gel is heated at 60°C. Dry at ℃ for 12 hours to obtain a dry gel.
[0058] 4). Dissolve 0.2 g of silver nitrate in 20 ml of ethylene glycol to obtain a mixed solution, then add 0.5 g of the dry gel obtained in step 3), stand for 1...
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Description
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Application Information
- IPC
- H01M4/48; H01M4/62; H01M10/0525; H01M4/36
- CPC
- H01M4/364; H01M4/48; H01M4/626; H01M10/0525; Y02E60/10
- Inventors
- 郭兴忠; 朱文均