Manufacturing method of flexible lithium metal battery negative electrode
A technology for lithium metal batteries and manufacturing methods, which is applied to battery electrodes, lithium storage batteries, active material electrodes, etc., can solve problems such as inability to achieve uniform deposition of lithium metal, low Coulombic efficiency, and insufficient lithium affinity, and achieve excellent cycle performance, High Coulombic efficiency and light weight effect
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Embodiment 1
[0033] A. Wash the absorbent cotton cloth in deionized water and dry it;
[0034] B. The absorbent cotton cloth obtained in step A is immersed in an aqueous solution of 10wt% EDTA disodium copper solution, soaked for 1 hour and taken out, and dried at 60°C in a constant temperature blast oven;
[0035] C. The sample obtained in step B was placed in a porcelain ark, carbonized in a tube furnace under nitrogen atmosphere, the carbonization process was raised to 280 °C at a heating rate of 3 °C / min, and kept for 4 h; then, at a temperature of 7 °C / min The heating rate was raised to 900 °C, and the temperature was kept for 2 h; the heating was stopped and allowed to cool to room temperature naturally to obtain a carbon fiber cloth with carbon-supported metal particles;
[0036] D. immerse the carbon fiber cloth of the carbon-loaded metal particles obtained in step C in the ethanol solution of 2-methylimidazole whose mass fraction is 3wt%, take out after soaking for 24 hours, and d...
Embodiment 2
[0040] A. Wash the absorbent cotton cloth in deionized water and dry it;
[0041] B. The absorbent cotton cloth obtained in step A is immersed in an aqueous solution of 15wt% EDTA disodium copper solution, soaked for 6 hours and taken out, and dried at 60°C in a constant temperature blast oven;
[0042] C. The sample obtained in step B was placed in a porcelain ark, carbonized in a tube furnace under nitrogen atmosphere, the carbonization process was raised to 260 °C at a heating rate of 3 °C / min, and kept for 3 hours; then, at a temperature of 7 °C / min The heating rate was raised to 700°C, and the temperature was kept for 4 hours; the heating was stopped and allowed to cool to room temperature naturally to obtain carbon fiber cloth with carbon-supported metal particles;
[0043] D. immerse the carbon fiber cloth of the carbon-loaded metal particles obtained in step C in the ethanol solution of 2-methylimidazole with a mass fraction of 1 wt%, take out after soaking for 48 hour...
Embodiment 3
[0047] A. Wash the absorbent cotton cloth in deionized water and dry it;
[0048] B. The absorbent cotton cloth obtained in step A is immersed in a mixed aqueous solution of 15wt% EDTA disodium nickel and 10wt% EDTA disodium copper mixed solution, soaked for 6 hours and taken out, and dried at 60°C in a constant temperature blast oven;
[0049] C. The sample obtained in step B was placed in a porcelain ark, carbonized in a tube furnace under nitrogen atmosphere, the carbonization process was raised to 270 °C at a heating rate of 3 °C / min, and kept for 2 hours; then, at a temperature of 7 °C / min The heating rate was raised to 800°C, and the temperature was kept for 3 hours; the heating was stopped and allowed to cool to room temperature naturally to obtain a carbon fiber cloth with carbon-supported metal particles;
[0050] D. immerse the carbon fiber cloth of the carbon-loaded metal particles obtained in step C in a melamine acetic acid solution whose mass fraction is 5wt%, ta...
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Abstract
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