Functional diaphragm of lithium-sulfur battery and preparation method thereof
A lithium-sulfur battery, functional technology, applied in the field of functional diaphragm and its preparation, can solve the problems of low utilization rate of active material, low utilization rate of active material, reduction of battery mass energy density, etc., to reduce the shuttle effect and improve the battery life. Chemical properties, effect of improving dispersion transfer efficiency
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Embodiment 1
[0023] (1) Preparation of metal organic framework material MIL-125(Ti):
[0024] First measure 30mL of N,N-dimethylformamide and 8mL of methanol, mix well, take 3g of phthalic acid and dissolve in the mixed solvent, ultrasonicate for 60 minutes, add 8mL of tetrabutyl titanate, ultrasonicate for 60 minutes, and then The solution was placed in a polytetrafluoroethylene-lined reactor and reacted at 130°C for 24h. After the reaction was completed, the product was cooled to room temperature with the furnace, and the product was collected by centrifugation, washed repeatedly with deionized water three times, and finally put the washed product in a vacuum drying oven at 60°C for 24 hours to obtain the metal organic framework material MIL-125(Ti).
[0025] (2) Preparation of amino functionalized metal organic framework material MIL-125(Ti):
[0026] Take 0.8g of metal-organic framework material MIL-125(Ti) prepared in step (1), 2g of p-phenylenediamine, dissolve in 150mL of deionized...
Embodiment 2
[0032] (1) Preparation of metal organic framework material MIL-125(Ti):
[0033] First measure 20mL of N,N-dimethylformamide and 5mL of methanol, mix well, take 2g of phthalic acid and dissolve it in the mixed solvent, sonicate for 30 minutes, add 5mL of tetrabutyl titanate, sonicate for 30 minutes, then mix the above The solution was placed in a polytetrafluoroethylene-lined reactor at 120°C for 24h. After the reaction was completed, the product was cooled to room temperature with the furnace, and the product was collected by centrifugation, washed repeatedly with deionized water three times, and finally the washed product was placed in a vacuum drying oven at 50°C for 12 hours to obtain the metal-organic framework material MIL-125(Ti).
[0034] (2) Preparation of amino functionalized metal organic framework material MIL-125(Ti):
[0035] Take 0.5g of metal-organic framework material MIL-125(Ti) prepared in step (1), 1g of p-phenylenediamine, dissolve in 100mL of deionized w...
Embodiment 3
[0039] (1) Preparation of metal organic framework material MIL-125(Ti):
[0040] First measure 50mL of N,N-dimethylformamide and 10mL of methanol, mix well, take 5g of phthalic acid and dissolve it in the mixed solvent, ultrasonicate for 60 minutes, add 10mL of tetrabutyl titanate, ultrasonicate for 60 minutes, and then The solution was placed in a polytetrafluoroethylene-lined reactor and reacted at 150°C for 48h. After the reaction was completed, the product was cooled to room temperature with the furnace, and the product was collected by centrifugation, washed repeatedly with deionized water three times, and finally put the washed product in a vacuum drying oven at 80°C for 24 hours to obtain the metal organic framework material MIL-125(Ti).
[0041] (2) Preparation of amino functionalized metal organic framework material MIL-125(Ti):
[0042] Take 1g of metal-organic framework material MIL-125(Ti) prepared in step (1), 3g of p-phenylenediamine, dissolve in 200mL of deioni...
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