Electrolyte modulator, fabrication methods and applications of same
A technology for electrolytes, regulators, applied in the field of electrochemistry, which can solve the problems of overlapping adverse aspects, safety, lack of conversion additives, etc.
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Embodiment 1
[0090] In this exemplary example, crystalline UiO-66-NH was synthesized based on a facile hydrothermal synthesis 2 . First, about 5 mmol of 2-amino-terephthalic acid (NH 2 -BDC), about 3mmol of ZrCl 4 and about 6 mmol of H 2 O was added into about 150 mL of dimethylformamide (DMF) and stirred continuously for 30 minutes. Excess ligand ratios over metal salts and two equivalent moles of water, aimed at tuning growth Zr cluster nodes as well as obtaining highly crystalline products, especially highly crystalline UiO-66-NH 2 . Transfer the completely dissolved transparent mixture into a 250 mL glass bottle preheated at about 120°C for about 21 hours. The pale yellow precipitate was collected by centrifugation and washed thoroughly with DMF (3 times) and methanol (3 times).
[0091] Such as image 3 As shown, the crystal structure was confirmed by X-ray diffraction patterns, and all peaks can be transformed into UiO-66-NH 2 , and no impurities were detected. Examination o...
Embodiment 2
[0094] In this exemplary embodiment, anhydrous UiO-66-NH 2 Synthesized without water conditioner. First, approximately 5 mmol of NH 2 -BDC and about 3 mmol of ZrCl 4 Dissolve completely in about 120 mL of DMF. The reaction is carried out in a microwave reactor at about 150°C and about 50 bar for about 1 hour. The precipitated yellow powder was purified and activated in a similar manner to the previous examples. About 250 mg of degassed MOF powder was mixed with about 500 μl of liquid electrolyte, which corresponds to about 0.5 mg μl -1 relative concentration. The mixture was sonicated for about 5 minutes and aged overnight, and the resulting slurry electrolyte showed no tendency to phase separate.
[0095] Lithium symmetric cells were fabricated using Celgard 3401 microporous polypropylene (PP) membranes to evaluate interfacial compatibility and lithium transfer numbers. About 12.5 μl of the prepared slurry electrolyte was uniformly coated on one side of the lithium foi...
PUM
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