Iron based metal organic framework compound / graphene composite and application thereof
An organic framework and iron-based metal technology, applied in the field of lithium-ion battery energy, can solve the problems of unsatisfactory fast charging and discharging, limited lithium ion deintercalation efficiency, long activation time, etc., and achieve low raw material prices and good cycle stability , Environmentally friendly effect
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[0034] Example 1 Sample 1 # And battery C1 # Preparation
[0035] Sample 1 # Preparation:
[0036] Add 60 mL of DMF (N, N-dimethylformamide) to the beaker, C 8 H 6 O 4 (Terephthalic acid) 0.230g, FeCl 3 .6H 2 O (iron trichloride hexahydrate) 0.374g, anhydrous acetic acid 0.415g, and stir well, then transfer it to a 100mL reactor, put it in a blast drying oven at 150℃ for 2h, then separate Dry to obtain iron-based metal organic framework compound, which is recorded as sample 1 # .
[0037] Battery C1 # Preparation :
[0038] Weigh 0.0757g sample 1 # Put it in an agate mortar, grind for 5 minutes, weigh 0.0223g of carbon black into the agate mortar, continue to grind for 10 minutes, then add 0.0124g of polyvinylidene fluoride binder (abbreviated as PVDF binder) , Continue to grind for 40 minutes, then transfer to a 25mL glass bottle, add 2mL of N-methylpyrrolidone solution dropwise, place in a magnetic stirrer and continue to stir for 24h, the resulting slurry is coated on a 25...
Example Embodiment
[0039] Example 2 Sample 2 # And battery C2 # Preparation
[0040] Sample 2 # Preparation:
[0041] Take 30.4 mg of graphene in a glass beaker, and add 60 mL of DMF (N,N-dimethylformamide) to the beaker, and ultrasonically shake for 60 minutes to make it evenly dispersed; then add C to the beaker 8 H 6 O 4 (Terephthalic acid) 0.230g, FeCl 3 .6H 2 O (iron trichloride hexahydrate) 0.374g, anhydrous acetic acid 0.415g, and stir well, then transfer it to a 100mL reactor, put it in a blast drying oven at 150℃ for 2h, then separate After drying, an iron-based metal organic framework compound / graphene composite material is obtained, which is recorded as sample 2 # . Sample 2 # The weight percentage of graphene is 5wt%.
[0042] Battery C2 # Preparation :
[0043] Weigh 0.0757g sample 2 # Put it in an agate mortar, grind for 5 minutes, weigh 0.0223g of carbon black into the agate mortar, continue to grind for 10 minutes, then add 0.0124g of polyvinylidene fluoride binder (abbreviated ...
Example Embodiment
[0044] Example 3 Sample 3 # And battery C3 # Preparation
[0045] Sample 3 # Preparation:
[0046] Take 60.8 mg of graphene in a glass beaker, and add 60 mL of DMF (N, N-dimethylformamide) to the beaker, and ultrasonically shake for 60 min to make it evenly dispersed; then add C to the beaker 8 H 6 O 4 (Terephthalic acid) 0.230g, FeCl 3 .6H 2 O (iron trichloride hexahydrate) 0.374g, anhydrous acetic acid 0.415g, and stir well, then transfer it to a 100mL reactor, put it in a blast drying oven at 150℃ for 2h, then separate After drying, an iron-based metal organic framework compound / graphene composite material is obtained, which is recorded as sample 3 # . Sample 3 # The weight percentage of the graphene is 10wt%.
[0047] Battery C3 # Preparation :
[0048] Weigh 0.0785g sample 3 # Put it in an agate mortar, grind for 5 minutes, weigh 0.0224g of carbon black into the agate mortar, continue to grind for 10 minutes, then add 0.0122g of polyvinylidene fluoride binder (abbreviate...
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