Metal formate/carbon nano tube lithium ion battery cathode material and preparing method thereof
A lithium-ion battery, metal formate technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of low electronic and ionic conductivity, low discharge specific capacity, and increased material polarization, and achieve high Effects of specific capacity, sufficient compounding, and increased contact area
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[0035] Example 1
[0036] (1) Weigh out 5.678g of nickel nitrate hexahydrate and 5ml of formic acid with a purity of 88% (molar ratio 1:6.7) at room temperature, add them to a beaker containing 40ml of N,N-dimethylformamide solvent, and stir for 30 minutes to make The two are evenly mixed to obtain a mixed solution;
[0037] (2) Mix 0.0061g of acidified carbon nanotubes and 9ml of N,N-dimethylformamide in a beaker; stir at room temperature for 10 minutes, ultrasonically disperse for 30 minutes, repeat the stirring and ultrasonic dispersion 3 times, until the acidified carbon nanotubes are evenly dispersed. Into a suspension
[0038] (3) Measure 1ml of the mixed solution in step (1) and mix with the suspension in step (2), stir for 30 minutes to make the two evenly mixed, and transfer the mixed solution to a 25ml reactor with PTFE lining , Sealed with a cap;
[0039] (4) After the reaction, place the reaction kettle in a programmed temperature-controlled oven and keep it at 100°C for...
Example Embodiment
[0041] Example 2
[0042] (1) Weigh out 5.678g of nickel nitrate hexahydrate and 5ml of formic acid with a purity of 88% (molar ratio 1:6.7) at room temperature, add them to a beaker containing 40ml of N,N-dimethylformamide solvent, and stir for 30 minutes to make The two are evenly mixed to obtain a mixed solution;
[0043] (2) Mix 0.0091g of acidified carbon nanotubes and 9ml of N,N-dimethylformamide in a beaker; stir at room temperature for 10 minutes, ultrasonically disperse for 30 minutes, repeat the stirring and ultrasonic dispersion 3 times, until the acidified carbon nanotubes are evenly dispersed. Into a suspension
[0044] (3) Measure 1ml of the mixed solution in step (1) and mix with the suspension in step (2), stir for 30 minutes to make the two evenly mixed, and transfer the mixed solution to a 25ml reactor with PTFE lining , Sealed with a cap;
[0045] (4) After the reaction, place the reaction kettle in a programmed temperature-controlled oven and keep it at 100°C f...
Example Embodiment
[0047] Example 3
[0048] (1) Weigh out 5.678g of nickel nitrate hexahydrate and 5ml of formic acid with a purity of 88% (molar ratio 1:6.7) at room temperature, add them to a beaker containing 40ml of N,N-dimethylformamide solvent, and stir for 30 minutes to make The two are evenly mixed to obtain a mixed solution;
[0049] (2) Mix 0.0122g of acidified carbon nanotubes and 9ml of N,N-dimethylformamide in a beaker; stir at room temperature for 10 minutes, ultrasonically disperse for 30 minutes, repeat the stirring and ultrasonic dispersion 3 times, until the acidified carbon nanotubes are evenly dispersed. Into a suspension
[0050] (3) Measure 1ml of the mixed solution in step (1) and mix with the suspension in step (2), stir for 30 minutes to make the two evenly mixed, and transfer the mixed solution to a 25ml reactor with PTFE lining , Sealed with a cap;
[0051] (4) After the reaction, place the reaction kettle in a programmed temperature-controlled oven and keep it at 100°C for...
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