A method for preparing lithium iron phosphate modified with internal and external conductive carbon
A technology of lithium iron phosphate and conductive carbon, which is applied in the direction of circuits, electrical components, battery electrodes, etc., can solve the problems of inability to change the conductivity of materials, poor improvement effect, and poor rate discharge, so as to improve the specific gravity of capacity and good consistency and uniformity, the effect of reducing the specific gravity
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Embodiment 1
[0025] 1) Put glucose and distilled water into a 50mL reactor at a ratio of 1:10. The volume of the solution accounts for 2 / 3 of the volume of the entire reactor. After the glucose is completely dissolved, tighten the reactor and put it in an oven. The reaction conditions were set as follows: temperature 150 °C, reaction time 3 h. After the reaction is completed and the temperature is lowered to room temperature, the solution in the kettle is suction-filtered through a 200nm organic filter membrane to obtain solution A;
[0026] 2) After diluting the above solution A and distilled water according to 1:3, introduce it into the reaction flask, turn on the stirring paddle at a speed of 300r / min, then add ferrous sulfate to dissolve, add excess hydrogen peroxide, and use ammonia water to adjust the pH value to 3, and wait for the solution to When yellow-white precipitates appear as a whole, adjust the rotating speed to 500r / min, start timing aging, and the aging time is 5 hours; a...
Embodiment 2
[0033] 1) Put glucose and distilled water into a 100mL reactor at a ratio of 1:10. The volume of the solution accounts for 2 / 3 of the volume of the entire reactor. After the glucose is completely dissolved, tighten the reactor and put it in an oven. The reaction conditions were set as follows: temperature 160 °C, reaction time 2 h. After the reaction is completed and the temperature is lowered to room temperature, the solution in the kettle is suction-filtered through a 200nm organic filter membrane to obtain solution A;
[0034] 2) After diluting the above solution A and distilled water according to 1:5, import it into the reaction flask, turn on the stirring paddle at a speed of 300r / min, then add ferrous sulfate to dissolve, add excess hydrogen peroxide, and use ammonia water to adjust the pH value to 3, and wait for the solution to When yellow-white precipitates appear as a whole, adjust the rotating speed to 500r / min, start timing aging, and the aging time is 5 hours; aft...
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