Lithium cell anode active substance, anode dressing and its preparing method
A positive active material and lithium battery technology, applied in electrode manufacturing, battery electrodes, circuits, etc., can solve the problems of complex process, unstable product performance, high cost, etc., and achieve high platform capacity, enhanced conductivity, and uniform grinding high effect
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[0039] Example 1
[0040] Using the ternary material: lithium cobalt oxide with a proportion of 5:5, the ball milling is carried out according to the following steps:
[0041] 1) Add the ternary material, lithium cobalt oxide and graphite conductive agent into the ball milling tank, and use the speed of 1000-1500r / min for ball milling, and the milling time is 4 hours. The diameters of the zirconium balls used in the ball milling are 3mm, 6.5mm, 10mm, 15mm, and 20mm respectively, and they are placed in the ball milling tank according to the number ratio of 2:3:3:4:4.
[0042] 2). After the first step is completed, let it stand for 30 minutes, add carbon black conductive agent into the ball milling tank, and then ball mill at 1000r / min for 2 hours. Let stand for 1 hour.
[0043] Chemical mixing process:
[0044] 1). The mixed materials are continuously and slowly added to the colloid, and the addition is completed within half an hour, followed by thick mixing for 2 hours, thick mixi...
Example Embodiment
[0047] Example 2
[0048] With a ternary material: lithium cobalt oxide ratio of 6:4, the ball milling is carried out in the following steps:
[0049] 1): Add the ternary material, lithium cobalt oxide and graphite conductive agent into the ball milling tank, and use the speed of 1000-1500r / min for ball milling. The milling time is 4 hours. The diameters of the zirconium balls used in the ball mill are 3mm, 6.5mm, 10mm, 15mm, and 20mm respectively, and they are placed in the ball mill tank at a ratio of 2:3:3:4:4.
[0050] 2): After the first step is completed, let it stand for 30 minutes, add carbon black conductive agent into the ball milling tank, and then ball mill at 1000r / min for 2 hours. Let stand for 1 hour.
[0051] Chemical mixing process:
[0052] 1): The mixed materials are continuously and slowly added to the colloid, and the addition is completed within half an hour, followed by thick mixing for 2 hours, thick mixing, and the mixer speed is 3600r / min.
[0053] 2): Adju...
Example Embodiment
[0055] Example 3
[0056] According to the ternary material: lithium cobalt oxide composition ratio of 7:3, follow the steps below:
[0057] 1). Add the ternary material, lithium cobalt oxide and graphite conductive agent into the ball milling tank, and use the rotation speed of 1000-1500r / min for ball milling, and the milling time is 4 hours. The diameters of the zirconium balls used in the ball mill are 3mm, 6.5mm, 10mm, 15mm, and 20mm respectively, and they are placed in the ball mill tank at a ratio of 2:3:3:4:4.
[0058] 2). After the first step is completed, let it stand for 30 minutes, add carbon black conductive agent into the ball mill tank, and then ball mill at 1000r / min for 2 hours. Let stand for 1 hour.
[0059] Chemical mixing process:
[0060] 1). The mixed materials are continuously and slowly added to the colloid, and the addition is completed within half an hour, followed by thick mixing for 2 hours, thick mixing, and the mixer speed is 3600r / min.
[0061] 2) Adj...
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