Lithium battery pole piece, preparation method thereof and lithium battery
A lithium battery and pole piece technology is applied to the lithium battery pole piece and its preparation, and the field of lithium batteries, which can solve the problem that the preparation method needs to be improved, and achieve the effects of improving the reliability of the pole piece, improving the oxidizing property, and increasing the surface roughness.
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[0063] Example 1
[0064] Prepare the negative pole piece of lithium battery according to the following steps:
[0065] (1) Coating a carbon-containing conductive layer on the surface of the copper foil, wherein the carbon-containing conductive layer is coated with a slurry containing 60 parts of carbon black, 35 parts of styrene-butadiene rubber emulsion, 5 parts of polyvinyl chloride and 400 parts of deionized water It is formed by curing on at least a part of the surface of the copper foil.
[0066] (2) Carry out microwave ultrasonic treatment or blowing negative pressure dust absorption treatment on the carbon-containing conductive layer and the foils on both sides.
[0067] (3) Perform corona treatment on the carbon-containing conductive layer according to the following conditions: the corona treatment power is 10kW, the distance between the corona treatment and the carbon-containing conductive layer is 1mm, and the corona treatment time is 0.5s.
[0068] (4) Coating the negative ...
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[0069] Example 2
[0070] The lithium battery negative pole piece was prepared in the same manner as in Example 1, except that in step (3), the use power of the corona processor was 5kW.
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[0071] Example 3
[0072] The lithium battery negative pole piece was prepared in the same manner as in Example 1, except that in step (3), the power used by the corona processor was 20 kW.
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