4.5 micrometer electrolytic copper foil for lithium ion battery, preparation method and additive
A lithium-ion battery, electrolytic copper foil technology, applied in battery electrodes, electrolysis process, secondary batteries, etc., can solve the problem of high additive requirements, increase the number of nucleation, eliminate pinholes and microscopic defects, and inhibit the growth of crystal nuclei speed effect
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Embodiment 1
[0027] Embodiment 1: A kind of additive for lithium ion battery 4.5 μm electrolytic copper foil, it comprises 2.5g / l polyquaternium-10, 3.5g / l polyquaternium-7, 2.5g / l polyquaternium -51, 2g / l sodium polydithiodipropane sulfonate, 0.75g / l sodium alcohol thiopropane sulfonate, 0.2g / l gelatin, 0.2g / l basic saffron dye, 0.4g / l N-butyl Thiourea, 0.75 g / l sodium mercaptoimidazole benzenesulfonate and 0.4 g / l polyethylene glycol formal.
Embodiment 2
[0028] Embodiment 2: A kind of additive for lithium ion battery 4.5 μm electrolytic copper foil, it comprises 2.7g / l polyquaternium-10, 3.7g / l polyquaternium-7, 2.7g / l polyquaternium -51, 2.2g / l sodium polydithiodipropane sulfonate, 1g / l sodium alcohol thiopropane sulfonate, 0.25g / l gelatin, 0.25g / l basic saffron dye, 0.5g / l N-butyl Thiourea, 1 g / l sodium mercaptoimidazole benzenesulfonate and 0.5 g / l polyethylene glycol formal.
Embodiment 3
[0029] Embodiment 3: A kind of additive for 4.5 μ m electrolytic copper foils for lithium ion battery, it comprises 3 g / l polyquaternium-10, 5 g / l polyquaternium-7, 3 g / l polyquaternium -51, 2.5g / l sodium polydithiodipropane sulfonate, 1.25g / l sodium alcohol thiopropane sulfonate, 0.5g / l gelatin, 0.5g / l basic saffron dye, 0.2g / l N-butyl thiourea, 1.25g / l sodium mercaptoimidazole benzenesulfonate and 0.75g / l polyethylene glycol formal.
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