Lithium ion battery cathode slurry and preparation method thereof
A lithium-ion battery and positive electrode slurry technology, which is applied in electrode manufacturing, battery electrodes, secondary batteries, etc., can solve problems such as failure, battery swelling, and long time consumption, and achieve long service life, prolong service life, and improve rapid conduction Effect
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Embodiment 1
[0033] A preparation method of lithium-ion battery cathode slurry, specifically comprising the steps of:
[0034] First, according to the ratio in Table 1, add the active material, conductive agent, additive and binder into the double planetary mixing tank, stir for 30 minutes until the powder is fully mixed; add 12% N-methylpyrrolidone by weight of all solid components After that, turn on the revolution and stir for 60 minutes; add N-methylpyrrolidone of 16% by weight of all solid components, turn on the revolution and disperse and stir for 120 minutes, and test the viscosity of the slurry to be 4000-6000mpa s; vacuumize for 30 minutes and filter to obtain the positive electrode slurry material.
Embodiment 2
[0037] A preparation method of lithium-ion battery cathode slurry, specifically comprising the steps of:
[0038] First, according to the ratio in Table 1, add the active material, conductive agent, additive and binder into the double planetary mixing tank, stir for 30 minutes until the powder is fully mixed; add 16% N-methylpyrrolidone by weight of all solid components After that, turn on the revolution and stir for 60 minutes; add N-methylpyrrolidone of 16% by weight of all solid components, turn on the revolution and disperse and stir for 120 minutes, and test the viscosity of the slurry to be 4000-6000mpa s; vacuumize for 30 minutes and filter to obtain the positive electrode slurry material.
Embodiment 3
[0041] A preparation method of lithium-ion battery cathode slurry, specifically comprising the steps of:
[0042] First, according to the ratio in Table 1, add the active material, conductive agent, additive and binder into the double planetary mixing tank, stir for 30 minutes until the powder is fully mixed; add 50% N-methylpyrrolidone by weight of all solid components After that, turn on the revolution and stir for 60 minutes; add N-methylpyrrolidone with 32% weight of all solid components, turn on the revolution and disperse and stir for 120 minutes, and test the viscosity of the slurry to be 6000-8000mpa s; vacuumize for 30 minutes and filter to obtain the positive electrode slurry material.
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