Preparation method of lithium thionyl chloride power type battery positive electrode
A lithium thionyl chloride power and battery cathode technology, which is applied in electrode manufacturing, battery electrodes, lithium storage batteries, etc., can solve problems such as transformation of the production process of power-type cathodes, and achieve convenient operation, improve overall consistency, and good uniformity. Effect
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[0033] Example 1
[0034] 1) Powder pretreatment
[0035] As shown in Table 1, mix 1000g of acetylene black, 6g of anhydrous alcohol, 60g of positive electrode conductive agent copper powder, 70g of PTFE emulsion binder, and 3000g of pure water into a wet material and stir it evenly;
[0036] The wet material enters the extruding machine with a sieve aperture of 0.5mm for extruding to obtain a strip with a length of 1-2cm;
[0037] The strip material enters the centrifugal pelletizing machine to obtain fine pellets with a particle diameter of 0.5 mm;
[0038] The fine pellets are placed in a vacuum drying oven at 100°C for 8 hours;
[0039] 2) Internet of powder
[0040] The obtained dry fine pellets are crushed into fine powder with a particle size of 0.1~0.2μm;
[0041] Mix the powder and the 50% alcohol aqueous solution with a mass ratio of 1:2.2 to form a semi-dry powder;
[0042] The semi-dry powder material is evenly sprinkled on both sides of the nickel stretched net through the impe...
Example Embodiment
[0045] Example 2
[0046] 1) Powder pretreatment
[0047] As shown in Table 1, mix 1000g of acetylene black, 10g of anhydrous alcohol, 80g of positive electrode conductive agent nickel powder, 300g of vinylidene fluoride emulsion binder, and 3500g of pure water into a wet material and stir it evenly;
[0048] The wet material enters the extruding machine with a sieve aperture of 1.5mm for extruding, obtaining a strip with a length of 1-2cm;
[0049] The strip material enters the centrifugal pelletizing machine to obtain fine pellets with a particle diameter of 1.5 mm;
[0050] The pellets are placed in a vacuum drying oven at 100℃ and dried for 9 hours;
[0051] 2) Internet of powder
[0052] The obtained dry fine pellets are crushed into fine powder with a particle size of 0.1~0.2μm;
[0053] Mix the powder and 70% alcohol aqueous solution with a mass ratio of 1:1.5 to form a semi-dry powder;
[0054] The semi-dry powder is evenly scattered on both sides of the nickel stretched net through...
Example Embodiment
[0059] Example 3
[0060] 1) Powder pretreatment
[0061] As shown in Table 1, mix 1000g of acetylene black, 8g of anhydrous alcohol, 70g of positive electrode conductive agent platinum powder, 75g of polyacrylic acid emulsion binder, and 3200g of pure water into a wet material and stir it evenly;
[0062] The wet material enters the extruding machine with a sieve aperture of 1.5mm for extruding, obtaining a strip with a length of 1-2cm;
[0063] The strip material enters the centrifugal pelletizing machine to obtain fine pellets with a particle size of 1.2mm;
[0064] The fine pellets are placed in a vacuum drying oven at 100°C for 10 hours;
[0065] 2) Internet of powder
[0066] The obtained dry fine pellets are crushed into fine powder with a particle size of 0.1~0.2μm;
[0067] Mix the powder and the 99% alcohol aqueous solution with a mass ratio of 1:2 to form a semi-dry powder;
[0068] The semi-dry powder is evenly sprinkled on both sides of the nickel stretched net through the impe...
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