A kind of positive electrode of lithium ion solid state battery and preparation technology thereof and lithium ion solid state battery
A solid-state battery and preparation process technology, applied in electrode manufacturing, battery electrodes, electrode current collector coatings, etc., can solve the problems of difficulty in grasping the thickness of the coating layer, affecting the stability and uniformity of the coating layer, and improve the First time efficiency and discharge capacity, reduced requirements, cost savings
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Embodiment 1
[0056] The positive electrode of the lithium-ion solid-state battery of the present embodiment is prepared as follows:
[0057] 1) Coating a positive electrode active material layer consisting of 10wt% PTFE, 10wt% carbon fiber, and 80wt% nickel-cobalt lithium manganese oxide on the surface of the aluminum foil, and drying it;
[0058]2) Dissolve 35wt% lithium bicarbonate, 55wt% lithium lanthanum zirconium oxide, and 10wt% PTFE in NMP (slurry solid content 60wt%) to prepare a solid electrolyte coating solution, and set the coating thickness of the coating machine to 15 μm, the copper foil transfer rate is 2m / s, and the solid electrolyte coating solution is coated on the surface of the positive electrode active material layer;
[0059] 3) After the coating is completed, enter the heating area, the drying temperature is 180°C, and the residence time is 5min. After winding, it is dried in an oven at 105°C for 24h, and the dried electrode sheet is rolled and cut to obtain lithium i...
Embodiment 2
[0066] The positive electrode of the lithium-ion solid-state battery of the present embodiment is prepared as follows:
[0067] 1) Coating a positive electrode active material layer consisting of 10wt% PTFE, 10wt% carbon fiber, and 80wt% nickel-cobalt lithium manganese oxide on the surface of the aluminum foil, and drying it;
[0068] 2) Dissolve 40wt% lithium bicarbonate, 50wt% lithium lanthanum zirconium oxide, and 10wt% PTFE in NMP (slurry solid content 60wt%) to prepare a solid electrolyte coating solution, and set the coating thickness of the coating machine to 15 μm, the copper foil transfer rate is 2m / s, and the solid electrolyte coating solution is coated on the surface of the positive electrode active material layer;
[0069] 3) After the coating is completed, enter the heating area, the drying temperature is 180°C, and the residence time is 5min. After winding, it is dried in an oven at 105°C for 24h, and the dried electrode sheet is rolled and cut to obtain lithium ...
Embodiment 3
[0076] The positive electrode of the lithium-ion solid-state battery of the present embodiment is prepared as follows:
[0077] 1) Coating a positive electrode active material layer consisting of 10wt% PTFE, 10wt% carbon fiber, and 80wt% nickel-cobalt lithium manganese oxide on the surface of the aluminum foil, and drying it;
[0078] 2) Dissolve 30wt% lithium bicarbonate, 60wt% lithium lanthanum zirconium oxide, and 10wt% PTFE in NMP (slurry solid content 60wt%) to prepare a solid electrolyte coating solution, and set the coating thickness of the coating machine to 15 μm, the copper foil transfer rate is 2m / s, and the solid electrolyte coating solution is coated on the surface of the positive electrode active material layer;
[0079] 3) After the coating is completed, enter the heating area, the drying temperature is 180°C, and the residence time is 5min. After winding, it is dried in an oven at 105°C for 24h, and the dried electrode sheet is rolled and cut to obtain lithium ...
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Abstract
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