High voltage lithium battery cell and preparation method therefor, and lithium ion battery
A technology for high-voltage lithium batteries and batteries, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, and final product manufacturing. High voltage and high energy density, improved battery safety and high cycle performance
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Embodiment 1
[0084] This embodiment is used to illustrate the high-voltage lithium battery cell and the preparation method thereof disclosed in the present invention.
[0085] Production of positive electrode:
[0086] 930 grams of positive active material LiNi 0.5 Mn 1.5 O 4 , 30 g of adhesive PVDF, 20 g of acetylene black, and 20 g of conductive agent HV were added to 1500 g of solvent NMP (N-methylpyrrolidone), and then stirred in a vacuum mixer to form a stable and uniform positive electrode slurry. The positive electrode slurry was uniformly and intermittently coated on both sides of aluminum foil (aluminum foil size: 160 mm in width and 16 microns in thickness), then dried at 120° C., and pressed by a roller press to obtain a positive electrode.
[0087] Production of the first complex:
[0088] 950 grams of inorganic electrolyte particles Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 , 5 grams of binder SBR is added to 1000 grams of deionized water, and then stirred in a vacuum mixer to form a stable and ...
Embodiment 2
[0096] This embodiment is used to illustrate the high-voltage lithium battery cell and the preparation method thereof disclosed in the present invention.
[0097] Production of positive electrode:
[0098] 930 grams of positive active material LiNi 0.5 Mn 1.5 O 4 , 30 g of adhesive PVDF, 20 g of acetylene black, and 20 g of conductive agent HV were added to 1500 g of solvent NMP (N-methylpyrrolidone), and then stirred in a vacuum mixer to form a stable and uniform positive electrode slurry. The positive electrode slurry was uniformly and intermittently coated on both sides of aluminum foil (aluminum foil size: 160 mm in width and 16 microns in thickness), then dried at 120° C., and pressed by a roller press to obtain a positive electrode.
[0099] Production of the first complex:
[0100] 950 grams of inorganic electrolyte particles Li 0.5 La 0.5 TiO 3 , 5 grams of binder SBR is added to 1000 grams of deionized water, and then stirred in a vacuum mixer to form a stable and uniform ino...
Embodiment 3
[0108] This embodiment is used to illustrate the high-voltage lithium battery cell and the preparation method thereof disclosed in the present invention.
[0109] Production of inorganic electrolyte layer:
[0110] 1000 grams of inorganic electrolyte particles Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 Sintered at 900°C to form an inorganic electrolyte layer with a thickness of 250 μm.
[0111] Production of the first complex:
[0112] 850 grams of cathode active material LiMn 2 O 4 , 80 grams of Li 3 PO 4 30 grams of adhesive polyvinylidene fluoride, 20 grams of carbon nanotubes, and 20 grams of conductive agent HV are added to 1800 grams of solvent NMP (N-methylpyrrolidone), and then stirred in a vacuum mixer to form a stable and uniform positive electrode slurry . The positive electrode slurry is uniformly and intermittently coated on the surface of the inorganic electrolyte layer. Then, it is dried at 120°C and pressed by a roller press to obtain the positive electrode material. Then the s...
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Abstract
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Application Information
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