Material system of lithium battery
A lithium battery material and system technology, applied in secondary batteries, battery electrodes, battery pack components, etc., can solve problems such as poor battery material system performance, achieve high energy density and power density, high battery safety performance, Good cycle performance
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[0011] Example 1
[0012] Positive pole piece production: use a mechanical mixer to prepare lithium battery positive electrode slurry, the slurry includes positive active material LiNi 0.5 Co 0.2 Mn 0.3 O 2 , Conductive agent acetylene black, adhesive polyvinylidene fluoride, dispersant N-methylpyrrolidone. Use a coater to evenly coat the positive electrode slurry on both sides of the aluminum foil with a graphene coating of 1 micron (aluminum foil thickness is 13 micrometers). After drying in a vacuum oven, use a microtome to punch out a positive electrode sheet with a specific length and width. The positive pole piece can be obtained by removing the tab.
[0013] Negative pole piece production: A mechanical mixer is used to prepare battery negative electrode slurry. The slurry includes negative active material artificial graphite, conductive agent acetylene black, binder polyvinylidene fluoride, and dispersant N-methylpyrrolidone. Use a coater to evenly coat the negative electro...
Example Embodiment
[0015] Example 2
[0016] Positive pole piece production: use a mechanical mixer to prepare lithium battery positive electrode slurry, the slurry includes positive active material LiNi 0.6 Co 0.2 Mn 0.2 O 2 , Conductive agent acetylene black, adhesive polyvinylidene fluoride, dispersant N-methylpyrrolidone. Use a coater to evenly coat the positive electrode slurry on both sides of the aluminum foil with a graphene coating of 0.5 microns (aluminum foil thickness is 12 microns). After drying in a vacuum oven, use a microtome to punch into a positive electrode sheet with a specific length and width, leaving one end The positive pole piece can be obtained by removing the tab.
[0017] Negative pole piece production: A mechanical mixer is used to prepare battery negative electrode slurry. The slurry includes negative active material hard carbon, conductive agent acetylene black, binder polyvinylidene fluoride, and dispersant N-methylpyrrolidone. Use a coater to evenly coat the negative...
Example Embodiment
[0019] Example 3
[0020] Positive pole piece production: use a mechanical mixer to prepare lithium battery positive electrode slurry, the slurry includes positive active material LiNi 0.8 Co 0.1 Al 0.1 O 2 , Conductive agent acetylene black, adhesive polyvinylidene fluoride, dispersant N-methylpyrrolidone. Use a coater to evenly coat the positive electrode slurry on both sides of the aluminum foil with a graphene coating of 0.8 microns (aluminum foil thickness is 10 microns). After drying in a vacuum oven, use a microtome to punch out a positive electrode sheet with a specific length and width. The positive pole piece can be obtained by removing the tab.
[0021] Negative pole piece production: A mechanical mixer is used to prepare battery negative electrode slurry. The slurry includes negative active material hard carbon, conductive agent acetylene black, binder polyvinylidene fluoride, and dispersant N-methylpyrrolidone. Use a coater to evenly coat the negative electrode slurry...
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