Li-ion supercapacitor
A technology of supercapacitors and lithium ions, applied in capacitors, electrolytic capacitors, circuits, etc., can solve problems such as consumption of lithium ions, instability, and energy density limitations in voltage windows
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Embodiment 1
[0013] Take 10 parts by mass of polyvinylidene fluoride and dissolve it in 250 parts by mass of N-methylpyrrolidone, add 10 parts by mass of conductive carbon black Super P, the specific surface area of 20 parts by mass is 1600m 2 / g of activated carbon and 60 parts by mass of LiNi 0.5 co 0.2 mn 0.3 o 2 , mixed evenly, coated on an aluminum foil, and fully dried to obtain a positive electrode sheet.
[0014] Take 5 parts by mass of polyvinylidene fluoride and dissolve it in 125 parts by mass of N-methylpyrrolidone, add 90 parts by mass of artificial graphite CAG-3MT and 5 parts by mass of conductive carbon black Super P, mix well and apply to copper Foil, fully dried to obtain a negative electrode sheet.
[0015] Control the thickness of the coated coating layer, so that the LiNi of the positive electrode sheet after cutting 0.5 co 0.2 mn 0.3 o 2 The mass ratio of the artificial graphite to the negative plate is 1.2. After the positive and negative electrodes are ro...
Embodiment 2
[0017] Take 30 parts by mass of polyvinylidene fluoride and dissolve it in 750 parts by mass of N-methylpyrrolidone, add 30 parts by mass of conductive carbon black Super P, and the specific surface area of 80 parts by mass is 2100m 2 / g of activated carbon and 160 parts by mass of LiNi 0.5 co 0.3 mn 0.2 o 2 , mixed evenly, coated on an aluminum foil, and fully dried to obtain a positive electrode sheet.
[0018] Take 5 parts by mass of polyvinylidene fluoride and dissolve it in 125 parts by mass of N-methylpyrrolidone, add 90 parts by mass of mesocarbon microspheres and 5 parts by mass of conductive carbon black Super P, mix well and apply to copper Foil, fully dried to obtain a negative electrode sheet.
[0019] Control the thickness of the coated coating layer, so that the LiNi of the positive electrode sheet after cutting 0.5 co 0.3 mn 0.2 o 2 The mass ratio of the mesophase carbon microspheres to the negative electrode sheet is 0.9. After the positive electrode ...
Embodiment 3
[0021] Take 10 parts by mass of polyvinylidene fluoride and dissolve it in 300 parts by mass of N-methylpyrrolidone, add 45 parts by mass of Ketjen Black EC-600JD and 45 parts by mass of LiNi0.6 co 0.2 mn 0.2 o 2 , mixed evenly, coated on an aluminum foil, and fully dried to obtain a positive electrode sheet.
[0022] Take 5 parts by mass of polyvinylidene fluoride and dissolve it in 125 parts by mass of N-methylpyrrolidone, add 90 parts by mass of soft carbon SC-1 and 5 parts by mass of conductive carbon black Super P, mix evenly and apply to copper Foil, fully dried to obtain a negative electrode sheet.
[0023] Control the thickness of the coating film layer of coating, make the LiNi of the cathode sheet after cutting 0.6 co 0.2 mn 0.2 o 2 The mass ratio of the soft carbon to the negative electrode sheet is 0.5. After the positive electrode sheet and the negative electrode sheet are rolled and welded with tabs, the positive electrode sheet and the negative electrode s...
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