High-voltage and wide-temperature amplitude polymer lithium battery for 3C digital camera and fabrication method of polymer lithium battery
A high-voltage, polymer technology, applied in the direction of non-aqueous electrolyte battery electrodes, circuits, electrical components, etc., can solve problems such as low cost, large-scale continuous production, affecting battery life, battery expansion and deformation, etc., to achieve Improve high-current charge and discharge performance, improve safety performance and operating temperature range, and reduce the effect of lattice constant
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[0034] Example 1:
[0035] 3C digital high voltage, wide temperature range polymer lithium ion battery preparation method:
[0036] Manufacturing method of positive electrode:
[0037] Cobalt lithium oxide LiCoO 2 , Conductive material SuperP, CNT, binder PVDF-5130 and solvent are in a formula ratio of 97:1:1:1:30 by weight. First stir the binder PVDF-5130 and solvent NMP at high speed for 5 hours, then mix the stirred binder solution (50% by mass), all the conductive materials and 50% by mass solvent, and then add the positive electrode active material After high-speed stirring, add the remaining binder and solvent, and finally high-speed stirring again, after adjusting the viscosity, use Turbiscan analyzer to measure the slurry stability, and evenly coat the prepared slurry on both sides of the aluminum foil, and dry , Rolling and slitting to make a positive electrode sheet with tabs of a specific size.
[0038] Manufacturing method of negative electrode:
[0039] The negative acti...
Example Embodiment
[0043] Example 2:
[0044] 3C digital high voltage, wide temperature range polymer lithium ion battery preparation method:
[0045] Manufacturing method of positive electrode:
[0046] Cobalt lithium oxide LiCoO 2 , Conductive material SuperP, KS6, adhesive PVDF-5130 and solvent in a formula ratio of 96.5:1:1:1.5:29 by weight. First stir the binder PVDF-5130 and solvent NMP at high speed for 4 hours, then mix and stir the stirred binder solution (half the mass) with the full mass of conductive material, then add the positive electrode active material, and after high-speed stirring, add the remaining Finally, stir again at high speed, add a solvent to adjust the viscosity, measure the stability of the slurry with a Turbiscan analyzer, and evenly coat the obtained slurry on both sides of the aluminum foil, dry, roll, and divide into strips. A positive electrode sheet with tabs in a specific size.
[0047] Manufacturing method of negative electrode:
[0048] Mix the negative active mate...
Example Embodiment
[0052] Example 3:
[0053] 3C digital high voltage, wide temperature range polymer lithium ion battery preparation method:
[0054] Manufacturing method of positive electrode:
[0055] Cobalt lithium oxide LiCoO 2 , Conductive material SuperP, adhesive PVDF-HSV900 and solvent are in a formula ratio of 96.5:2:1.5:35 by weight. First stir the binder PVDF and solvent NMP at high speed for 4 hours, then mix the stirred binder solution (half the mass) with the full mass of conductive material, and then add the positive electrode active material. After high-speed stirring, add the remaining viscosity After mixing at high speed and adding solvent to adjust the viscosity, the slurry stability is measured by Turbiscan analyzer. The slurry is uniformly coated on both sides of the aluminum foil, dried, rolled, and divided into specific Size positive tab with tabs.
[0056] Manufacturing method of negative electrode:
[0057] Mix the negative active material artificial graphite, conductive graph...
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