Best Formulation of Water-Based Slurry Making for Excellent Lithium Nickel Cobalt Aluminum Oxide (LiNi0.8Co0.15Al0.05O2) Performance

Abstract

LiNi0.8Co0.15Al0.05O2 (NCA) is one of Ni-rich in Li-ion battery cathode family that offers capacity around 200 mAh/gram high energy density, low cost, non-toxicity, and superior thermal stability. To produce some good performance of the batteries, it’s needed the best slurry which is prepared for coating process making in water-based system. Due to remarkably improved the bonding capacity, cycle stability, rate performance of battery cathode. The formula of Lithium Nickel Cobalt Aluminum Oxide (LiNi0.8Co0.15Al0.05O2 or NCA): Acetylene Black (AB): Carboxymethyl Cellulose (CMC): Styrene Butadiene Rubber (SBR) is has many ratios as 80:10:5:5, 80:10:3:7, 90:6:2:2, 90:5:2:3, 85:10:2:3, and 80:15:2:3. All of formula can stick on Al-foil, so the electrode sheet can make by aqueous-based system but should be have appropriately formula and some of slurry not enough to coat on Al-foil because it has less slurry. Summary all of cathode sheet has voltage 3.7 V. The formula has the capacity/gram around 121.1-132.8 mAh/gram and efficiency around 85%-97%, Formula 4 (90:5:2:3) is best formula has high capacity when compare with another formula and after calculate that has capacity/gram 132.8 mAh/gram and high efficiency 95-97%.