Hafid Khusyaeri
ABSTRACT
High energy and power density with long-lasting cycle performance are the main key feature of state-of-the-art Li-ion batteries, making them as one of the top choices for electric vehicle energy storage and power source. Lithium nickel cobalt aluminum oxide (NCA) specifically LiNi0.8Co0.15Al0.05O2 is cathode material with high gravimetric and volumetric energy density which is promising to be used as power and energy storage. In this paper, NCA/Graphite cells with high capacity and superior performance are fabricated via tuning of conducting agent composition. Acetylene black carbon black and graphitic KS-6 were selected as the conductive additives. Based on the result, high amount of KS-6 shows inferior performance at elevated current rate. On the contrary, high amount of AB shows better cycling stability but low specific capacity. In the end, high capacity and high-performance cells were obtained by a formula where mixture of KS-6 and AB ratio is 2:1.5 w/w.
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Index Terms
- Fabrication of High Performance 18650-Type NCA/Graphite Cylindrical Cells
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