NCA batteries, regardless of battery capacity or power, are among the highest in the battery. The main difference between a NCA cell and other lithium batteries is that the cathode is different from raw materials. The cathode material for the NCA battery is approximately 80% nickel, 15% cobalt, and 5% aluminium. Cobalt is not only a ferromagnetic material, but also retains its magnetic characteristics until the temperature is 1100 degrees celsius.
The batteries used by Tesla are NCA (lithium nickel cobalt composite oxide) batteries.