Improved high-voltage cycling stability of single-crystalline LiNi0.8Co0.1Mn0.1O2 cathode by tantalum doping

Ta doping refines particles and ameliorates the side reaction between cathode and electrolyte. The optimal Ta-doped LiNi 0.8 Co 0.1 Mn 0.1 O 2 delivers a high capacity retention of 88.2% and a superior energy retention of 86.3% after 200 cycles.