Dual-modified Zr4+-doped and ZrO2-coated NCM-622 with excellent electrochemical properties was synthesized by simple wet-chemical coating. X-ray diffraction analysis revealed the unit cell expansion along the c-direction in the Zr-modified sample, which was substantial in improving the lithium-ion kinetics. The surface coating of ZrO2 was visible in TEM images protecting the cathode from surface-side reactions. The electrochemical performance of the Zr-modified sample was superior to that of the other modified and uncoated samples; it showed higher cyclic stability even after 100 cycles at a 1C rate and offers 86.3% capacity retention, whereas the unmodified sample yielded only 21.7% of its initial capacity. Zr4+ doping acts as a pillar, stabilizing the structure to provide better Li+ diffusion and increased cyclability and rate capability. Further analysis showed that the Zr-modification has shown superior electrochemical performance and cyclic stability even at elevated temperatures of 55 °C. The ZrO2 coating on the surface can act as an HF scavenger during cycling at high temperatures. The superior cycling stability and rate capability can be attributed to the synergetic effect of simultaneous doping and coating of zirconia on the NCM-622. Graphical abstract: [Figure not available: see fulltext.].