Recent Advances in Enhanced Performance of Ni‐Rich Cathode Materials for Li‐Ion Batteries: A Review

High energy Li‐ion batteries (LIBs) have garnered substantial consideration in recent years for their utilization in many fields like communication, transportation, and aviation. As the cathode is the crucial component of LIBs, so by enhancing its electrochemical performance, the capacity, rate capability, as well as cyclability of batteries can be enhanced. Ni‐rich cathode materials (LiNi x Mn y Co1−x−y O2, x ≥ 0.5) have been accredited for their benefits in enhanced capacity, high working voltage, and low manufacturing cost. The high Ni content is accountable for the exceptional capacity but the utilization in the commercialized LIBs is mired by their electrochemical cycling issues like capacity fading, voltage decay, and safety hazard. To overcome these obstructions, a variety of methodologies have been adopted like doping, coating, and comodification of these cathode materials. An inclusive study of Ni‐rich cathode materials, their degradation mechanism, and the strategies is conferred, which have been employed in recent years to overcome the challenges faced by these materials in their commercialization. Ni‐rich cathode materials with high voltage platform (≥3.5 V) and capacity (>200 mAh g−1) have acquired immense consideration as cathode materials for lithium‐ion batteries. An inclusive analysis of Ni‐rich layered oxides regarding their development, structure, composition, degradation mechanism, and strategies used for the enhanced electrochemical performance of these materials is provided.