From Failure to Design: Modulating Phase Transitions and Oxygen Release in Ni‐Rich Cathodes

ABSTRACT Ni‐rich layered oxides (LiNi x Co y Mn z O 2 , x + y + z = 1, x ≥ 0.8) are among the most promising cathode materials for high‐energy‐density lithium‐ion batteries (LIBs); however, their structural instability during cycling significantly impedes large‐scale commercialization. Conventional approaches have primarily aimed at suppressing phase transitions and oxygen vacancies (OVs), as these have long been regarded as detrimental owing to their close association with voltage decay, capacity fading, and interface degradation. In contrast, this review highlights a paradigm shift from conventional suppression strategies to the controlled utilization of these structural features. Specifically, localized…

• CP
  China Postdoctoral Science Foundation

  Award: 2025M770223