Aluminum and polyanion-doping to improve structural and moisture stability of Ni-rich layered oxides for lithium-ion batteries.

ABSTRACT: Ni-rich layered materials LiNi_0.8Co_0.1Mn_0.1O₂ attracts extensive interest to build high-performance lithium-ion batteries, but ground challenges, e.g., unfavorable phase transfer and interfacial parasitic reactions during cycling, especially after being exposure to the air for a long time, greatly limit their practical utilization. Here, we prove that those issues of Ni-rich layered materials can be alleviated by concurrently incorporating the Al³⁺ and PO₃^4-, and conduct corresponding comprehensive studies to explore mechanisms of the enhanced electrochemical performances. It is suggested that the phase transition (H2 to H3) that related to the lattice contraction can be suppressed after Al³⁺ and

SUBMITTER: Mo Y 

PROVIDER: S-EPMC11019666 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature