Alkali metal lithium doping promotes the high stability and ionic kinetics of cathode materials for sodium-ion batteries.

ABSTRACT: Layered transition metal oxides for sodium-ion batteries are regarded as the most promising cathode materials for commercialization owing to their high theoretical specific capacity, high rate performance, and low cost. However, their drawbacks, such as unfavorable phase transitions, Na⁺/vacancy disorder, and slow dynamics, seriously hinder their further practical applications. In this work, we prepared a P2-Na_0.67Ni_0.1Co_0.1Mn_0.8O₂ cathode with a heteroatom-substitution doped at the alkali metal position. The unfavorable phase transition was suppressed to a certain extent, and the order of Na⁺/vacancy was optimized. The initial discharge-specific capacity of the prepared [Na_0.57Li_0.1]Ni₀

SUBMITTER: Shu W 

PROVIDER: S-EPMC11838018 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature