High-Performance B-Doped Na_0.44MnO₂ Cathode Materials for Sodium-Ion Batteries.

ABSTRACT: Na_0.44MnO₂ (NMO) is a promising cathode material for sodium-ion batteries (SIBs) due to its unique tunnel structure and derived sodium storage property. In this study, we prepared the doped cathode material Na_0.44Mn_0.98B_0.02O₂(NMOB_0.02) and observed that introducing optimal B improves electrochemical stability and air stability. The prepared Na_0.44Mn_0.98B_0.02O₂ material releases an initial reversible specific capacity of 100.5 mAh g^-1 at 0.2 C (1 C = 120 mA g^-1). Compared with the undoped material, the capacity retention rate increases from 69.8 to 86.8% after 350 cycles at 1 C, and this parameter evaluated at 50 °C increases from 63.6 to 88.9% afte

SUBMITTER: Liu ZM 

PROVIDER: S-EPMC11923842 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature