A stable tunnel-type NaGe_3/2Mn_1/2O₄ anode for Na-ion batteries.

ABSTRACT: Tunnel-type NaGe_3/2Mn_1/2O₄ was fabricated for anode of sodium ion batteries, delivering a discharge capacity of 200.32 mAh g^-1 and an ultra-low potential platform compared with that of pure Na₄Ge₉O₂₀ (NGO). The results of X-ray photoelectron spectroscopy (XPS) demonstrate that Ge redox occurs, and partial substitution of Mn effectively improves the Na-storage properties compared to those of NGO.

SUBMITTER: Cui Y 

PROVIDER: S-EPMC9048186 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature