A stable tunnel-type NaGe 3/2 Mn 1/2 O 4 anode for Na-ion batteries.
Ying CuiRuie ZhangXiaofeng LeiXizheng LiuPublished in: RSC advances (2020)
Tunnel-type NaGe 3/2 Mn 1/2 O 4 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 Na 4 Ge 9 O 20 (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.