High Capacity and Fast Kinetics Enabled by Metal‐Doping in Prussian Blue Analogue Cathodes for Sodium‐Ion Batteries
Trakarn Yimtrakarn,
Yi‐An Lo,
Jakkraphat Kongcharoenkitkul
et al.
Abstract:Prussian blue analogues (PBAs) have gained tremendous attention as promising low‐cost electrochemically‐tunable electrode materials, which can accommodate large Na+ ions with attractive specific capacity and charge‐discharge kinetics. However, poor cycling stability caused by lattice strain and volume change remains to be improved. Herein, metal‐doping strategy has been demonstrated in FeNiHCF, Na1.40Fe0.90Ni0.10[Fe(CN)6]0.85·1.3H2O, delivering a capacity as high as 148 mAh g‒1 at 10 mA g‒1. At an exceptionall… Show more
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