Yolk-shell Co-glycerate@Fe-Co Prussian blue analogue spheres for high-performance lithium-ion batteries

• Published in: Materials letters Vol. 320; p. 132358
• Main Authors: Chen, Y.X., Yuan, Y.F., Mo, C.L., Du, P.F., Guo, S.Y.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-08-2022; Elsevier BV
• Subjects: Anodes; Co glycerate; Cobalt; Composite materials; Discharge; Electrode materials; Energy storage and conversion; Iron; Lithium-ion batteries; Materials science; Pigments; Potassium ferricyanide; Rechargeable batteries; Lithium-ion batteries; Co glycerate; Composite materials; Energy storage and conversion
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2022.132358

•Yolk-shell Co-glycerate@Fe-Co Prussian blue analogue spheres.•Co-glycerate reversibly stores Li-ions.•High specific capacity and rate performance, stable cycling performance.
Yolk-shell spheres of Co-glycerate@Fe-Co Prussian blue analogue are synthesized by the etching reaction of water towards Co-glycerate spheres and coordination reaction of K3[Fe(CN)6] and Co ions. Co-glycerate@Fe-Co Prussian blue analogue exhibits high reversible capacity and good cycling performance, as anode material of lithium-ion batteries. The discharge capacity can stabilize at about 1100 mAh g−1 at 0.2 A g−1 and 600 mAh g−1 at 1 A g−1. Even at 5 A g−1, discharge capacity still stabilizes at about 820 mAh g−1. The excellent lithium storage performance indicates that it is a promising anode material for lithium-ion batteries.