P2-Na2/3Mn0.66Ni0.21Mg0.05Al0.03X0.0225O2 (X = Zr, Ce) as high performance cathode materials for sodium-ion batteries

• Published in: Ionics Vol. 26; no. 2; pp. 727 - 734
• Main Authors: Ke, Chunyu, Fu, Fang, Zheng, Jianan, Yang, Weihua
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2020; Springer Nature B.V
• Subjects: Cathodes; Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Electrochemical analysis; Electrochemistry; Electrode materials; Energy Storage; Lithium; Lithium-ion batteries; Optical and Electronic Materials; Original Paper; Rechargeable batteries; Renewable and Green Energy; Sodium-ion batteries; Storage batteries; Zirconium; Cathode material; Multiple elements; P2-type layered oxide; Sodium-ion batteries
• ISSN: 0947-7047; 1862-0760
• DOI: 10.1007/s11581-019-03216-w

As an alternative to lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) have a great potential for large-scale energy storage. Here, new component P2-Na 2/3 Mn 0.66 Ni 0.21 Mg 0.05 Al 0.03 X 0.0225 O 2 (X = Zr, Ce) cathode materials were designed and synthesized by co-precipitation method. The cathode materials of new component exhibit excellent electrochemical properties due to the new materials concentrate on the advantages of the individual elements. The as-prepared materials display excellent cycling stability (P2-Na 2/3 Mn 0.66 Ni 0.21 Mg 0.05 Al 0.03 Zr 0.0225 O 2 delivers a reversible capacity of 89.3 mAh g −1 and P2-Na 2/3 Mn 0.66 Ni 0.21 Mg 0.05 Al 0.03 Ce 0.0225 O 2 shows the capacity of 90.2 mAh g −1 over 300 cycles at a 1 C rate). The new component materials also indicate extremely high rate capability (~ 60 mAh g −1 after 1000 cycles at a 10 C rate).