P3-type layered K0.48Mn0.4Co0.6O2: a novel cathode material for potassium-ion batteries.
- Resource Type
- Article
- Authors
- Sada, Krishnakanth; Barpanda, Prabeer
- Source
- Chemical Communications. 2/21/2020, Vol. 56 Issue 15, p2272-2275. 4p.
- Subject
- *ELECTRIC batteries
*MATERIALS
*CATHODES
*ELECTRIC potential
*OXIDES
- Language
- ISSN
- 1359-7345
P3-type layered K0.48Mn0.4Co0.6O2 was synthesized using a solid-state method. By stabilising into a rhombohedral structure [s.g. R3m (#160)], it delivers a reversible capacity of 64 mA h g−1 with a nominal voltage of ∼3.0 V (vs. K/K+) and it has good cycling stability. It involves a solid-solution redox mechanism, and forms an economical and stable oxide insertion material for potassium-ion batteries. [ABSTRACT FROM AUTHOR]