Co-MnO₂ Nanorods for High-Performance Sodium/Potassium-Ion Batteries and Highly Conductive Gel-Type Supercapacitors.

ABSTRACT: Manganese dioxide (MnO₂ ) is considered as a strong candidate in the field of new-generation electronic equipment. Herein, Co-MnO₂ has excellent electrochemical properties in tests as the cathode electrode of sodium-ion batteries and potassium-ion batteries. The rate performance remains at 50.2 mAh g^-1 at 200 mA g^-1 for sodium-ion batteries. X-ray diffraction (XRD) is utilized to evaluate the crystal structure transition from Co_0.2 -MnO₂ to NaMnO₂ with discharge to 1 V, proving that Co-doping does indeed facilitate the acceleration of ion transport and support layer spacing to stabilize the structure of MnO₂ . Subsequently, highly conductive (0.0848 S cm^-1 ) gel-type supercapacitors are prepa

SUBMITTER: Han J 

PROVIDER: S-EPMC8948560 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature