The aim is to develop a high-performance cathode for aqueous zinc-ion batteries that addresses common issues such as manganese dissolution and slow Zn2+ kinetics.
Synthesis of a ZnCo-MnO nanoporous carbon composite from a bimetallic metal-organic framework.
Engineering of a ZIF-8 protective layer on the zinc anode to minimize dendrite formation.
Evaluation of electrochemical performance through capacity and cycling stability tests.
The ZnCo-MnO@NPC cathode delivers 281.3 mAh g−1 at 0.1 A g−1.
After 3500 cycles at 2.0 A g−1, the cell retains 98.7% of its initial capacity.
Demonstrates effective suppression of Jahn–Teller distortion and improved ionic transport.