Inorganic Chemistry, Год журнала: 2024, Номер 63(21), С. 9864 - 9876
Опубликована: Май 17, 2024
Rechargeable aqueous zinc-ion batteries (RAZIBs) have received extensive attention because of their advantages low cost, high safety, and nontoxicity. However, problems such as dissolution the active cathode material, dendrites/passivation zinc anode, slow reaction kinetics hindered further applications. In this work, a crystalline/amorphous composite-type material composed crystalline MnCO3 amorphous MnOx was prepared used for RAZIBs. The MnCO3@amorphous (MnCO3@A-MnOx) composite possesses merits both pure phase MnOx, which can deliver better electrochemical performance than corresponding single component in repeated cycles. addition, undergoes complex transition to MnO2 during first charge process, providing with stable structure additional capacity. measurement results indicate that MnCO3@A-MnOx electrode display reversible discharge capacity at 0.1 A g–1, excellent rate 5.0 long cycling stability over 2000 cycles, showing great potential high-performance
Язык: Английский