Phase transformation mechanism of MnCO₃ as cathode materials for aqueous zinc-ion batteries.

ABSTRACT: Aqueous rechargeable zinc-ion batteries (ZIBs) have been given more and more attention because of their high specific capacity, high safety, and low cost. The reasonable design of Mn-based cathode materials is an effective way to improve the performance of ZIBs. Herein, a square block MnCO₃ electrode material is synthesized on the surface of carbon cloth by a one-step hydrothermal method. The phase transition of MnCO₃ was accompanied by the continuous increase of specific capacity, and finally maintained good cycle stability in the charge-discharge process. The maximum specific capacity of MnCO₃ electrode material can reach 83.62 mAh g^-1 at 1 A g^-1. The retention rate of the capacity can reach 85.24% after 1,500 cycles compared with th

SUBMITTER: Zheng J 

PROVIDER: S-EPMC9388732 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature