Transition-metal ions intercalation chemistry enabled the manganese oxides-based cathode with enhanced capacity and cycle life for high-performance aqueous zinc-ion batteries.

ABSTRACT: Aqueous zinc-ion batteries (AZIBs) employing mild aqueous electrolytes are recognized for their high safety, cost-effectiveness, and scalability, rendering them promising candidates for large-scale energy storage infrastructure. However, the practical viability of AZIBs is notably impeded by their limited capacity and cycling stability, primarily attributed to sluggish cathode kinetics during electrochemical charge-discharge processes. This study proposes a transition-metal ion intercalation chemistry approach to augment the Zn²⁺ (de)intercalation dynamics using copper ions as prototypes. Electrochemical assessments reveal that the incorporation of Cu²⁺ into the host MnO₂ lattice (denoted as MnO₂-Cu) not only enhances the capacity performance owi

SUBMITTER: Zhao H 

PROVIDER: S-EPMC10966430 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature