An interactive dual energy storage mechanism boosts high-performance aqueous zinc-ion batteries.

ABSTRACT: Organic materials are promising cathodes for aqueous zinc-ion batteries (AZIBs) due to their cost-effectiveness, environmental friendliness, and tunable structures. However, the energy density of AZIBs remains limited by the inherently low capacity and output voltage of organic cathode materials. To address this challenge, we develop a Mn ion-doped polyaniline (PAM) by harnessing the joint merits of the highly reversible doping process of the conjugated backbone and the unique dissolution-deposition behavior of Mn²⁺ in ZnSO₄ electrolyte. The incorporation of Mn²⁺ into the PANI backbone facilitates the stabilization of PAM at high potentials by lowering the lowest unoccupied molecular orbital (LUMO) energy level, resulting in enhanced output voltage and cycl

SUBMITTER: Gong S 

PROVIDER: S-EPMC11575571 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature