Unveiling the Charge Storage Mechanism of High-Performance LiV₃O₈ Cathode for Mn²⁺/H⁺ Hybrid Batteries.

ABSTRACT: Mn-based energy storage systems are gaining attention as promising candidates for next-generation aqueous batteries, owing to their higher theoretical energy density and capacity compared to conventional Zn-based systems. This advantage is primarily attributed to the lower standard redox potential of the Mn anode (-1.19 V vs SHE) relative to that of Zn (-0.76 V vs SHE). In this study, an Mn²⁺/H⁺ hybrid aqueous battery system utilizing LiV₃O₈ is presented as the cathode material, which delivers a high specific capacity of 204.58 mAh g^-1 and excellent capacity retention of 76.2% after 7,000 cycles. The charge storage mechanism of LiV₃O₈ is thoroughly investigated through structural characterization, as well as diffusion pathway and energy barrier analyses. Proton insert

SUBMITTER: Pyun J 

PROVIDER: S-EPMC12332808 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature