Use of Hydrogel Electrolyte in Zn-MnO₂ Rechargeable Batteries: Characterization of Safety, Performance, and Cu²⁺ Ion Diffusion.

ABSTRACT: Achieving commercially acceptable Zn-MnO₂ rechargeable batteries depends on the reversibility of active zinc and manganese materials, and avoiding side reactions during the second electron reaction of MnO₂. Typically, liquid electrolytes such as potassium hydroxide (KOH) are used for Zn-MnO₂ rechargeable batteries. However, it is known that using liquid electrolytes causes the formation of electrochemically inactive materials, such as precipitation Mn₃O₄ or ZnMn₂O₄ resulting from the uncontrollable reaction of Mn³⁺ dissolved species with zincate ions. In this paper, hydrogel electrolytes are tested for MnO₂ electrodes undergoing two-electron cycling. Improved cell safety is achieved because t

SUBMITTER: Cho J 

PROVIDER: S-EPMC10934817 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature