In-situ positive electrode-electrolyte interphase construction enables stable Ah-level Zn-MnO₂ batteries.

ABSTRACT: Engineering the formulation of an Mn-based positive electrode is a viable strategy for producing an efficient aqueous zinc-ion battery. However, Mn dissolution and the byproducts result in capacity fading, thus limiting its electrochemical performances. To solve the undesirable issues, the concept of in-situ forming the positive electrode/electrolyte interface on the commercial MnO₂ is designed, with the help of introducing the Dioctyl Phthalate into the ZS-based electrolyte (2 M ZnSO₄ + 0.2 M MnSO₄), designated as ZS-DOP electrolyte. An advanced three-dimensional chemical and imaging analysis on a model material reveals the dynamic formation of positive electrode/electrolyte interface. The formed organic interface effectively suppresses the corrosion of th

SUBMITTER: Lai G 

PROVIDER: S-EPMC11880571 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature