Yueqi Kong

Mar 15, 2024 | onlinelibrary.wiley.com | Nanotechnology The |Yueqi Kong |Cheng Tang |Shuimei Chen

1 Introduction Manganese dioxides (MnO2) possess favorable characteristics as cathode materials in rechargeable batteries due to their high redox potential and the ability to undergo two-electron transfer in Mn4+/Mn2+ reactions, resulting in high specific capacity (theoretically 616 mAh g−1) and high energy density.[1-3] Among various MnO2 polymorphs, δ-MnO2, with its layered crystalline structure and large interlayer spaces of ≈0.7 nm, is particularly well-suited for efficient ion storage...