Enhanced Zn ion storage performance of a polypyrrole-coated Mn₃O₄ composite electrode

Abstract

Aqueous zinc ion batteries (AZIBs) possess significant application potential in energy storage field due to their large capacity, low redox potential and high safety. Among various materials, Mn3O4 electrode has...

Construction of a high-performance flexible hybrid capacitor at extreme working temperature (−20 °C)

“…Generally, bimetallic transition metal oxide possesses distinct crystalline characteristics, highly active redox reactions and large specific surface area. 16–18 In this regard, the ZnCo 2 O 4 material presents high theoretical capacitance in the redox reaction process. 19,20 Corresponding metal sulfides possess high electrical conductivity due to the lower electronegativity of S compared with the O element.…”