Modulating residual ammonium in MnO<sub>2</sub> for high-rate aqueous zinc-ion batteries
Yancheng Fu, Caoer Jia, Zihan Chen, Xiaosheng Zhang, Shuaijie Liang, Zhen Zhai, Jinzhou Chen, Xuying Liu, Linlin Zhang
Abstract
A high-rate aqueous zinc-ion battery is assembled by β-MnO 2 electrode with residual NH 4 + . The NH 4 + could stabilize the chemical structure of the distorted Mn 3+ O 6 by forming Mn–O⋯H bond and serve as a “retractable spring” to avoid tunnel collapse.
Topics & Concepts
Materials scienceCathodeAqueous solutionDissolutionManganeseElectrolyteMicrostructureResidualChemical engineeringTernary operationElectrochemistryConductivityElectrodeMetallurgyChemistryPhysical chemistryComputer scienceProgramming languageEngineeringAlgorithmAdvanced battery technologies researchAdvancements in Battery MaterialsAdvanced Battery Materials and Technologies