Manganese Dioxide (α, β, γ, δ-MnO2) Powder for Aqueous Zn-Ion Battery Cathode, 50 or 100 g/bottle, CZIBCMnO2
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Manganese Dioxide (MnO2) is the most established and widely used cathode material for both primary (non-rechargeable) and rechargeable Aqueous Zinc-Ion Batteries (AZIBs) due to its low cost, abundance, environmental friendliness, and high theoretical capacity.
MnO2 exists in various crystalline forms, or polymorphs, such as α, β, γ, δ-MnO2, which have different structures and electrochemical performances.
| Part Number |
CZIBCMnO2 (C-ZIB-C-MnO2) |
| Chemical Formula |
α, β, γ, δ-MnO2 |
| Purity |
>99.7% |
| Mesh Size |
~74 um |
| First Discharging Capacity |
~150 mAh/g (0.2 C) 
Electrode: γ-MnO2 and Zn foil
Electrolyte: 2 M ZnSO4 |
| Package Grade |
100 g/bottle for α, β, γ-MnO2 50 g/bottle for δ-MnO2 |
Notes: (1) Please store the MnO2 powder in a dry area (glovebox is preferred); (2) The battery powder is highly recommended to be dried at 80-100°C in a vacuum oven for 6-12 h before use.
References:
- T. Hwang, et al. Reaction Mechanisms and Improvement of α-MnO2 Cathode in Aqueous Zn-Ion Battery, Chem. Mater. 2025, DOI: acs.chemmater.4c03176.
- N. Zhang, et al. Rechargeable aqueous zinc-manganese dioxide batteries with high energy and power densities, Nature. Communications, 2017, 8, 405.
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M. H. Alfaruqi, et al. Electrochemically Induced Structural Transformation in a γ-MnO2 Cathode of a High Capacity Zinc-Ion Battery System, Chem. Mater. 2015, 27, 3609–3620.
