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Super Battery
Anode
Metallic Zn has been considered an ideal anode material due to its high theoretical capacity, nontoxicity, abundance, and low cost.
The performance of a zinc electrode is limited by three major phenomena that occur during operation in a zinc-air battery: 1. passivation, 2. dendrite, 3.HER
Anode interface modification.
Anode interface modification (like coating) is an effective strategy to overcome the major challenges of Zn electrodes.
Coatings applied to the surface of zinc electrodes or to the zinc powders comprising the zinc electrode have also been proposed as a strategy to improve cycle life.
Why we choose ZrO2
ZrO2 is a typical ceramic insulating material with high dielectric constant, low conductivity, good chemical stability and corrosion resistance at low temperature.
1. Control of Nucleation Sites for Zn2+: The ZrO2 coating provides controllable nucleation sites for Zn2+ and facilitates fast Zn2+ transportation.
2. Prevention of Hydrogen Evolution Reaction (HER): ZrO2 coating effectively prevents corrosion of zinc anodes and densification of zinc oxide
