Improving Electro-Deposition of Manganese Oxide Cathode by Chloride Anions for Ultra-Thin Flexible Zinc Battery

To simplify the fabrication process of flexible and micro-size rechargeable batteries, the use of thin-printed carbon layers without anode or cathode for electrolytic batteries was demonstrated here. Batteries with ZnCl
2
/MnCl
2
electrolytes showed much better performance than ZnSO
4
/MnSO
4
cases. The effects of electro-depositing each electrode and the components of electrolytes were investigated. The anions of electrolytes and the efficiency of electro-depositing cathodes are the key factors in our battery system.