| Abstract Scope |
A rechargeable zinc flow battery, especially zinc/air battery, is one of the most promising candidates for a large-scale of stationary energy storage system lined to solar or wind power generation, because there are some merits such as a high theoretical energy density, low cost of zinc, an air-breathing cathode, and a high safety of non-flammable aqueous electrolyte. The flow of the electrolyte, which is KOH solutions, is believed to be effective to suppress the generation of zinc dendrite and non-uniform distribution of zinc and zinc oxide, while there has been still little information on the effects of the charge-discharge conditions and the dimensions, design, and flow parameters of the cell on the morphology during zinc deposition and dissolution. This paper reports the results on the operando visualization of the zinc anode during charge and discharge at different operating conditions of current density, capacity density, and flow rate. |