Through adding assistant complexing agent and controlling initial current density, cathodic polarization was intensified in cyanide-free electrolyte.

It includes electrolyte membrane, silicone rubber seal ring, multihole anode plate, and free lay mode formed granules of catalyst layer between said electrolyte membrane and multihole plate.

Study on the Preparation of Manganese Dioxide Anode Material and Additives in the Electrolyte for Mercury-free Rechargeable Alkaline Manganese Dioxide Battery;