Chargeable alkali Zn-Mn cell

The utility model belongs to an alkali Zn-Mn cell, in particular to a novel chargeable cell which is developed on the foundation of a disposable alkaline Zn-Mn cell. The utility model is mainly characterized in that a positive pole is composed of three electrolytic manganese dioxide powder rings in overlapping. A metal ring is arranged between every two electrolytic manganese dioxide powder rings. A bronze needle and a copper sheet are connected and used as a current collector of negative pole. A composite membrane is used as an isolation membrane between the positive pole and the negative pole. The utility model has the advantages of low cost, energy saving, few pollution, large capacity, high energy ratio, stable discharge voltage. In addition, the chargeable alkali Zn-Mn cell can be repeatedly charged and discharged more than one hundred times.