POSITIVE ELECTRODE FOR ALKALINE STORAGE BATTERY AND ALKALINE STORAGE BATTERY

摘要

Disclosed is a low-cost positive electrode for alkaline storage batteries which has good current collecting properties for a long time. Also disclosed is a low-cost alkaline storage battery which has good charge/discharge efficiency for a long time. Specifically disclosed is a positive electrode for alkaline storage batteries comprising a positive electrode plate and a positive electrode active material. The positive electrode plate is composed of a resin skeleton made of a resin and having a three-dimensional network structure and a nickel coating layer made of nickel and covering the resin skeleton, and has a pore section wherein a plurality of pores are three-dimensionally connected. The positive electrode active material includes nickel hydroxide particles and is filled into the pore section of the positive electrode plate. The average thickness of the nickel coating layer is not less than 0.5 µm and not more than 5 µm, and the ratio of the nickel coating layer relative to the positive electrode plate is not less than 30% by weight and not more than 80% by weight. The amount of the positive electrode active material filled in the pore section is not less than 3 times and not more than 10 times the weight of the positive electrode plate.