| abstract |
(57) [Summary] [PROBLEMS] The discharge reserve of a negative electrode is controlled to an appropriate amount. Provided is a paste-type positive electrode for obtaining a high-capacity, long-life, low-cost alkaline storage battery. SOLUTION: A first active material comprising X parts by weight of nickel hydroxide particles and a weight percent of cobalt hydroxide oxyhydroxide of nickel hydroxide adhered to the surface thereof, and Y parts by weight of which the oxidation number of nickel is α B% by weight of nickel oxyhydroxide particles and nickel oxyhydroxide attached to the surface A second active material comprising cobalt oxyhydroxide of 2.5 ≦ α <3.0, 0.01 ≦ (aX / 100 + bY /100)/(X+Y)≦0.20, 0 <b ≦ a ≦ 10 Or 0 = b <a ≦ 10, and 2.1 ≦ (2X + α Y) / (X + Y) <2.2, a paste-type positive electrode for an alkaline storage battery. |