Alkaline accumulator with medium length carbon fibers

An alkaline accumulator for storing electrical energy, comprises a sealed housing and separator between a negative electrode and a positive electrode with a support of nickel (Ni) (sponge) strip or Ni-plated (un)perforated steel strip and an active paste (I) containing mainly Ni hydroxide plus cobalt (Co) hydroxide or monoxide and a binder. (I) contains 9-20 wt.% graphite mixture with over 70% graphite fibers of length 10-35 mu m and diameter 3-8 mu m as conductor.