| abstract |
The present invention relates to the field of alkaline electrochemical generators, and more particularly to a secondary battery. More precisely, the present invention, a) an electrolytic solution which is an alkaline aqueous solution having a molar concentration of 4 M to 15 M of hydroxyl ions, including a soluble silicate having a concentration expressed as silicon dioxide (SiO 2 ) of 0.15 g/l to 80 g/l; And b) hafnium nitride and/or hafnium carbide and/or magnesium carbide and/or magnesium nitride and/or magnesium silicate and/or niobium carbide and/or niobium nitride and/or titanium carbide and/or titanium nitride and/or titanium silicate and /Or vanadium nitride and/or Zinc electrode comprising a conductive ceramic at least partially composed of two overlapping carbides and/or nitrides of any of hafnium, magnesium, niobium, titanium and vanadium It relates to a zinc electrode secondary electrochemical generator differentiated by including. |