New high conductive compound having potassium nickel fluorite structure for electrode for vehicle electrochemical cell

摘要

A high conductive compound having potassium nickel fluorite structure is new. A high conductive compound having potassium nickel fluorite structure of ABCO(x-delta))Hal(y-epsilon) is new. A and B = Na, K, Rb, Ca, Ba, La, Pr, Sr, Ce, Nb, Pb, Sm or Gd; C = Cu, Mg, Ti, V, Cr, Mn, Fe, Co, Nb, Mo, W or Zr, and/or Pt, Ru, Ir, Rh, Pd or Ni; x+y = 4; delta and epsilon = -0.7 to +0.7; Hal = F, Cl, Br or I. A and B are not identical; and A and C are not both Nb. Independent claims are included for the following: (a) A method for preparing an electrode for electrochemical cell comprising providing substrate and forming a continuous layer of material comprising inventive compound with high conductivity for electrons on the substrate by applying a mixture of material, binders and solvent, removing the solvent, and heat treating if necessary;and (b) An electrochemical cell having at least two electrodes comprising the inventive compound, and electrolyte.