| abstract |
The present invention relates to the use as a pseudocapacitive electrode material for supercapacitors, of a metal oxide of formula n n A 1-x A' x Co 1-y B y O 3 , n n n Where 0≤x<1, 0≤y<0.5, nsaid metal oxide presents a perovskite crystal structure, A represents a rare earth metal, A' represents an alkaline earth metal, B represents a transition metal, and A, A' and B may be mixtures of metals, wherein said material is implemented on an electrode comprising a carbonaceous material and said material is loaded on said carbonaceous material with a loading mass greater than 5 mg/cm 2 . nThe present invention further relates to pseudocapacitive electrodes for supercapacitors, wherein the material of said pseudocapactive electrode comprises a pseudocapacitive electrode material as defined above, to a supercapacitor comprising at least said pseudocapacitive electrode. nLastly, the present invention relates to the use of a pseudocapacitive electrode as defined above for manufacturing a supercapacitor. |