Patent ID: 11909028
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 18:
19. A cathode for a metal-air battery, the cathode comprising:
a mixed conductor; and
first pores having a size of about 1 micrometer or greater,
wherein an amount of the first pores is about 30 volume percent to about 95 volume percent, with respect to a total volume of pores in the cathode, and
a total porosity of the cathode is about 70 percent to about 95 percent, based on a total volume of the cathode,
wherein the mixed conductor is a perovskite compound represented by Formula 5:

LixAlyG1zO3−δ  Formula 5

wherein, in Formula 5,
Al is at least one of La, Ce, Pr, Gd, Ca, Sr, or Ba,
G1 is at least one of Mn, Ru, Cr, Co, Ir, Fe, Pd, Pb, Rh, Sn, V, Re, Ge, W, Mo, Hf, or Bi, and 0.2<x≤0.5, 0.4<y≤0.7, 0<x+y<1, 0.8<z≤1.2, and 0≤δ≤1, and
wherein the cathode comprises about 70 parts to about 100 parts by weight of the mixed conductor, with respect to 100 parts by weight of the cathode.