| 摘要 |
Disclosed in this invention is an active material for a cathode of a nickel cell, nickel-metal hydroxycarbonate having the formula, Ni1-2xM2x(OH)2(CO3)x(0<x≤0.05), wherein M is a trivalent metal, the average diameter of the active material is 8 SIMILAR 20 mu m, tapping density thereof is more than 1.6g/cm<3>, lattice constant of C axis thereof is 4 SIMILAR 6 ANGSTROM , lattice constant of A axis thereof is 2.5 SIMILAR 2.7 ANGSTROM , the shape of thereof is globular. The active material increases a cell's capacity by increasing the availability of the active material, make high-rate charging-discharging cycles possible and have a lifetime more than two times than the active material using ordinary nickel hydroxide. <IMAGE> |
