Cathode material for lithium secondary battery and method for pr

Details Cathode material for lithium secondary battery and method for pr Cathode material for lithium secondary battery and method for pr

1997-03-28

1998-10-20

Bos, Steven

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

429223, C01G 5300, H01M 432

Patent

active

058242848

ABSTRACT:
The invention provides a cathode material for lithium secondary battery containing lithiated nickel dioxide having excellent charge/discharge characteristics and a process for producing the lithiated nickel dioxide, and a lithium secondary battery. That is, the cathode material for lithium secondary battery contains lithiated nickel dioxide having .alpha.-NaFeO.sub.2 structure and shows a coulomb efficiency of 80% or higher at the first charging and discharging, and the process for producing lithiated nickel dioxide comprises dispersing a nickel compound in a lithium nitrate solution, then evaporating the solvent to obtain a mixture of lithium nitrate and the nickel compound and firing the mixture in an atmosphere containing oxygen.

REFERENCES:
patent: 4567031 (1986-01-01), Riley
patent: 5264201 (1993-11-01), Dahn et al.
Ohzuku, T. et al, "An Approach . . . of LiNiO.sub.2 ", The 33.sup.rd Battery Meeting, 1992, no month, pp. 13-14.

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