Cathode material for lithium secondary battery and method...

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

H - Electricity

01

M

H01M 4/32 (2006.01) C01G 53/00 (2006.01) C01G 53/04 (2006.01) H01M 4/52 (2006.01)

Patent

CA 2126883

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 haying .alpha.-NaFeO2 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.

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