Cathode active material for metal of CFX battery

Details Cathode active material for metal of CFX battery Cathode active material for metal of CFX battery

1986-11-20

1988-04-12

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, H01M 436, H01M 1040

Patent

active

047374233

ABSTRACT:
Improved fluorinated carbon made from an amorphous carbon or heat treated amorphous carbon having a lattice constant (d.sub.002) of 3.37A or greater for use as a positive electrode of a battery is provided. Such improved fluorinated carbon has low free oxidizing power, high utility factor and high capacity upon discharge in a Li/CF.sub.x battery. The free oxidizing power is found to be dependent on reaction temperature; the higher the fluorination temperature the lower the free oxidizing power. Low free oxidizing power is obtained at reaction temperatures of at least 460.degree. C. Residual free oxidizing power can be further reduced by washing with an alkanol. Such alkanol wash can also be used to reduce free oxidizing power in fluorinated carbons prepared at lower temperatures.

REFERENCES:
patent: 4578327 (1986-03-01), Saito et al.

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