Heat treatment of NiO.sub.x utilized in pressed nickel electrodes
AssigneeYardney Electric Corporation
InventorRonald G. Gunther
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Abstract
An improvement in the discharge capacity of pressed nickel electrodes which comprise a NiO.sub.x /Co/binder admixture pressed into a current collector is obtained by heating the NiO.sub.x to a temperature on the order of 125.degree. C. to 175.degree. C. either before or after incorporating the NiO.sub.x in the electrode.
Claims12
The method of making an improved pressed nickel electrode, said method comprising forming a dry admixture of the berthollide NiO.sub.x as the active electrode material, and a binder therefor, and pressing said admixture into a current collector, said method including the step of:
- heating said NiO.sub.x at a temperature between about 125.degree. C. and about 175.degree. C. for at least about 15 minutes.
The method of making an improved pressed nickel electrode comprising forming a dry admixture of the berthollide NiO.sub.x, a cobalt-containing member of the group consisting of the berthollide CoO.sub.x and Co(OH).sub.2 and a binder therefor, and pressing said admixture into a current collector, said method including the step of:
- heating said NiO.sub.x at a temperature between about 125.degree. C. for at least about 15 minutes without decomposing said Co(OH).sub.2.
Dependencies are inferred from the claim text.