Method for producing nickel hydroxide

Details Method for producing nickel hydroxide Method for producing nickel hydroxide

C - Chemistry, Metallurgy

01

G

23/271

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

Patent

CA 1151846

ABSTRACT OF THE DISCLOSURE A nickel hydroxlde precipitated from nickel-salt solutions acquires, as an active electrode material for alkaline batteries, a highly favourable specific capacity and a reduced tendency to swelling, as a result of a special drying process which is carried out in two stages. In the first stage, using temperatures between 40 and, at the most 80°C, the water content is reduced to a residual humidity of about 10% by weight and then final drying is carried in a second stage at temperatures between 100 and 160°C thereby greatly reduc- ing recrystallization during the first stage and not affecting the capacity of the compound during high temperature drying in the second stage.

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