Preparation of battery cell current collectors

Details Preparation of battery cell current collectors Preparation of battery cell current collectors

H - Electricity

01

M

H01M 2/30 (2006.01) H01M 2/02 (2006.01)

Patent

CA 2273590

At least portions of steel battery casings or other current collectors in contact with a manganese dioxide layer in a zinc-manganese dioxide alkaline cell present to that layer surfaces which have been burnished in the presence of particles of a passivity inducing metal such as nickel. Typically, the particles are transferred from a plating layer on a surface of low carbon steel forming the casing by a machining operation which cuts into the surface to increase its surface area whilst burnishing the cut surfaces.

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