Paper elimination in the production of battery plates
AssigneeTeck Cominco Metals Ltd.
InventorsJohn V. Marlow, Thomas Lester Oswald, Rajindra Singh, Albert M. Vincze
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Abstract
A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices such as roll-mounted die-cutters to a predetermined temperature range of at least about 150° C., preferably about 160 to 300° C., and more preferably about 180 to 210° C., eliminates sticking of the paste on the pasted metal mesh strip to the cutting devices and obviates the need for the paper barriers.
Claims21
A method for cutting pasted expanded, punched or cast metal mesh strip into battery plates for lead acid batteries with a cutting device comprising heating said cutting device to a temperature above a predetermined minimum temperature whereby the paste does not adhere to the heated cutting device.
An apparatus for continuously cutting pasted, expanded, punched or cast lead or lead alloy mesh strip into battery plates comprising a pair of opposed rolls having cutting blades on at least one roll for cutting the pasted lead or lead alloy mesh strip into equal lengths, means for journalling said rolls in operative abutment with each other in a supporting frame, conveying means for continuously passing the pasted lead or lead alloy mesh strip between the opposed rolls, and heating means for heating the cutting blades and opposed rolls to a temperature above about 150° C.
Dependencies are inferred from the claim text.