Metal working – Method of mechanical manufacture – Electrical device making
Patent
1987-01-14
1987-11-24
Skapars, Anthony
Metal working
Method of mechanical manufacture
Electrical device making
204 21, 419 2, 75 20F, 429228, H01M 418
Patent
active
047079118
ABSTRACT:
Porous electrodes are provided for lead-acid storage batteries without supporting plates or grids. The electrodes are porous, self-supporting, structurally integral and electrically continuous. Lead-acid batteries incorporating such electrodes exhibit improved performance characteristics as compared to conventional lead-acid batteries. The electrodes are made by forming a molten mixture of a metal (e.g. lead) and a pore forming component (e.g. cadmium), cooling and forming the molten mixture into a solid electrode with the pore forming component distributed therethrough, removing the pore forming component from the solid electrode to leave a network of voids defining the pores, and oxidizing the metallic walls within the pores to form a coating of electrochemically active material (e.g., lead dioxide) on the walls within the pores.
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Vinal, Storage Batteries, John Wiley and Sons, Inc., Third Edition, 1940, pp. 40-41.
Kober Frederick P.
Montefusco Oscar V.
PolyCrystal Technologies Corp.
Skapars Anthony
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