Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making articles of indefinite length
Patent
1988-04-25
1989-04-11
Lechert, Jr., Stephen J.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making articles of indefinite length
419 8, 419 23, 419 30, 419 31, 419 33, 419 38, 419 44, 419 53, 419 54, B22F 500
Patent
active
048204811
ABSTRACT:
An improved method for the continuous fabrication of metal-hydride, electrochemical, hydrogen storage alloy, negative electrodes for use in rechargeable nickel metal hydride cells. The improved method comprises the steps of providing measured amounts of powdered metal hydride electrochemical hydrogen storage alloy material and disposing said material upon a continuous wire mesh screen substrate. Thereafter, the powdered metal hydride electrochemical hydrogen storage alloy and wire mesh screen are subjected to a compaction process wherein they are rolled and pressed so as to form a single integral electrode web which is subsequently exposed to a high temperature sintering process in a chemically inert environment. The sintering process is designed to drive off excess moisture in the material while discouraging oxidation of the electrode web and set the electrode web state of charge.
REFERENCES:
patent: 4613369 (1986-09-01), Koehler
patent: 4670214 (1987-06-01), Magnuson et al.
Fetcenko Michael A.
Lijoi Andrea L.
Nuss Mark A.
Wolff Merle
Energy Conversion Devices Inc.
Goldman Richard M.
Lechert Jr. Stephen J.
Massaroni Kenneth M.
Siskind Marvin S.
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