Method for the continuous fabrication of hydrogen storage alloy negative electrodes

Patent · Tue Apr 11 00:00:00 EDT 1989

OSTI ID:5982740

Wolff, M; Nuss, M A; Fetcenko, M A; Lijoi, A L

A method is described for substantially continuously fabricating a large area, metal hydride electrochemical hydrogen storage alloy negative electrode for use in a rechargeable nickel-metal hydride battery, the method comprising the steps of: providing a continuous, wire mesh screen substrate; providing a measured amount of powdered metal hydride electrochemical hydrogen storage alloy material; continuously disposing a layer of the hydrogen storage alloy material into contact with the wire mesh screen substrate, in a substantially inert atmosphere; compacting the hydrogen storage alloy material into the wire mesh screen so as to form a green deposit thereof; pre-heating the green deposit of hydrogen storage alloy wire mesh screen; sintering the green deposit of hydrogen storage alloy wire mesh screen in an anhydrous, substantially oxygen free inert atmosphere so as to liberate moisture therefrom; and cooling the sintered hydrogen stage alloy wire mesh screen in a controlled hydrogen atmosphere so as to impart a partial charge thereto.

• Assignee: Energy Conversion Devices Inc., Troy, MI
• Patent Number(s): US 4820481
• OSTI ID: 5982740
• Resource Relation: Patent File Date: Filed date 25 Apr 1988
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
08 HYDROGEN
ALLOYS
FABRICATION
ELECTRODES
HYDRIDES
HYDROGEN STORAGE
CHEMISORPTION
NICKEL-HYDROGEN BATTERIES
HYDROGEN
SCREENS
SINTERING
WIRES
CHEMICAL REACTIONS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELEMENTS
HYDROGEN COMPOUNDS
METAL-GAS BATTERIES
NONMETALS
SEPARATION PROCESSES
SORPTION
STORAGE
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
080201 - Hydrogen- Chemisorption Storage