Electrochemical hydrogen storage alloys for nickel metal hydride batteries, fuel cells and methods of manufacturing same

US6500583B1 · kind B1 · utility

Assignees

• Energy Conversion Devices, Inc. · US
• Crucible Materials Corporation · US

Inventors

• Jason Ting · Ames, US
• Ulrike Habel · Pittsburgh, US
• Michael W. Peretti · South Park Township, US
• William B. Eisen · Pittsburgh, US
• Rosa Young · Troy, US
• Benjamin Chao · Troy, US
• Baoquan Huang · Troy, US

Key dates

• Filing date: Jul 17, 2000
• Grant date: Dec 31, 2002
• Expiry date: Jul 17, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49108
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Practice of this invention provides, at least, a method of making a hydrogen storage material comprising the steps of:1. forming a molten mixture comprising nickel and at least one other transition metal element, the combination of which will form a TiNi alloy and including in said molten mixture from about 0.1 at. % to about 10 at. % of one or more elements which will form an alloy which is immiscible in the TiNi-type alloy; and(b) cooling said molten mixture to form a solid alloy-system material by rapid solidification of said molten mixture at a cooling rate of at least 103° C. per second.