Hydrogen storage materials having excellent kinetics, capacity, and cycle stability

US7344676B2 · kind B2 · utility

Assignee

• Ovonic Hydrogen Systems LLC · US

Inventors

• Kwo Young · Troy, US
• Michael A. Fetcenko · Rochester, US
• Taihei Ouchi · Rochester, US
• Jun Im · Troy, US
• Stanford R. Ovshinsky · Bloomfield Hills, US
• Feng Li · Rochester, US
• Melanie Reinhout · Shelby Charter Township, US

Key dates

• Filing date: Dec 19, 2003
• Grant date: Mar 18, 2008
• Expiry date: Dec 19, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S420/90
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A BCC phase hydrogen storage alloy capable of storing approximately 4.0 wt. % hydrogen and delivering reversibly up to 3.0 wt. % hydrogen at temperatures up to 110° C. The hydrogen storage alloys also possess excellent kinetics whereby up to 80% of the hydrogen storage capacity of the hydrogen storage alloy may be reached in 30 seconds and 80% of the total hydrogen storage capacity may be desorbed from the hydrogen storage alloy in 90 seconds. The hydrogen storage alloys also have excellent stability which provides for long cycle life.