Organic cathode for a secondary battery

US4966823A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Ratnakumar V. Bugga · Arcadia, US
• Salvador DiStefano · Alhambra, US
• Roger M. Williams · Azusa, US
• Clyde P. Bankston · West Hollywood, US

Key dates

• Filing date: Sep 7, 1989
• Grant date: Oct 30, 1990
• Expiry date: Sep 7, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A liquid catholyte for a battery based on liquid metal such as sodium anode and a solid, ceramic separator such as beta alumina (BASE) comprises a mixture of a Group I-III metal salt such as sodium tetrachloroaluminate and a minor amount of an organic carbonitrile depolarizer having at least one adjacent ethylenic bond such as 1 to 40 percent by weight of tetracyanoethylene. The tetracyanoethylene forms an adduct with the molten metal salt.