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Sodium Sulfur Battery Accomplishments and Remaining Problems

Published online by Cambridge University Press:  21 February 2011

Wilfried Fischer*
Affiliation:
Asea Brown Boveri, Eppelheimer Str. 82, D-6900 Heidelberg, Federal Republic of Germany
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Abstract

NaS batteries are at a state of development at which the principal problems are resolved and prototype batteries have been tested for major applications such as electric vehicle propulsion and off-peak electric energy storage in electric networks. An overview will be presented on the state of development and on application tests performed so far.

Nevertheless, cell and battery ccmponents need to be further optimized. Major areas for potential improvements are the beta alumina solid electrolyte with regard to conductivity, mechanical strength and life, the metal ceramic joint, the cell casing with regard to corrosion resistance, and the vacuum thermal enclosure with regard to a lower thermal conductivity. Possible solutions will be discussed.

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Type
Research Article
Copyright
Copyright © Materials Research Society 1989

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