Technical Innovations
March 2005
Advances toward hydrogen storage
General Motors and Sandia National Laboratories have embarked on a four-year, $10-million program to develop and test tanks that store hydrogen in a complex hydride, sodium aluminum hydride, or sodium alanate. Metal hydrides—formed when metal alloys are combined with hydrogen—can absorb and store hydrogen within their structures. When subjected to heat, the hydrides release their hydrogen. In a fuel-cell system, the hydrogen can then be combined with oxygen to produce electricity.
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