... but pretty pointless economically (as shown above) for general use.
Its (dormant) storage characteristics are pretty appealing ...
> Sodium silicide is stable over all practical temperature ranges (-55°C to 300°C),
> is lightweight, and has an unlimited shelf life. For emergency responders and the
> military, this means that generators, radios, phones, computers, telecommunications
> stations, and temporary medical equipment will operate continuously, reliably, and
> safely with sodium silicide fuel cells. Given its indefinite shelf life, this material can
> be easily stockpiled and transported.
... as are the "water" requirements ...
> Another interesting benefit, clean water is not required to generate hydrogen.
> Sodium silicide fuel cells can generate power with any type of water solution – including
> potable water, polluted water, sea water, or even urine. This is significant in battlefield
> or natural disaster response settings where clean water supplies may be disrupted.
... although I can see the potential for a Darwin award from a squaddie p*ssing into
his 200W power supply ...
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