(Reuters) - Plug Power Inc said it bought fuel-cell stack maker ReliOn Inc for about $4 million in an all-stock deal, as the company looks to diversify its supplier base. Plug Power shares rose 4.5 ...

<a href="http://www.relion-inc.com/default.asp">ReliOn Inc</a>., a maker of fuel cells for backup power applications, said it has raised an additional $6 million in ...

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April 2 (Reuters) - Plug Power Inc said it bought hydrogen fuel-cell stack technology provider ReliOn Inc for about $4 million in an all-stock deal. Plug Power said it expects the acquisition to add ...