Friday December 15, 2017

Sony Unveils Ultrasmall Hybrid Fuel Cell for phones
  Posted by: Digg on May 4th, 2008 2:10 PM
Sony prototyped a fuel-cell system small enough to fit in one hand (50x30mm). It works by combining a fuel cell, a Li-polymer secondary battery, a control circuit and so forth together to output up to 3W of power. Its use efficiency of energy is high enough that 14 hours of 1seg movie can be continuously played by general mobile phones.

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