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Phones With 7-Day Battery Life Seen by Fuel-Cell Maker

  • Intelligent Energy has funding from smartphone manufacturer
  • Researcher was first to put fuel cells in London black cabs

A British fuel-cell developer that was first to put the technology harnessing the power of hydrogen into London’s distinctive black cab said it’s working on a system that would allow mobile phone users to charge just once a week.

Intelligent Energy Holdings Plc said an emerging smartphone maker will provide 5.25 million pounds ($7.6 million) to develop a fuel cell small enough to be embedded in mobile phones.