NTT Develops Mobile-Phone Hydrogen Fuel Cell
Nippon Telegraph and Telephone has developed a prototype fuel cell that it hopes to commercialize within three years at a size small enough to fit inside mobile phones and other portable consumer electronics devices, the company said Thursday.
Source: PC WorldThe prototype is a micro polymer-electrolyte fuel cell that works by combining hydrogen with oxygen, generating electricity and water. It is more powerful than the direct methanol fuel cells currently being developed by many companies, said Kazuya Akiyama, a researcher at the energy systems project at NTT's energy and environment systems laboratories.
The power density of the NTT cell, which is a measure of the amount of power it can generate relative to its size, is up to 200 milliwatts per square centimeter. When the fuel cell is commercialized, it will be able provide a third-generation mobile phone that uses 2.5 watts of power with about 9 hours of talk time, Akiyama said in a presentation at NTT's Yokosuka R&D Center on Thursday.
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