TOKYO — Toshiba Corp said Monday its direct methanol fuel cell was certified in the 2006 edition of Guinness World Records as the world's smallest DMFC.
The thumb-size DMFC is only 22 millimeters wide, 56 mm long and 4.5 mm high (maximum of 9.1 mm with fuel tank,) the major Japanese electronics maker said. The highly compact DMFC outputs 100 milliwatts of power and can power a small music player for as long as 20 hours on a single 2 cubic centimeter charge of highly concentrated methanol. (Kyodo News)