Sylvie Barak the Inquirer , Friday 16 May 2008. 16:34:00 Cell it to me SHARP HAS unveiled a high density, 0.3Wcc direct methanol fuel cell (DMFC), which boasts the highest level of power density yet achieved. The diminutive cell volume, whose tiny frame measures 50 x 30 mm, has a longer lifespan than commonly used lithium ion batteries and is well matched for notebooks,... ...