The fuel cell will weigh 900 grams and enable notebook computers to run for 40 consecutive hours of operation, about 10 times longer than lithium-ion batteries, the report said. The new fuel cell features electrons made of carbon nanohorn, with a number of needle-like extrusions. By attaching platinum to its extrusions, NEC has expanded the electrode's surface area

Tokyo-based NEC and its rivals Toshiba Corp. and Sony Corp. are developing fuel-cell batteries as demand for longer-lasting batteries to link potable devices such as mobile phone and video cameras to data networks is expected to rise. 

The Nihon Keizai newspaper yesterday reported NEC will unveil a trial version on July 13 and plans to release a notebook PC with a built-in fuel cell within two years. a version of reduced power should be on the
market by as early as next year.this reduced power version will be able to run for five consecutive hours on a single cartridge of methanol fuel.

NEC previously demonstrated a prototype in Feb,2004, at the International Nanotechnology Exhibition & Conference held in Feb.2004.

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