300W portable fuel cell power
Mitsubishi Gas Chemical display 300W portable fuel cell power unit power density up to 130m/Wcm2
Mitsubishi Gas Chemical Company in September 2008 10 to 12 at Tokyo Big Sight International Exhibition Center at the Fifth ECO-MAnufacture2008 (manufacturing environment and energy countermeasure development / technical session), exhibited a fuel cell portable power devices.
Built-in active mode of direct methanol fuel cell (DMFC), the output power of 300W (AC100V). 4L fuel tank can work for about 8 hours. Dimensions Width 380mm × depth 450mm × high 300mm, Dry weight of 22kg. Fuel concentration of 54% methanol solution.
Electrolyte membrane by DuPont (DuPont) the production of solid polymer membrane "Nafion", in the catalyst layer, electrodes and separators such as the formation of the self-developed technology. The shape of the fuel cell stack size is 120mm × 120mm × 125mm, 40-unit stack, heavy 3.9kg. Although the use of the sensor and pump control the reaction of the fuel supply and water recycling initiatives and other means of fuel-cell power density is as high as 130mW/cm2.
NHK Hitachi who have a similar trial of direct methanol fuel cell portable power. And in July in Hokkaido Toyako Summit in practical application of live news (see site report). Its weight is only 6kg, the output power 100W, continuous use time of two and half hours (the concentration of fuel for the 500mL 40% methanol solution).
Electric wheelchair for Suzuki
Mitsubishi Gas Chemical, said the company began many years ago and Suzuki Motor Corporation jointly promote the use of the fuel cell development for electric wheelchairs. As slow electric wheelchairs, 300W power supply can drive around. When using the original battery, users often worry about battery power, but if the use of fuel cells, you can no longer have this worry (4L fuel can travel 60km). However, there is no market, still in the feasibility study stage.
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