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With the “WPC EXPO 2003″ on the notebook display using the fuel cell of the workshop held at the same time, “the fuel cell is about to infiltrate into portable devices” (September 17, day after day by the electronics and environmental protection jointly hold) on, NEC to do the relevant technical Speech, and declared at the non-use of auxiliary machine-type “passive (passive)-type” direct methanol fuel fru 92p1167 battery, thinkpad z60t battery (DMFC) in the world achieve the highest output power density that is 50mW/cm2. Here, passive (passive) type is the catalyst by improving the electrode and electrolyte film unit, thereby enhancing the output power density without the use of pump and fan (Blower) and other auxiliary machines to high-density power output of the fuel cell. The company intends to further improve the materials in order to achieve practical implementation 100mW/cm2.

NEC has been able to successfully improve the output power density, based on its load at platinum catalyst particles Tam material used is called “carbon nano-process (Carbon Nanohorn)” nanotechnology of carbon materials manufacturing. Process because of the carbon nano-micro-nano-class structure, and therefore can make the following micro-5nm platinum micro-particles can be dispersed, which would increase the catalyst surface area and thus improve the output power density. In addition DMFC in order to solve one of the topics Crossover (because of methanol through the electrolyte in order to cause the problem of declining output power), which is difficult through the use of methanol the solid electrolyte membrane, in June 2003 issued by the same type of fuel cell output power density of 40mW/cm2, the reason can be reduced to 10mW / cm2, is because “by raising the electrolyte membrane and the adhesion between the catalyst, thereby reducing the resistance, and the efforts ibm laptop battery, thinkpad z61t battery carried out because of the crystallization of solid “(NEC foundation Applied Research Institute of CNT Center Research Minister Okubo long is good). The current Department of Materials has reached the limit, in order to achieve higher 100mW/cm2 is a catalyst for research activity.

Passive (passive) type fuel cell are by infiltration and proliferation of methanol, natural inhalation and air transportation, fuel cells, because of its small size, light weight and noise characteristics, so that the NEC for portable devices are the best technology . But the display’s built-fuel cell type, are at the bottom of the laptop to install the fuel cell group, in order to supply fuel and replacement of the air using a small pump and fan. In this sense, no longer belong to the passive (passive) products, but the company has explained that the use of these auxiliary machine is designed to solve the layout of the fuel cell problem, nothing to do with the output power. The company said it would replace the current fuel cells in February 2003 issued by an external vertical type, the use of gravity or the supply of fuel is designed to easily inhaled air can naturally achieve the same output power density. The company intends to continue to take the “passive (passive) Type” to improve the output power density 40y6793 battery, thinkpad x61 battery.