New Fuel Cell Electrode Use 99% Less Platinum

The company plans to continue improving the plating liquid to make the platinum layer even thinner, thereby reducing costs further.

Published: 03-Oct-2007

TOKYO--Nakajimakinzoku Co., a Kyoto firm specializing in metal plating, has developed a fuel cell electrode that uses less than 1 per cent as much platinum as conventional electrodes.

The firm succeeded in developing a new method in which the combination of current strength and temperature during plating can be adjusted in 10 increments, enabling the creation of metal particles as small as 2 nanometers in diameter, one-10th the size of particles made with conventional methods.

These particles of different sizes and shapes are then used to form a plating layer with no gaps, preventing contact between the inside metal and the strongly acidic electrolytes.

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