NEC Corp enabled an organic radical battery to be repeatedly charged/discharged 10,000 times or more with one second or shorter pulse discharge while enhancing its power density. By utilizing a printing technology and a technique to evenly disperse electrode ink, the company increased the uniformities of the organic radical material and the carbon fiber, thereby reducing the internal resistance of the positive electrode of the organic radical battery. As a result, the power density of the battery was increased to 5,000W/L, which is three times as high as that of the company's existing organic radical battery. In addition, by reviewing the structure of the battery and improving the compatibility between the organic radical material and the electrolytic solution, NEC confirmed that the battery can be repeatedly charged/discharged 10,000 times or more.
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