Poster Presentation : 2P-372 ; Performance evaluation of ultra battery using a carbon electrode with a polymer-coated

due to low power density. Ultra battery is used an electrode with a carbon electrode of the capacitor and PbO2 electrode of the lead acid battery. Ultra battery show a feature of high energy density as a leadacid battery and high power density as a capacitor. However, elimination of carbon on the surface will cause a loss of performance of the ultra battery. In this study, the polymer coating in order to prevent dropping of the carbon in the negative electrode.