<abstract abstract-type="toc"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <graphic position="anchor" id="ga" xlink:href="ark:/27927/pgh3xs44k7g" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" />Ultra small Ni(OH)<sub>2</sub> nanoparticles are directly grown on the porous conductive CoOOH sheet using cathodic electrophoresis as the high-performance electrode materials for supercapacitor application.</p> </abstract>