By Kari Williamson

The companies are planning to commercialise the EDLC in 2015 for the automotive market – particularly for electric vehicle (EV) and hybrid electric vehicle (HEV) applications.

Sumitomo Electric’s Celmet is a porous metal made from nickel or nickel chrome alloy. It features high porosity (up to 98%), as well as high filling, retaining and current-collecting performance when used with an active material.

As such, Celmet has recently been adopted as a positive electrode current collector in nickel-hydrogen batteries for hybrid vehicles. In addition to the high porosity feature of Celmet, Aluminium-Celmet offers lightness and greater electrical conductivity than using nickel. Furthermore, Aluminium-Celmet offers good corrosion resistance.