Australia's CAP-XX Ltd is developing supercapacitors to provide high power support to automotive stop-start systems, protecting and extending the operating life of the car's battery in the process. Supercapacitors are lighter than a battery, can operate at low temperatures and be charged and discharged almost without limit. To find out more, Matthew Beecham talked with CAP-XX's CEO Anthony Kongats and Pierre Mars, Vice President Applications Engineering & Quality.