Ultracapacitor Solutions to Address Energy-Storage Needs of Vehicles Already established for hybrid-electric systems, ultracapacitors are well-placed to assist in the transition to battery electric vehicles. Lamborghini Aventador's ultracapacitor-based engine start-stop system helps reduce CO2 emissions. (Photo: Lamborghini) A 6 2 Battery & Electrification Technology, May 2022 BET Capacitor Feature 0522_1 copy.indd 6 Cov ToC 4/21/22 2:17 PMhttp://info.hotims.com/82321-831