Mazda reveals i-ELOOP capacitor-based regenerative braking system

Batteries aren't the only technology mankind has invented to store electricity, and Mazda is working on a solution to the energy storage needs of electrified vehicles with a new system it's calling i-ELOOP. While we wish it didn't have such a cumbersome moniker, the technology behind i-ELOOP is intriguing. Mazda claims that its i-ELOOP system will be featured in the first production passenger vehicle with recaptured energy from regenerative braking stored in a capacitor. The rest of the bits and pieces behind the tech include a variable voltage alternator and a DC/DC converter that sends energy otherwise lost to heat in the brakes at up to 25 volts to the Electric Double Layer Capacitor, where it's stored for later use. There's no electric motor in the i-ELOOP drivetrain, so the capacitor releases its energy to recharge the car's battery and to help power electric components like the heating and air conditioning systems. All in, Mazda promises fuel savings of up to 10 percent over cars not equipped with regenerative braking. Read all about it in the press release after the break.