Mazda claims its new i-ELOOP system is the first passenger vehicle regenerative braking system to use a capacitor instead of a battery
The low-resistance Electric Double Layer Capacitor (EDLC) for storage used in the i-ELOOP system
While Toyota took out the Tokachi 24-Hour Race in 2007 with a Supra HV-R hybrid race car featuring a quick-charging supercapacitor-based regenerative braking system, battery storage has so far been the norm for these systems in production vehicles. Now Mazda is charging things up with its new "i-ELOOP" system intended for internal combustion engine-powered vehicles. The i-ELOOP is billed as the world's first passenger vehicle regenerative braking system that uses a capacitor in place of rechargeable batteries to temporarily store energy captured from braking.
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