In regenerative braking, energy is typically stored in which part of the vehicle?

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During regenerative braking, the vehicle’s traction motor runs as a generator, converting the car’s kinetic energy into electrical energy. That energy is stored in the energy storage system, which is typically the high‑voltage battery pack. Storing energy in the battery lets it be reused later to power the electric motor, boosting efficiency and reducing fuel use in hybrids and electric vehicles. In some designs, ultracapacitors may supplement the battery to handle brief, high‑power bursts, but the primary storage for regenerative braking is the battery. The fuel tank and exhaust system aren’t involved in storing braking energy, and a basic capacitor alone isn’t used as the main storage medium for propulsion energy.