In a few more years ultracapacitors will become a mainstream technology, alongside with established electrochemical battery energy storage. This is one of conclusions of market study Ultracapacitor Market Forecast 2015-2020. Transport segment is forecast to benefit the most from rapidly advancing ultracapacitor technology. Replacing lead-acid batteries with ultrracapacitors may prove to become a burgeoning market opportunity in the very near future.
Lead–acid batteries, invented in the middle of the 19th century, are the oldest and still the most common type of rechargeable battery providing start/stop functionality in modern cars. Lead-acid batteries have a very low energy-to-weight ratio and a low energy-to-volume ratio, yet they are capable to supply high surge currents means that the cells maintain a relatively large power-to-weight ratio. Ultracapacitor technology, approaching performance of lead-acid batteries, has many advantages like longer lifecycle and fast charging/discharging. Ultracapacitors are unique in combining start/stop and regenerative braking functionalities in one device.
Maxwell Technologies, Inc. already supplies large cells to Continental AG, a global Tier 1 auto parts supplier, for a stop-start idle elimination system introduced by PSA Peugeot Citroen in Europe for the 2011 model year.



