Maxwell Technologies unveils 51-volt ultracapacitor module for hybrid buses

Ultracapacitor specialist Maxwell Technologies has introduced a 51-volt module that’s specially designed for use in hybrid buses and other high-duty cycle applications. The latest addition to Maxwell’s lineup features a 2.85 V, 3,400-farad ultracapacitor cell that delivers the company’s highest available energy and power density.

Maxwell’s 51 V module includes an active cooling system, which is designed to ensure optimal performance from -40° to 65° C, and improves its continuous current rating by nearly 90%. It also incorporates Maxwell’s proprietary DuraBlue Advanced Shock and Vibration Technology. It exceeds the industry’s highest vibration standard for ultracapacitor modules (ISO 16750-3, Table 12), and has an IP65 environmental protection rating. It has an identical mounting pattern to Maxwell’s current 48 V module.

“Hybrid bus systems need to perform reliably, even when exposed to harsh conditions such as rugged roads and extreme temperatures,” said Maxwell VP Dr. Henning Hauenstein. “The 51-volt module’s ability to perform during demanding high duty-cycle applications reinforces our ongoing commitment to deliver superior performance and value to our customers.”


Source: Maxwell Technologies via Green Car Congress

  • jstack6

    Capacitors last almost forever, they take the load off batteries and can gain power from REGEN braking very quickly and efficiently. We already use them in Air conditioners to get the motors started. As they grow in capacity we will see them in more applications.

  • Electric Bill

    When I, was in 8th grade in 1962, my science class had a discussion and demonstration of crude motors, capacitors, batteries, etc. Someone asked why caps were rated in farads, when the largest ones were rated in fractions of that metric.

    The teacher said he shared the sentiment, saying that if someone were to actually try to build a capacitor with a value of one farad, it would be the size of a refrigerator and would be useless.

    Times change, for sure, seeing that we now have small, compact supercaps rated in the thousands of farads, and they are being used for applications my science teacher could never have imagined.