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Hybrid Electric Vehicle Energy Storage System

Project ID: ENG00204 Novelty: This invention provides both a combined battery/ultracapacitor energy storage system and battery chargers associated with these systems. First, it combines an ultracapacitor with a battery to optimally power both high current surges and more constant demands. The ultracapacitor provides the high current power, thereby...

A Bi-level Equalizer for Battery Cell Charge Management

Project ID: D2016-41 Lithium ion batteries for electric vehicles (EV) begin to degrade much faster after the capacity drops below about 80%, and manufacturers recommend that they be replaced at about this point. However, these batteries still have adequate capacity for other applications, and it is expected that vast numbers will soon become available....