Search Results - battery

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Super Sensitive Sensor For The Detection Of Hydroxyl Free Radicals in PEM Fuel Cells
Project ID: D2020-04 Background: Owing to increased threat to the environment, the market for eco-friendly hydrogen fuel cell vehicle is expected to hit $42 billion by 2026. However, concerns over the degradation of the current fuel cell technology is one of the biggest shortcomings. The durability issue persists in the ion exchange membrane that...
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...
Functionally graded graphene transient electronics
Project ID: D2018-22Background It is estimated that electronics account for 42 million tons of waste per year worldwide. As a result, electronic manufacturers have become interested in transient electronics. They contain environmentally benign components that can be degraded over time in a natural environment. Transient electronics can be used to better...
A Bi-level Equalizer for Battery Cell Charge Management
Project ID: D2016-41 Background: 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...