Search Results - battery

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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 ...
A Bi-level Equalizer for Battery Cell Charge Management
Project ID: D2016-41Invention Description and Novelty: This technology can provide a large increase in the capacity of older lithium ion batteries (LIB) that consist of cells connected in series or series/parallel. These LIBs require a battery management system (BMS) which measures and equalizes (EQU) the cell voltages to maximize performance and p...
Efficient resonant self-heating battery circuit for use in hybrid and electric vehicles
Project ID: ENG0098B Invention Description and Novelty: This technology includes an apparatus connected to an energy storage device for powering an electric motor and optionally providing a warming function for the energy storage device. The apparatus includes a circuit connected to the electric motor and the energy storage device for generating a ...
Electronic circuit for measuring series-connected electrochemical cell voltages for use in hybrid and electric vehicles
Project ID: ENG0098C Invention Description and Novelty: An electronic circuit for efficiently and accurately measuring individual voltages in a series-connected electrochemical energy storage device which may be utilized with electric and hybrid vehicles. This technology includes a voltage transfer circuit for measuring the individual segment volta...
Electronic circuit for measuring series-connected electrochemical cell voltages and heating energy storage devices (batteries) for hybrid and electric vehicles
Project ID: ENG0098A Invention Description and Novelty: A common requirement for large stacks of electrochemical cells used in electric and hybrid vehicles is the need to measure individual or groups of cell voltages almost simultaneously. The principal problem with current techniques of voltage measurement is that a small error in measuring the no...
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, thereb...