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US 2022/0029443 A1Published application
Systems and methods for electrochemical device charging and discharging
AssigneeIontra Inc
InventorsDaniel A. Konopka, John Richard Howlett, III, Jeffrey J. Holt
Life of this patent
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Abstract
Systems and methods that charge a battery using a signal with at least one harmonically tuned aspect based on impedance of the battery with a frequency or harmonic component. The system may further involve a power converter that may act in concert with charging to power a load. In some instances, an output signal is generated that is interleaved with the charge signal. Further, the output signal may be tuned based on output impedance to the discharge signal.
Claims20
A charging system comprising:
- a charge signal shaping circuit;
- and
- a controller in operable communication with the charge signal shaping circuit to control the charge signal shaping circuit to define a charge signal for the electrochemical device based on a harmonic associated with a value representative of a flow of electrical current to the electrochemical device;
- and
- a power converter operably coupled with the electrochemical device, the power converter to provide power to a load.
2 more elements
A power converter comprising:
- a controller obtaining a value representative of a flow of electrical current to an electrochemical device, the value associated with a harmonic component of the flow of electrical current;
- a charge signal shaping circuit to define a charge signal for the electrochemical device based on the harmonic component;
- a power converter operably coupled with the electrochemical device, the power converter to provide power to a load;
- and
- wherein the controller delivers a control signal to the power converter to generate a harmonically tuned output of the power converter, the harmonically tuned output based on an optimum impedance value of the electrochemical device under discharge.
2 more elements
A power delivery method comprising:
- generating a discharge pulse from an electrochemical device, the discharge pulse including a harmonically shaped edge defined based on a harmonic associated with an output impedance of the electrochemical device.
Dependencies are inferred from the claim text.