Patents by Inventor Jon P. Christophersen

Jon P. Christophersen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11933856
    Abstract: A method for screening and matching cells for qualification and binning can include conducting a first and second impedance-based measurement of a cell separated by a rest interval of the cell and analyzing change/shift in the impedance spectrum obtained before and after the rest interval to afford algorithms to match, categorize, or group cells within a plurality of cells (C1 . . . Cn) that have the same, substantially the same, or fall within a range of structural or functional parameters based on the impedance change/shift in the impedance spectrum.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: March 19, 2024
    Assignee: Dynexus Technology, Inc.
    Inventor: Jon P. Christophersen
  • Publication number: 20230375491
    Abstract: An in-line rapid impedance measurement device and methods of performing in-line rapid impedance spectroscopy including a switch network operable under a switching algorithm useful to rapidly perform targeted impedance measurements to assess state of health, defect or failure of battery packs or modules having a plurality of electrochemical cells interconnected in series or parallel and to isolate individual cells within a pack or module to distinguish between non-repeatable anomalous impedance measurements from repeatable deviant impedance measurements and identify the source of deviant impedance measurements.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Applicant: Dynexus Technology, Inc.
    Inventor: Jon P. Christophersen
  • Patent number: 11714056
    Abstract: An in-line rapid impedance measurement device and methods of performing in-line rapid impedance spectroscopy including a switch network operable under a switching algorithm useful to rapidly perform targeted impedance measurements to assess state of health, defect or failure of battery packs or modules having a plurality of electrochemical cells interconnected in series or parallel and to isolate individual cells within a pack or module to distinguish between non-repeatable anomalous impedance measurements from repeatable deviant impedance measurements and identify the source of deviant impedance measurements.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: August 1, 2023
    Assignee: Dynexus Technology, Inc
    Inventor: Jon P. Christophersen
  • Publication number: 20230091066
    Abstract: A method for screening and matching cells for qualification and binning can include conducting a first and second impedance-based measurement of a cell separated by a rest interval of the cell and analyzing change/shift in the impedance spectrum obtained before and after the rest interval to afford algorithms to match, categorize, or group cells within a plurality of cells (C1 . . . Cn) that have the same, substantially the same, or fall within a range of structural or functional parameters based on the impedance change/shift in the impedance spectrum.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 23, 2023
    Applicant: Dynexus Technology, Inc.
    Inventor: Jon P. Christophersen
  • Publication number: 20230031969
    Abstract: Devices and methods to perform AC impedance measurement of a device which use an excitation signal including a root mean squared current or a root mean squared voltage in a sequence of one or more frequency groups, wherein each of said frequency groups includes a summation of one or more frequencies within a frequency spread.
    Type: Application
    Filed: May 1, 2020
    Publication date: February 2, 2023
    Applicant: Dynexus Technology, Inc.
    Inventors: Bryce Hill, John Morrison, Jon P. Christophersen
  • Publication number: 20220397541
    Abstract: An in-line rapid impedance measurement device and methods of performing in-line rapid impedance spectroscopy including a switch network operable under a switching algorithm useful to rapidly perform targeted impedance measurements to assess state of health, defect or failure of battery packs or modules having a plurality of electrochemical cells interconnected in series or parallel and to isolate individual cells within a pack or module to distinguish between non-repeatable anomalous impedance measurements from repeatable deviant impedance measurements and identify the source of deviant impedance measurements.
    Type: Application
    Filed: August 22, 2022
    Publication date: December 15, 2022
    Applicant: Dynexus Technology Inc.
    Inventor: Jon P. Christophersen
  • Patent number: 11519969
    Abstract: A method for screening and matching cells for qualification and binning can include conducting a first and second impedance-based measurement of a cell separated by a rest interval of the cell and analyzing change/shift in the impedance spectrum obtained before and after the rest interval to afford algorithms to match, categorize, or group cells within a plurality of cells (C1 . . . Cn) that have the same, substantially the same, or fall within a range of structural or functional parameters based on the impedance change/shift in the impedance spectrum.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: December 6, 2022
    Assignee: Dynexus Technology, Inc.
    Inventor: Jon P. Christophersen
  • Patent number: 11422102
    Abstract: An in-line rapid impedance measurement device and methods of performing in-line rapid impedance spectroscopy including a switch network operable under a switching algorithm useful to rapidly perform targeted impedance measurements to assess state of health, defect or failure of battery packs or modules having a plurality of electrochemical cells interconnected in series or parallel and to isolate individual cells within a pack or module to distinguish between non-repeatable anomalous impedance measurements from repeatable deviant impedance measurements and identify the source of deviant impedance measurements.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: August 23, 2022
    Assignee: Dynexus Technology, Inc.
    Inventor: Jon P. Christophersen
  • Publication number: 20210255248
    Abstract: Impedance testing devices, circuits, systems, and related methods are disclosed. A method may include exciting a device coupled to a load, and capturing a response of the device. The method may further include adjusting the response based on an estimated load response of the device, and estimating an impedance of the device based on the adjusted response.
    Type: Application
    Filed: April 7, 2021
    Publication date: August 19, 2021
    Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison
  • Publication number: 20210231743
    Abstract: A method for screening and matching cells for qualification and binning can include conducting a first and second impedance-based measurement of a cell separated by a rest interval of the cell and analyzing change/shift in the impedance spectrum obtained before and after the rest interval to afford algorithms to match, categorize, or group cells within a plurality of cells (C1 . . . Cn) that have the same, substantially the same, or fall within a range of structural or functional parameters based on the impedance change/shift in the impedance spectrum.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Applicant: Dynexus Technology, Inc.
    Inventor: Jon P. Christophersen
  • Publication number: 20210215628
    Abstract: An in-line rapid impedance measurement device and methods of performing in-line rapid impedance spectroscopy including a switch network operable under a switching algorithm useful to rapidly perform targeted impedance measurements to assess state of health, defect or failure of battery packs or modules having a plurality of electrochemical cells interconnected in series or parallel and to isolate individual cells within a pack or module to distinguish between non-repeatable anomalous impedance measurements from repeatable deviant impedance measurements and identify the source of deviant impedance measurements.
    Type: Application
    Filed: January 8, 2021
    Publication date: July 15, 2021
    Applicant: Dynexus Technology, Inc.
    Inventor: Jon P. Christophersen
  • Patent number: 11054481
    Abstract: Impedance testing devices, circuits, systems, and related methods are disclosed. A Device Under Test (DUT) is excited with a multispectral excitation signal for an excitation time period while the DUT is under a load condition from a load operably coupled to the DUT. A response of the DUT is sampled over a sample time period. The sample time period is configured such that it includes an in-band interval during the excitation time period and one or more out-of-band intervals outside of the in-band interval. A response of the DUT to the load condition during the in-band interval is estimated by analyzing samples of the response from the one or more out-of-band intervals. Adjusted samples are computed by subtracting the estimated load response during the in-band interval from the samples from the in-band interval. An impedance of the DUT is estimated by analyzing the adjusted samples.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 6, 2021
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison
  • Patent number: 10901044
    Abstract: Real-time battery impedance spectra are acquired by stimulating a battery or battery system with a signal generated as a sum of sine signals at related frequencies. An impedance measurement device can be used to interface between the battery system and a host computer for generating the signals. The impedance measurement device may be calibrated to adapt the response signal to more closely match other impedance measurement techniques. The impedance measurement device may be adapted to operate at mid-range voltages of about 50 volts and high-range voltages up to about 300 volts.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: January 26, 2021
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison, Patrick A. Bald
  • Publication number: 20200300920
    Abstract: Impedance testing devices, circuits, systems, and related methods are disclosed. A Device Under Test (DUT) is excited with a multispectral excitation signal for an excitation time period while the DUT is under a load condition from a load operably coupled to the DUT. A response of the DUT is sampled over a sample time period. The sample time period is configured such that it includes an in-band interval during the excitation time period and one or more out-of-band intervals outside of the in-band interval. A response of the DUT to the load condition during the in-band interval is estimated by analyzing samples of the response from the one or more out-of-band intervals. Adjusted samples are computed by subtracting the estimated load response during the in-band interval from the samples from the in-band interval. An impedance of the DUT is estimated by analyzing the adjusted samples.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 24, 2020
    Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison
  • Patent number: 10379168
    Abstract: Real-time battery impedance spectra are acquired by stimulating a battery or battery system with a signal generated as a sum of sine signals at related frequencies. An impedance measurement device can be used to interface between the battery system and a host computer for generating the signals. The impedance measurement device may be calibrated to adapt the response signal to more closely match other impedance measurement techniques. The impedance measurement device may be adapted to operate at mid-range voltages of about 50 volts and high-range voltages up to about 300 volts.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: August 13, 2019
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison, Patrick A. Bald
  • Patent number: 10345384
    Abstract: Battery impedance testing devices, circuits, systems, and related methods are disclosed. An impedance measurement device includes a current driver configured to generate an excitation current signal to be applied to a test battery responsive to a control signal, and a processor operably coupled with the current driver. The processor is configured to generate the control signal during an auto-ranging mode and a measuring mode. The auto-ranging mode applies the excitation current signal to the test battery over a plurality of different amplitudes to measure a response to the excitation current signal at each amplitude. The measuring mode applies the excitation current signal to the test battery for an amplitude responsive to the results of the auto-ranging mode. Improved sensitivity and resolution may be achieved for low impedance batteries with a rapid measurement time.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: July 9, 2019
    Assignee: BATTELLE ENERGY ALLIANCE, LLC
    Inventors: Jon P Christophersen, William H Morrison, John L Morrison
  • Publication number: 20190187212
    Abstract: Systems and computer-implemented methods are used for analyzing battery information. The battery information may be acquired from both passive data acquisition and active data acquisition. Active data may be used for feature extraction and parameter identification responsive to the input data relative to an electrical equivalent circuit model to develop geometric-based parameters and optimization-based parameters. These parameters can be combined with a decision fusion algorithm to develop internal battery parameters. Analysis processes including particle filter analysis, neural network analysis, and auto regressive moving average analysis can be used to analyze the internal battery parameters and develop battery health metrics. Additional decision fusion algorithms can be used to combine the internal battery parameters and the battery health metrics to develop state-of-health estimations, state-of-charge estimations, remaining-useful-life predictions, and end-of-life predictions for the battery.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 20, 2019
    Inventors: Humberto E. Garcia, Jon P. Christophersen
  • Publication number: 20190064284
    Abstract: Real-time battery impedance spectra are acquired by stimulating a battery or battery system with a signal generated as a sum of sine signals at related frequencies. An impedance measurement device can be used to interface between the battery system and a host computer for generating the signals. The impedance measurement device may be calibrated to adapt the response signal to more closely match other impedance measurement techniques. The impedance measurement device may be adapted to operate at mid-range voltages of about 50 volts and high-range voltages up to about 300 volts.
    Type: Application
    Filed: October 23, 2018
    Publication date: February 28, 2019
    Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison, Patrick A. Bald
  • Patent number: 10209314
    Abstract: Systems and computer-implemented methods are used for analyzing battery information. The battery information may be acquired from both passive data acquisition and active data acquisition. Active data may be used for feature extraction and parameter identification responsive to the input data relative to an electrical equivalent circuit model to develop geometric-based parameters and optimization-based parameters. These parameters can be combined with a decision fusion algorithm to develop internal battery parameters. Analysis processes including particle filter analysis, neural network analysis, and auto regressive moving average analysis can be used to analyze the internal battery parameters and develop battery health metrics. Additional decision fusion algorithms can be used to combine the internal battery parameters and the battery health metrics to develop state-of-health estimations, state-of-charge estimations, remaining-useful-life predictions, and end-of-life predictions for the battery.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: February 19, 2019
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Humberto E. Garcia, Jon P. Christophersen
  • Publication number: 20180143257
    Abstract: Systems and computer-implemented methods are used for analyzing battery information. The battery information may be acquired from both passive data acquisition and active data acquisition. Active data may be used for feature extraction and parameter identification responsive to the input data relative to an electrical equivalent circuit model to develop geometric-based parameters and optimization-based parameters. These parameters can be combined with a decision fusion algorithm to develop internal battery parameters. Analysis processes including particle filter analysis, neural network analysis, and auto regressive moving average analysis can be used to analyze the internal battery parameters and develop battery health metrics. Additional decision fusion algorithms can be used to combine the internal battery parameters and the battery health metrics to develop state-of-health estimations, state-of-charge estimations, remaining-useful-life predictions, and end-of-life predictions for the battery.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 24, 2018
    Inventors: HUMBERTO E. GARCIA, JON P. CHRISTOPHERSEN