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).
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Patent number: 11933856Abstract: 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: GrantFiled: November 23, 2022Date of Patent: March 19, 2024Assignee: Dynexus Technology, Inc.Inventor: Jon P. Christophersen
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Publication number: 20230375491Abstract: 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: ApplicationFiled: July 31, 2023Publication date: November 23, 2023Applicant: Dynexus Technology, Inc.Inventor: Jon P. Christophersen
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Patent number: 11714056Abstract: 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: GrantFiled: August 22, 2022Date of Patent: August 1, 2023Assignee: Dynexus Technology, IncInventor: Jon P. Christophersen
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Publication number: 20230091066Abstract: 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: ApplicationFiled: November 23, 2022Publication date: March 23, 2023Applicant: Dynexus Technology, Inc.Inventor: Jon P. Christophersen
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Publication number: 20230031969Abstract: 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: ApplicationFiled: May 1, 2020Publication date: February 2, 2023Applicant: Dynexus Technology, Inc.Inventors: Bryce Hill, John Morrison, Jon P. Christophersen
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Publication number: 20220397541Abstract: 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: ApplicationFiled: August 22, 2022Publication date: December 15, 2022Applicant: Dynexus Technology Inc.Inventor: Jon P. Christophersen
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Patent number: 11519969Abstract: 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: GrantFiled: January 22, 2021Date of Patent: December 6, 2022Assignee: Dynexus Technology, Inc.Inventor: Jon P. Christophersen
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Patent number: 11422102Abstract: 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: GrantFiled: January 8, 2021Date of Patent: August 23, 2022Assignee: Dynexus Technology, Inc.Inventor: Jon P. Christophersen
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Publication number: 20210255248Abstract: 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: ApplicationFiled: April 7, 2021Publication date: August 19, 2021Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison
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Publication number: 20210231743Abstract: 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: ApplicationFiled: January 22, 2021Publication date: July 29, 2021Applicant: Dynexus Technology, Inc.Inventor: Jon P. Christophersen
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Publication number: 20210215628Abstract: 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: ApplicationFiled: January 8, 2021Publication date: July 15, 2021Applicant: Dynexus Technology, Inc.Inventor: Jon P. Christophersen
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Patent number: 11054481Abstract: 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: GrantFiled: March 19, 2019Date of Patent: July 6, 2021Assignee: Battelle Energy Alliance, LLCInventors: Jon P. Christophersen, John L. Morrison, William H. Morrison
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Patent number: 10901044Abstract: 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: GrantFiled: October 23, 2018Date of Patent: January 26, 2021Assignee: Battelle Energy Alliance, LLCInventors: Jon P. Christophersen, John L. Morrison, William H. Morrison, Patrick A. Bald
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Publication number: 20200300920Abstract: 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: ApplicationFiled: March 19, 2019Publication date: September 24, 2020Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison
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Patent number: 10379168Abstract: 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: GrantFiled: June 4, 2014Date of Patent: August 13, 2019Assignee: Battelle Energy Alliance, LLCInventors: Jon P. Christophersen, John L. Morrison, William H. Morrison, Patrick A. Bald
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Patent number: 10345384Abstract: 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: GrantFiled: March 3, 2016Date of Patent: July 9, 2019Assignee: BATTELLE ENERGY ALLIANCE, LLCInventors: Jon P Christophersen, William H Morrison, John L Morrison
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Publication number: 20190187212Abstract: 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: ApplicationFiled: February 14, 2019Publication date: June 20, 2019Inventors: Humberto E. Garcia, Jon P. Christophersen
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Publication number: 20190064284Abstract: 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: ApplicationFiled: October 23, 2018Publication date: February 28, 2019Inventors: Jon P. Christophersen, John L. Morrison, William H. Morrison, Patrick A. Bald
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Patent number: 10209314Abstract: 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: GrantFiled: November 21, 2016Date of Patent: February 19, 2019Assignee: Battelle Energy Alliance, LLCInventors: Humberto E. Garcia, Jon P. Christophersen
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Publication number: 20180143257Abstract: 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: ApplicationFiled: November 21, 2016Publication date: May 24, 2018Inventors: HUMBERTO E. GARCIA, JON P. CHRISTOPHERSEN