Title:
PORTABLE IMPEDANCE SPECTROSCOPE AND METHOD FOR MEASURING IMPEDANCE SPECTRUM OF HIGH-VOLTAGE BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2022/145979
Kind Code:
A1
Abstract:
A portable impedance spectroscope for measuring the impedance spectrum of a high-voltage battery pack comprises: an initializing unit for initializing a DAC unit and ADC unit, if a command is delivered by means of a provided GUI; the DAC unit for generating a sine wave perturbation signal in accordance with different frequencies on the basis of a set perturbation amplitude; the ADC unit for obtaining a voltage and current waveform generated by means of the perturbation signal; and an impedance measurement unit for deriving the impedance in a particular frequency on the basis of the obtained voltage and current waveform. Therefore, a portable EIS device can be provided which is capable of measuring the impedance spectrum of a high-voltage battery pack without a separate external power supply.
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Inventors:
KO YOUNG-HWII (KR)
Application Number:
PCT/KR2021/020062
Publication Date:
July 07, 2022
Filing Date:
December 28, 2021
Export Citation:
Assignee:
BATRONICS CO LTD (KR)
International Classes:
G01R31/389; G01N27/02; G01R31/392; H01M10/48
Foreign References:
| KR20100021964A | 2010-02-26 | |||
| KR20200050950A | 2020-05-12 | |||
| KR20170141400A | 2017-12-26 | |||
| KR20200020566A | 2020-02-26 |
Other References:
RAHIM GUL, WOO-JIN CHOI: "A Portable Impedance Spectroscopy Instrument for the Measurement of the Impedance Spectrum of High Voltage Battery Pack", THE TRANSACTIONS OF THE KOREAN INSTITUTE OF POWER ELECTRONICS, THE KOREAN INSTITUTE OF POWER ELECTRONICS, KP, vol. 26, no. 3, 30 June 2021 (2021-06-30), KP , pages 192 - 198, XP055948886, ISSN: 1229-2214, DOI: 10.6113/TKPE.2021.26.3.192
Attorney, Agent or Firm:
YUN, Kuisang (KR)
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