A novel online measurement technique for AC impedance of batteries and other electrochemical systems

Kozlowski, J.D.

doi:10.1109/bcaa.2001.905134

Cited by 13 publications

(5 citation statements)

References 9 publications

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“…Conventionally, the battery resistance are calculated by the electrochemical impedance spectroscopy (EIS) measurement and direct current internal resistance test [3][4][5][6][7][8]. A measurement system for impedance is proposed at a range of frequencies using the existing power electronics [7].…”

Section: Literature Reviewmentioning

confidence: 99%

A Novel Thermo-Electric Coupling Model of Batteries for Electric Vehicles Application

Guo,

Xiong*,

Sun

et al. 2020

Preprint

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Section: Literature Reviewmentioning

confidence: 99%

A Novel Thermo-Electric Coupling Model of Batteries for Electric Vehicles Application

Guo,

Xiong*,

Sun

et al. 2020

Preprint

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“…Electrochemical Impedance Spectroscopy (EIS) measurements have been emphasized as a valuable tool for battery modeling and life estimation [9][10][11][12][13]. AC impedance data have been shown to reveal changes in the bulk behavior of the electrochemical processes as well, which can give an indication of the changes in the battery electrode surface and diffusion layer [14].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Determination of Battery Stability with Advanced Diagnostics

Lamb,

Orendorff,

Christophersen

2015

Meet. Abstr.

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Lithium ion batteries for use in battery electric vehicles (BEVs) has seen considerable expansion over the last several years. It is expected that market share and the total number of BEVs will continue to increase over coming years and that there will be changes in the environmental and use conditions for BEV batteries. Specifically aging of the batteries and exposure to an increased number of crash conditions presents a distinct possibility that batteries may be in an unknown state posing danger to the operator, emergency response personnel and other support personnel. The present work expands on earlier efforts to explore the ability to rapidly monitor using impedance spectroscopy techniques and characterize the state of different battery systems during both typical operations and under abusive conditions. The work has found that it is possible to detect key changes in performance for strings of up to four cells in both series and parallel configurations for both typical and abusive response. As a method the sensitivity for detecting change is enhanced for series configurations. For parallel configurations distinct changes are more difficult to ascertain, but under abusive conditions and for key frequencies it is feasible to use current rapid impedance techniques to identify change. The work has also found it feasible to use rapid impedance as an evaluation method for underload conditions, especially for series strings of cells.

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“…EIS measurements have been emphasized as a valuable tool for battery modeling and life estimation [9][10][11][12][13]. EIS data have been shown to reveal changes in the bulk behavior of the electrochemical processes as well, which can give an indication of the changes in the battery electrode surface and diffusion layer [14].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Determination of battery stability with advanced diagnostics

Lamb¹,

Orendorff²,

Christophersen

2014

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The increasing demand for lithium ion batteries for vehicle electrification is changing the typical-use conditions that batteries may see. Over time batteries may develop defects that are difficult to detect with traditional measurements. It is also possible that batteries may be left in an unknown state after failure of the monitoring system, loss of communication, or a potentially damaging event such as a car crash. It is therefore useful to explore other monitoring and interrogation methods that can better determine the stability of a battery in an unknown state. This work explores the use of electrochemical impedance spectroscopy as a method to determine the stability of batteries by observing changes in the complex impedance measurement as the cell is exposed to abusive conditions. Very dramatic changes to the internal resistance were observed when single cells were exposed to abusive conditions, suggesting that even single frequency impedance measurements could be effective with single cells. However, tests on three-cell series and parallel strings yielded smaller changes, primarily to the charge transfer resistance, showing that complex impedance measurements are more appropriate as the system increases in complexity. A rapid-impedance tool developed at Idaho National Laboratory was tested and compared to traditional potentiostat tools as well. This tool was shown to yield similar data to the traditional tools, providing a potential method for continuous monitoring of a battery system. It was observed, however, that shifts in data are difficult to detect in very transient systems.

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A novel online measurement technique for AC impedance of batteries and other electrochemical systems

Cited by 13 publications

References 9 publications

A Novel Thermo-Electric Coupling Model of Batteries for Electric Vehicles Application

A Novel Thermo-Electric Coupling Model of Batteries for Electric Vehicles Application

Determination of Battery Stability with Advanced Diagnostics

Determination of battery stability with advanced diagnostics

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