The AC Impedance Characteristic of High Power Li4Ti5O12-based Battery Cells

Ana-Irina Stroe; Daniel Loan Stroe; Maciej Jozef Swierczynski; Tiberiu Stanciu; Remus Teodorescu; Søren Knudsen Kær

doi:10.1149/07001.0291ecst

The AC Impedance Characteristic of High Power Li4Ti5O12-based Battery Cells

Ana-Irina Stroe, Daniel Loan Stroe, Maciej Jozef Swierczynski, Tiberiu Stanciu, Remus Teodorescu, Søren Knudsen Kær

Research output: Contribution to journal › Conference article in Journal › Research › peer-review

2 Citations (Scopus)

Abstract

This paper studies the impedance characteristics of a fresh 13 Ah high-power lithium titanate oxide (LTO) battery cell and analyses its dependence on the temperature and state-of-charge. The impedance of the battery cell was measured by means of the electrochemical impedance spectroscopy (EIS) technique for the entire state-of-charge (SOC) interval and considering five temperatures between 5oC and 45oC. By analyzing the measured impedance spectra of the LTO-based battery cell, it was found out that the cell’s impedance is extremely dependent on the operating conditions. By further processing the measurements data by means of curve fitting, it was found that the parameters of the equivalent electrical circuit (and the corresponding electro-chemical processes) are following different dependencies on the SOC, which in most of the cases are only slightly changing with the measurement temperature.

Original language	English
Journal	ECS Transactions
Volume	70
Issue number	1
Pages (from-to)	291-300
Number of pages	10
ISSN	1938-6737
DOIs	https://doi.org/10.1149/07001.0291ecst
Publication status	Published - 2015
Event	International Conference Advanced Batteries, Accumulators and Fuel Cells - Brno, Czech Republic Duration: 30 Aug 2015 → 3 Sept 2015 Conference number: 16

Conference

Conference	International Conference Advanced Batteries, Accumulators and Fuel Cells
Number	16
Country/Territory	Czech Republic
City	Brno
Period	30/08/2015 → 03/09/2015

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10.1149/07001.0291ecst

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ALPBES: Advanced Lifetime Predictions of Battery Energy Storage
Kær, S. K., Andreasen, S. J., Teodorescu, R., Stroe, A., Barreras, J. V., Khan, M. R. & Swierczynski, M. J.
DSF The Danish Council for Strategic Research
01/02/2013 → 30/08/2017
Project: Research

Cite this

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title = "The AC Impedance Characteristic of High Power Li4Ti5O12-based Battery Cells",

abstract = "This paper studies the impedance characteristics of a fresh 13 Ah high-power lithium titanate oxide (LTO) battery cell and analyses its dependence on the temperature and state-of-charge. The impedance of the battery cell was measured by means of the electrochemical impedance spectroscopy (EIS) technique for the entire state-of-charge (SOC) interval and considering five temperatures between 5oC and 45oC. By analyzing the measured impedance spectra of the LTO-based battery cell, it was found out that the cell{\textquoteright}s impedance is extremely dependent on the operating conditions. By further processing the measurements data by means of curve fitting, it was found that the parameters of the equivalent electrical circuit (and the corresponding electro-chemical processes) are following different dependencies on the SOC, which in most of the cases are only slightly changing with the measurement temperature.",

author = "Ana-Irina Stroe and Stroe, {Daniel Loan} and Swierczynski, {Maciej Jozef} and Tiberiu Stanciu and Remus Teodorescu and K{\ae}r, {S{\o}ren Knudsen}",

year = "2015",

doi = "10.1149/07001.0291ecst",

language = "English",

volume = "70",

pages = "291--300",

journal = "ECS Transactions",

issn = "1938-6737",

publisher = "The Electrochemical Society",

number = "1",

note = "International Conference Advanced Batteries, Accumulators and Fuel Cells, ABAF ; Conference date: 30-08-2015 Through 03-09-2015",

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T1 - The AC Impedance Characteristic of High Power Li4Ti5O12-based Battery Cells

AU - Stroe, Ana-Irina

AU - Stroe, Daniel Loan

AU - Swierczynski, Maciej Jozef

AU - Stanciu, Tiberiu

AU - Teodorescu, Remus

AU - Kær, Søren Knudsen

N1 - Conference code: 16

PY - 2015

Y1 - 2015

N2 - This paper studies the impedance characteristics of a fresh 13 Ah high-power lithium titanate oxide (LTO) battery cell and analyses its dependence on the temperature and state-of-charge. The impedance of the battery cell was measured by means of the electrochemical impedance spectroscopy (EIS) technique for the entire state-of-charge (SOC) interval and considering five temperatures between 5oC and 45oC. By analyzing the measured impedance spectra of the LTO-based battery cell, it was found out that the cell’s impedance is extremely dependent on the operating conditions. By further processing the measurements data by means of curve fitting, it was found that the parameters of the equivalent electrical circuit (and the corresponding electro-chemical processes) are following different dependencies on the SOC, which in most of the cases are only slightly changing with the measurement temperature.

AB - This paper studies the impedance characteristics of a fresh 13 Ah high-power lithium titanate oxide (LTO) battery cell and analyses its dependence on the temperature and state-of-charge. The impedance of the battery cell was measured by means of the electrochemical impedance spectroscopy (EIS) technique for the entire state-of-charge (SOC) interval and considering five temperatures between 5oC and 45oC. By analyzing the measured impedance spectra of the LTO-based battery cell, it was found out that the cell’s impedance is extremely dependent on the operating conditions. By further processing the measurements data by means of curve fitting, it was found that the parameters of the equivalent electrical circuit (and the corresponding electro-chemical processes) are following different dependencies on the SOC, which in most of the cases are only slightly changing with the measurement temperature.

U2 - 10.1149/07001.0291ecst

DO - 10.1149/07001.0291ecst

M3 - Conference article in Journal

SN - 1938-6737

VL - 70

SP - 291

EP - 300

JO - ECS Transactions

JF - ECS Transactions

IS - 1

T2 - International Conference Advanced Batteries, Accumulators and Fuel Cells

Y2 - 30 August 2015 through 3 September 2015

ER -

The AC Impedance Characteristic of High Power Li4Ti5O12-based Battery Cells

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Projects

ALPBES: Advanced Lifetime Predictions of Battery Energy Storage

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