Electrochemical impedance spectroscopy analysis for lithium-ion battery using Li4Ti5O12 anode

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49 Citations (Scopus)

Abstract

The impedance of Li-ion battery using a Li4Ti5O12 (LTO) anode for high-power applications was measured at various depths of discharge and temperatures during chargeedischarge cycles. The measured impedance was interpreted with an equivalent circuit made up of anode and cathode, in which the cathode component was composed of two particle size factors. The values obtained for equivalent circuit elements by modeling were in good agreement with the results measured by other techniques, and indicated that the capacity fade of this Li-ion battery due to cycling is mainly caused by the increase of interfacial resistance and a decrease in the capacity of the LiCoO2 cathode. These results suggest that the cyclability of this LIB was improved by using an LTO anode, and show the validity of the equivalent circuit for interpreting the causes of capacity fade.

Original languageEnglish
Pages (from-to)442-447
Number of pages6
JournalJournal of Power Sources
Volume222
DOIs
Publication statusPublished - 2013 Jan 15

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Electrochemical impedance spectroscopy
equivalent circuits
Equivalent circuits
electric batteries
Anodes
Cathodes
anodes
lithium
cathodes
impedance
spectroscopy
ions
cycles
Particle size
causes
Lithium-ion batteries
Temperature
temperature

Keywords

  • Capacity fade
  • Electrochemical impedance spectroscopy
  • Li-ion battery
  • LiTiO anodes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

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title = "Electrochemical impedance spectroscopy analysis for lithium-ion battery using Li4Ti5O12 anode",
abstract = "The impedance of Li-ion battery using a Li4Ti5O12 (LTO) anode for high-power applications was measured at various depths of discharge and temperatures during chargeedischarge cycles. The measured impedance was interpreted with an equivalent circuit made up of anode and cathode, in which the cathode component was composed of two particle size factors. The values obtained for equivalent circuit elements by modeling were in good agreement with the results measured by other techniques, and indicated that the capacity fade of this Li-ion battery due to cycling is mainly caused by the increase of interfacial resistance and a decrease in the capacity of the LiCoO2 cathode. These results suggest that the cyclability of this LIB was improved by using an LTO anode, and show the validity of the equivalent circuit for interpreting the causes of capacity fade.",
keywords = "Capacity fade, Electrochemical impedance spectroscopy, Li-ion battery, LiTiO anodes",
author = "Tao Hang and Daikichi Mukoyama and Hiroki Nara and Norio Takami and Toshiyuki Momma and Tetsuya Osaka",
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T1 - Electrochemical impedance spectroscopy analysis for lithium-ion battery using Li4Ti5O12 anode

AU - Hang, Tao

AU - Mukoyama, Daikichi

AU - Nara, Hiroki

AU - Takami, Norio

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

PY - 2013/1/15

Y1 - 2013/1/15

N2 - The impedance of Li-ion battery using a Li4Ti5O12 (LTO) anode for high-power applications was measured at various depths of discharge and temperatures during chargeedischarge cycles. The measured impedance was interpreted with an equivalent circuit made up of anode and cathode, in which the cathode component was composed of two particle size factors. The values obtained for equivalent circuit elements by modeling were in good agreement with the results measured by other techniques, and indicated that the capacity fade of this Li-ion battery due to cycling is mainly caused by the increase of interfacial resistance and a decrease in the capacity of the LiCoO2 cathode. These results suggest that the cyclability of this LIB was improved by using an LTO anode, and show the validity of the equivalent circuit for interpreting the causes of capacity fade.

AB - The impedance of Li-ion battery using a Li4Ti5O12 (LTO) anode for high-power applications was measured at various depths of discharge and temperatures during chargeedischarge cycles. The measured impedance was interpreted with an equivalent circuit made up of anode and cathode, in which the cathode component was composed of two particle size factors. The values obtained for equivalent circuit elements by modeling were in good agreement with the results measured by other techniques, and indicated that the capacity fade of this Li-ion battery due to cycling is mainly caused by the increase of interfacial resistance and a decrease in the capacity of the LiCoO2 cathode. These results suggest that the cyclability of this LIB was improved by using an LTO anode, and show the validity of the equivalent circuit for interpreting the causes of capacity fade.

KW - Capacity fade

KW - Electrochemical impedance spectroscopy

KW - Li-ion battery

KW - LiTiO anodes

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