Journal ArticleDOI
An Analysis Protocol for Three-Electrode Li-Ion Battery Impedance Spectra: Part I. Analysis of a High-Voltage Positive Electrode
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In this paper, a general transmission line equivalent-circuit model was used to exemplarily analyze the impedance of a porous high-voltage LiNi0.5Mn1.5O4 cathode.Abstract:
A key for the interpretation of porous lithium ion battery electrode impedance spectra is a meaningful and physically motivated equivalent-circuit model. In this work we present a novel approach, utilizing a general transmission line equivalent-circuit model to exemplarily analyze the impedance of a porous high-voltage LiNi0.5Mn1.5O4 (LNMO) cathode. It is based on a LNMO/graphite full-cell setup equipped with a gold wire micro-reference electrode (GWRE) to obtain impedance spectra in both, non-blocking conditions at a potential of 4.4 V cell voltage and in blocking configuration achieved at 4.9 V cell voltage. A simultaneous fitting of both spectra enables the deconvolution of physical effects to quantify over the course of 85 cycles at 40°C: a) the true charge transfer resistance (RCT), b) the pore resistance (RPore), and c) the contact resistance (RCont.). We demonstrate that the charge transfer resistance would be overestimated significantly, if the spectra are fitted with a conventionally used simplified R/Q equivalent-circuit compared to our full transmission line analysis.read more
Citations
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Journal ArticleDOI
Application of electrochemical impedance spectroscopy to commercial Li-ion cells: a review
Nina Meddings,Marco Heinrich,Frederic Overney,Jong-Sook Lee,Vanesa Ruiz,Emilio Napolitano,Steffen Seitz,Gareth Hinds,Rinaldo Raccichini,Miran Gaberšček,Juyeon Park +10 more
TL;DR: In this article, a focus review summarising best metrological practice in the application of EIS to commercial Li-ion cells is presented, highlighting the benefits and drawbacks of the technique.
Journal ArticleDOI
Editors' Choice—Washing of Nickel-Rich Cathode Materials for Lithium-Ion Batteries: Towards a Mechanistic Understanding
Journal ArticleDOI
Influence of NCM Particle Cracking on Kinetics of Lithium-Ion Batteries with Liquid or Solid Electrolyte
Raffael Ruess,Simon Schweidler,Hendrik Hemmelmann,Gioele Conforto,Anja Bielefeld,Anja Bielefeld,Dominik A. Weber,Joachim Sann,Matthias T. Elm,Jürgen Janek,Jürgen Janek +10 more
TL;DR: Li et al. as mentioned in this paper investigated the lithium transport kinetics in NCM-811 as typical Ni-rich material and showed that secondary particle cracking improves the initial charge and discharge kinetics of NCM in liquid electrolytes, while it degrades the corresponding kinetics for solid electrolytes.
Journal ArticleDOI
Editors' Choice—Capacity Fading Mechanisms of NCM-811 Cathodes in Lithium-Ion Batteries Studied by X-ray Diffraction and Other Diagnostics
Franziska Friedrich,Benjamin Strehle,Anna T. S. Freiberg,Karin Kleiner,Sarah J. Day,Christoph Erk,Michele Piana,Hubert A. Gasteiger +7 more
Journal ArticleDOI
Critical Review of the Use of Reference Electrodes in Li-Ion Batteries: A Diagnostic Perspective
TL;DR: In this article, the authors present a comprehensive review of the range of reference electrode (RE) types and configurations reported in the literature, with a focus on critical aspects such as electrochemical methods of analysis, cell geometry, and chemical composition of the RE and influence of the electrolyte.
References
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Book
Electrochemical Impedance Spectroscopy
TL;DR: In this paper, the authors provide guidelines for experimental design, discuss the relevance of accuracy contour plots to wiring and instrumentation selection, and emphasize the importance of the Kramers-Kronig relations to data validation and analysis.
Journal ArticleDOI
A review of conduction phenomena in Li-ion batteries
TL;DR: A comprehensive survey of conduction phenomena in all components of a Li-ion cell incorporating theoretical, experimental, and simulation studies is presented in this paper, where the critical results, issues and challenges with respect to ionic and electronic conduction in the cathode, anode and electrolyte are discussed.
Book
Electrochemical Impedance Spectroscopy and its Applications
TL;DR: In this paper, the fundamental processes of diffusion and faradaic reaction at electrodes are discussed and a review of the applications of these processes can be found in a forthcoming volume in this series.
BookDOI
Electrochemical Impedance Spectroscopy: Orazem/Electrochemical
Mark E. Orazem,Bernard Tribollet +1 more
Book
Impedance Spectroscopy: Applications to Electrochemical and Dielectric Phenomena
TL;DR: In this article, the authors present a detailed overview of electrochemical impedance spectroscopy applications and their applications in the field of biomedical devices and industrial colloids and lubricants, as well as the applications of EIS analysis applications.