EIS study on the formation of solid electrolyte interface in Li-ion battery

Zhang, Sheng S.; Xu, Ke; Jow, T. Richard

doi:10.1016/j.electacta.2005.02.137

Cited by 584 publications

(386 citation statements)

References 21 publications

Supporting

Mentioning

369

Contrasting

Unclassified

Order By: Relevance

“…It has been applied to a wide range of different fields as fuel cells [5][6][7][8][9][10], batteries [11][12], coatings [13][14], electrochemical reaction kinetics [15], electrochemical sensors [16][17][18][19], supercapacitors [20][21][22] and dielectrics [23]. This electrochemical measurement technique has also been used in fields that are not traditionally linked to electrochemistry as enzymatic kinetics [24], cancer detection [25], biochemistry [26][27] and immunology [28][29] amongst others.…”

Section: Introductionmentioning

confidence: 99%

Total harmonic distortion based method for linearity assessment in electrochemical systems in the context of EIS

Giner-Sanz

Ortega

Pérez-Herranz

2015

Electrochimica Acta

View full text Add to dashboard Cite

ElsevierGiner Sanz, JJ.; Ortega Navarro, EM.; Pérez-Herranz, V. (2015). Total harmonic distortion based method for linearity assessment in electrochemical systems in the context of EIS. Electrochimica Acta. 186:598-612. doi:10.1016Acta. 186:598-612. doi:10. /j.electacta.2015 Electrochemical Impedance Spectroscopy (EIS) is a widely used electrochemical measurement technique that has been used in a great spectrum of fields since it allows deconvolving the individual physic-chemical processes that take place in a given system. Ohm's generalized law, and thus the impedance concept, are only valid if 4 conditions are fulfilled: causality, finiteness, stationarity and linearity. In the case that any of these conditions is not achieved, the obtained impedance spectra will present distortions that may lead to biased or even erroneous results and conclusions. For this reason it is crucial to verify if the 4 conditions are fulfilled, before accepting the results extracted from impedance spectra. In this work, a linearity assessment quantitative method based in the total harmonic distortion (THD) parameter is presented and verified experimentally. The experimental validation of the implemented method showed that the implemented method is able to assess quantitatively the linearity of the system. In addition, it is also able to determine the threshold frequency above which the system will not present significant nonlinear effects even for large perturbation amplitudes. It was observed that the THD method is more sensitive to nonlinear effects than the spectra themselves.

show abstract

Section: Introductionmentioning

confidence: 99%

Total harmonic distortion based method for linearity assessment in electrochemical systems in the context of EIS

Giner-Sanz

Ortega

Pérez-Herranz

2015

Electrochimica Acta

View full text Add to dashboard Cite

show abstract

“…20 Additionally, the shutdown mechanism of the used trilayered separator could contribute to the resistance increase. According to Venugopal et al, 21 a sharp rise in impedance at around 165 • C has been observed in the case of a PP/PE/PP separator, indicating the shutdown effect in the separator.…”

Section: Resultsmentioning

confidence: 99%

Performance and the Characteristics of Thermally Stressed Anodes in Lithium Ion Cells

Bohn

Barragan²,

Komsiyska³

et al. 2015

J. Electrochem. Soc.

View full text Add to dashboard Cite

A new laboratory lithium ion cell in two electrode arrangement has been developed in order to apply in-situ short-term thermal stress tests to both electrodes. Cells were made from commercially available LiCoO 2 cathodes, graphite anodes and electrolyte. A 60 s thermal stress was applied with different temperatures ranging from 100 to 250 • C at the anode side after the cell formation and capacity tests. By comparison of the charge-discharge behavior of the cells before and after the thermal stress, capacity losses, increasing overvoltages and self-discharge have been observed as a function of the stress temperature. For detection of changes in the anode properties scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and computed tomography (CT) characterizations were used, and changes in the morphology and composition of the solid electrolyte interfaces (SEI) layer were observed. Long term cycling and the corresponding capacity and power fade in lithium-ion batteries has recently been extensively studied.1,2 Several aging mechanisms on the single components are proposed in the literature. The degradation reactions are complex, coupled, and dependent on cell chemistry, design and manufacturing procedures used. 3Many studies report the thermal behavior and stability of single components, revealing that elevated temperatures could cause irreversible damage to the materials. [4][5][6][7] Lithium-ion cells face multiple production processes during the fabrication of a high-end battery system, such as contact welding. Depending on the welding technique, the cells are briefly exposed to elevated temperatures of up to several hundred• C. However, to our knowledge no information is available about the influence of such short-term thermal stress conditions on the cell performance and components properties.In the current contribution the anode side of a single lithium cobalt oxide/graphite Li-ion cell was thermally stressed for 60 s at different temperatures and the effects of short-term thermal stress were demonstrated for the first time. To conduct the study a new laboratory cell was developed, allowing in-situ thermal stress tests on both electrodes. The present manuscript is an extended version of the manuscript submitted to the International Meeting on Lithium Batteries 2014 issue of ECS Transaction, 62 (1) 189-196 (2014). ExperimentalMaterial.-Commercially available LiCoO 2 cathodes and graphite anodes from MTI Corporation (Richmond, USA) were used. According to the material specifications provided by the supplier, the anodes contain composite graphite as active material with specific area of 3∼5 m 2 /g and specific capacity of 330 mAh/g. The active material loading is 80 g/m 2 . The active material used in the cathode is LiCoO 2 with specific capacity of 145 mAh/g and loading of 200-250 g/m 2 . A standard aprotic electrolyte LP 30 (BASF, Ludwigshafen, Germany) was used containing 1 M LiPF6 and ethylene carbonate (EC) and dimethyl-carbonate (DMC) in ratio 1:1. A 25 μm trilayerd polypropylene/polyethy...

show abstract

“…5 and Table I) to determine the most applicable EQC for fitting the data. We considered an EQC by Zhang et al 58,59 ( Fig. 4c) which they have used to evaluate bulk or series resistance (R s ), solid electrolyte interface resistance (R SEI ) and charge-transfer resistance (R ct ) values in LIB cells.…”

Section: Resultsmentioning

confidence: 99%

“…[56][57][58][59][60] Zhang et al employed EIS and subsequent modelling to determine how various EQC resistance components such as bulk resistance (R b ), solid-state interface resistance (R SEI ) and charge-transfer resistance (R ct ) contribute to the total cell resistance in a LIB cell 59 and how R SEI varies in according to LIB half-cell SOC in different electrolyte mixtures. 58 Greenleaf and Zheng compared two commercial 18650 LIB cells by measuring EIS at a various SOCs and then employed physical electric circuit modelling to understand which processes take place in bigger commercial cells. 60 The purpose of this article is to broaden the application of electrochemical impedance spectroscopy from LIBs to NIBs and KIBs.…”

mentioning

confidence: 99%

Alkali-Metal Insertion Processes on Nanospheric Hard Carbon Electrodes: An Electrochemical Impedance Spectroscopy Study

Väli

Jänes

Lust

2017

J. Electrochem. Soc.

View full text Add to dashboard Cite

In this study, we report the results of electrochemical impedance spectroscopy data modelling of various battery half-cells with different alkali metal (Li, Na, K) salts. Test results of electrochemical half-cells were evaluated for the D-glucose derived hard carbon negative electrode in 1.0 M LiPF 6 + EC:DMC (1:1 volume ratio), 1.0 M NaPF 6 + EC:DMC (1:1), 1.0 M NaClO 4 + PC, 0.8 M KPF 6 + EC:DEC (1:1) and 0.8 M KPF 6 + EC:DMC (1:1) solutions at 0.5 mV s −1 potential scan rate measured within the potential region from 0.05 V to 1.2 V (vs Me/Me + ) (where Me is Li, Na or K). Modelling of electrochemical impedance spectroscopy data was employed to characterize alkali metal insertion processes in/on D-glucose derived hard carbon anode. Detailed analysis of impedance data shows that Newman equivalent circuit modified with a constant phase element can be applied for calculation of impedance spectra and fitting of calculated data to experimental ones, using non-linear least square root fitting method. Equivalent circuit fit parameters depend strongly on electrolyte composition. Very slow processes have been observed for KPF 6 Lithium-ion batteries (LIBs) are currently dominating the global portable electronics and electric vehicles market, but as the demand for LIBs rises, lithium (Li) supply might soon become the limiting factor to LIB production.1 Li and cobalt (Co) supply are under risk according to a study by British Geological Survey.2 The matter gets even worse as the need for grid-scale energy storage increases with the integration of intermittent renewable technologies such as photovoltaics and wind into the grid. Thus, a large-scale implementation of energy storage requires a battery technology that is based on cheap and abundant raw materials. Fortunately, potential alternatives do exist, because both sodium (Na) and potassium (K) have only slightly different electrochemical properties than Li and are 1000 times more abundant in the Earth's crust than Li.3-5 While the first sodium-sulfur batteries (Na-S) date back to 1968, 6 intensive research on room-temperature sodium-ion batteries has only started in recent years. 4 Hard carbons (HCs) are currently the most promising and simplest anode materials for sodium-ion batteries (NIBs). They are extensively investigated and used in some commercial Na-ion battery cells.7 Although, there are numerous papers analyzing the synthesis and electrochemical characterization of hard carbons in [8][9][10][11][12][13][14][15][16] Na-ion 17-31 battery cells, only some papers on K-ion 32,33 battery (KIB) cells have been published. There are no systematic studies on how the same carbon electrode performs in half-cells with all three Li + , Na + and K + cation containing electrolytes and how the metal cation properties affect the charge-transfer kinetics on/in the electrode.Carbon anode materials are generally divided into three classes: graphite, non-graphitized glass-like carbon (hard carbon) which cannot be graphitized even when heat-treated at very high temperature, and sof...

show abstract

EIS study on the formation of solid electrolyte interface in Li-ion battery

Cited by 584 publications

References 21 publications

Total harmonic distortion based method for linearity assessment in electrochemical systems in the context of EIS

Total harmonic distortion based method for linearity assessment in electrochemical systems in the context of EIS

Performance and the Characteristics of Thermally Stressed Anodes in Lithium Ion Cells

Alkali-Metal Insertion Processes on Nanospheric Hard Carbon Electrodes: An Electrochemical Impedance Spectroscopy Study

Contact Info

Product

Resources

About