In operando scanning electron microscopy and ultraviolet–visible spectroscopy studies of lithium/sulfur cells using all solid-state polymer electrolyte

Marceau, Hugues; Kim, Chi-Su; Paolella, Andrea; Ladouceur, Sébastien; Lagacé, Marin; Chaker, Mohamed; Vijh, Ashok K.; Guerfi, Abdelbast; Julien, C.; Mauger, A.; Armand, Michel; Hovington, Pierre; Zaghib, Karim

doi:10.1016/j.jpowsour.2016.03.093

Cited by 132 publications

(87 citation statements)

References 34 publications

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“…As shown in Figure a,b and Figure S10a,b (Supporting Information), the voltage profiles of these cells show two well‐defined discharge plateaus and two charge plateaus, similar to previous reports . The multiple plateaus indicate a multistep electrochemical process, which results in a sequence of lithium polysulfides intermediate with various compositions in the PEO‐LiTFSI SPE . At a current density of 0.2 C, the cell using SPE‐0 shows an initial discharge capacity of 898 mA h g −1 (Figure c).…”

Section: Resultssupporting

confidence: 85%

Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte–Based All‐Solid‐State Lithium–Sulfur Batteries by Atomic Layer Deposition

Fan

Ding

Zhang

et al. 2019

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Solid polymer electrolytes (SPEs)-based all-solid-state lithium-sulfur batteries (ASSLSBs) have attracted extensive research attention due to their high energy density and safe operation, which provide potential solutions to the increasing need for harnessing higher energy densities. There is little progress made, however, in the development of ASSLSBs to improve simultaneously energy density and long-term cycling life, mostly due to the "shuttle effect" of lithium polysulfide intermediates in the SPEs and the low interfacial compatibility between the metal lithium anode and the SPE. In this work, the issues of solid/solid interfacial architecturing through atomic layer deposition of Al 2 O 3 on poly(ethylene oxide)-lithium bis(trifluoromethanesulfonyl)imide SPE surface are effectively addressed. The Al 2 O 3 coating promotes the suppression of lithium dendrite formation for over 500 h. ASSLSBs fabricated with two layers of Al 2 O 3 -coated SPE deliver high gravimetric/areal capacity and Coulombic efficiency, as well as excellent cycling stability and extremely low self-discharge rate. This work provides not only a simple and effective approach to boost the electrochemical performances of SPE-based ASSLSBs, but also enriches the fundamental understanding regarding the underlying mechanism responsible for their performance.

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Section: Resultssupporting

confidence: 85%

Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte–Based All‐Solid‐State Lithium–Sulfur Batteries by Atomic Layer Deposition

Fan

Ding

Zhang

et al. 2019

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“…Lithium-sulfur batteries have a high theoretical capacity of 1,675 mAhg −1 and utilize low-cost materials. The discharge mechanism of the sulfur electrode is a complex and controversial issue, which was investigated by various in situ techniques (Nelson et al, 2012;Cañas et al, 2013;Cui et al, 2013;Cuisinier et al, 2013;Hagen et al, 2013;Patel et al, 2013;Gorlin et al, 2015;Marceau et al, 2016;Paolella et al, 2016). These studies indicate that elemental sulfur discharge is a multi-step process involving different intermediate species that are sensitive to the electrolyte and the operating conditions.…”

Section: Sulfur Cathodementioning

confidence: 99%

“…Raman spectroscopy is also used to explore the variation in the local structure and oxidation state, as well as the thermal stability of electrode surfaces or electrode-electrolyte interfaces during charge-discharge and heat treatment (Dokko et al, 2002;Hardwick et al, 2008;Membreno et al, 2013;Stancovski and Badilescu, 2013;Wu et al, 2013); FTIR is another effective tool for studying the surface and evolution of electrodeelectrolyte interfaces under cell operating conditions (Aurbach and Chusid, 1997;Chusid et al, 2001;Cheng et al, 2007;Ye et al, 2016). In addition to these spectroscopic techniques, operando SEM (Miller et al, 2013;Hovington et al, 2014;Marceau et al, 2016) and TEM (Liu, S. et al, 2014;Janish and Carter, 2015;Wang, 2015;Chen et al, 2016a;Xu et al, 2016) show the evolution of direct images of cycling electrode at the micro-and nano-scales. By combining the images with energy dispersive X-ray spectroscopy, electron energy loss spectroscopy and electron diffraction, the information on particle morphology, crystal structure, phase transformation, multi-phase interface behavior, element distribution and element positions are obtained as a function of the electrochemical process.…”

Section: Introductionmentioning

confidence: 99%

Application of Operando X-ray Diffraction and Raman Spectroscopies in Elucidating the Behavior of Cathode in Lithium-Ion Batteries

Zhu

Liu²,

Paolella³

et al. 2018

Front. Energy Res.

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With the advances in characterization techniques, various operando/in-situ methods were applied in studying rechargeable batteries in order to improve the electrochemical properties of electrode materials, prolonging the battery life and developing new battery materials. In the present review, we focus on the characterization of electrode materials with operando/in-situ X-ray diffraction and Raman spectroscopies. By correlating the results obtained via these two techniques in different electrode chemistry: (a) intercalation materials, such as layered metal oxides and (b) conversion materials, such as elemental sulfur. We demonstrate the importance of using operando/in-situ techniques in examining the microstructural changes of the electrodes under various operating conditions, in both macro and micro-scales. These techniques also reveal the working and the degradation mechanisms of the electrodes and the possible side reactions involved. The comprehension of these mechanisms is fundamental for ameliorating the electrode materials, enhancing the battery performance and lengthening its cycling life.Keywords: operando/in-situ XRD, operando/in-situ Raman, lithium-sulfur, layered metal oxide, LiFePO 4 , spinel oxide Frontiers in Energy Research | www.frontiersin.org

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“…Impedance spectroscopy has also been used to evaluate the individual contributions from electrolyte resistance, charge transfer, ion diffusion and electrode surface layers, which in turn has been used to refine mechanistic models of Li−S cells,, as well as to investigate capacity fading . Other experimental techniques used to elucidate redox and diffusion properties in Li−S cells include XAS, in‐operando optical imaging of the temporal and spatial distribution of polysulfides, UV‐Vis spectroscopy, NMR, EPR/ESR,, XRD, Raman, HPLC, and gas evolution, among other electrochemical studies . The mechanism and kinetics of Li 2 S precipitation has been studied using chronoamperometry .…”

Section: Introductionmentioning

confidence: 99%

Quantitative Galvanostatic Intermittent Titration Technique for the Analysis of a Model System with Applications in Lithium−Sulfur Batteries

et al. 2017

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The galvanostatic intermittent titration technique (GITT) is a powerful characterization tool for batteries, which provides key thermodynamic and kinetic information about battery performance. However, the quantitative analysis of GITT measurements for lithium−sulfur batteries has so far been limited to the evaluation of the internal resistance of the cell and the equilibrium voltage profiles. In this work, we provide the mathematical framework to characterize the mass‐transport kinetics in lithium−sulfur batteries from GITT data, and we demonstrate the validity of the approach through the application to a model and well‐behaved system, ethyl viologen, whose diffusion coefficient is corroborated by cyclic voltammetry data. The present approach is also advantageous for the analysis of ion‐insertion electrodes, where non‐linearity of concentration and voltage changes would produce unrealistic evaluations of the diffusion coefficient by the classical analysis of GITT data.

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In operando scanning electron microscopy and ultraviolet–visible spectroscopy studies of lithium/sulfur cells using all solid-state polymer electrolyte

Cited by 132 publications

References 34 publications

Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte–Based All‐Solid‐State Lithium–Sulfur Batteries by Atomic Layer Deposition

Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte–Based All‐Solid‐State Lithium–Sulfur Batteries by Atomic Layer Deposition

Application of Operando X-ray Diffraction and Raman Spectroscopies in Elucidating the Behavior of Cathode in Lithium-Ion Batteries

Quantitative Galvanostatic Intermittent Titration Technique for the Analysis of a Model System with Applications in Lithium−Sulfur Batteries

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