Ultrafast laser induced breakdown spectroscopy of electrode/electrolyte interfaces

Zorba, Vassilia; Syzdek, Jarosław; Mao, Xianglei; Russo, Richard E.; Kostecki, Robert

doi:10.1063/1.4724203

Cited by 53 publications

(34 citation statements)

References 38 publications

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“…In contrast, laser induced breakdown spectroscopy (LIBS) can provide detailed information on the distribution of the elements by sampling small sample volumes, thus increasing the sensitivity to small phase fractions, and allows bulk elemental mapping [23]. Elemental atomic ratio maps of major (Li, La, Zr) and minor element (Al) distribution were obtained using femtosecond LIBS.…”

Section: Resultsmentioning

confidence: 99%

Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li₇La₃Zr₂O₁₂

et al. 2014

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Al-substituted Li 7 La 3 Zr 2 O 12 (LLZO) pellets with a grain size of 100-200 µm and a relative density of 94% were prepared by conventional solid-state processing at a sintering temperature of 1100° C, 130°C lower than previously reported. Morphological features and the presence of impurities were evaluated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDS). Femtosecond Laser Induced Breakdown Spectroscopy (LIBS) was used to visualize the distribution of impurities. The results suggest that chemical composition of the powder cover strongly affects morphology and impurity formation, and that particle size control is critical to densification. These properties, in turn, strongly affect total ionic conductivity and interfacial resistance of the sintered pellets.3

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Section: Resultsmentioning

confidence: 99%

Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li₇La₃Zr₂O₁₂

et al. 2014

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“…[ 12 ] Clarifying the impact of electrode active materials on the formation, composition and stability of the SEIs is an important step towards understanding and control of the SEIs in batteries, which remains one of the most challenging and critical issues in battery technology. [ 4,5,13 ] Tin has been proposed as an alternative lithium storage anode material to replace graphite. It has attracted signifi cant attention over the past several years, because it offers a large specifi c capacity (993 mAh g −1 for Li 22 Sn 5 ) [ 14,15 ] as compared to graphite (372 mAh g −1 for LiC 6 ).…”

Section: Introductionmentioning

confidence: 99%

Distinct Solid‐Electrolyte‐Interphases on Sn (100) and (001) Electrodes Studied by Soft X‐Ray Spectroscopy

Qiao

Lucas

Karim

et al. 2014

Adv Materials Inter

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103

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Soft X‐ray absorption spectroscopy with different probe depth was employed to characterize the solid electrolyte interphases (SEIs) formed on β‐Sn single crystals with two different surface orientations. Based on comparative studies of C‐K, O‐K, and F‐K absorption spectra between the SEIs and reference samples, SEI on Sn (100) mainly consists of porous Li2CO3 species with electrolyte uptake, while SEI on Sn (001) essentially consists of LiF and organic molecules, with a small amount of –CO3 and electrolyte buried inside. Theoretical calculation suggests that Sn (001) surface is more reactive than (100), especially after air exposure. The reactive (001) surface facilitates the decomposition of LiPF6 to form a LiF layer. In contrast, SEI on (100) surface is predominately from the typical decomposition of carbonate‐based electrolyte. While the LiF passivates Sn (001) electrode after one cycle, the porous carbonate layer on (100) surface does not prevent further decomposition of electrolyte after many cycles. This leads to drastically different electrochemical behavior and morphology of the two SEIs. The result is a direct proof that surface properties of active materials could strongly impact the SEI formation on electrodes even with the same electrolyte. Such effect could lead to distinct SEI formation and electrochemical performance.

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“…The recent advancements in fs laser technology stimulated the development of a new field called ultrafast laserinduced breakdown spectroscopy (ULIBS), or fs LIBS. [1][2][3] Even though the only difference between the conventional ns laser based LIBS and ULIBS is the difference in laser system, the mechanisms leading to energy absorption and subsequent target ablation are entirely different for both cases due to significant higher rate of energy deposition in fs laser ablation (LA). Approximate time scales of ns and fs laser energy absorption and ablation, along with various processes occurring during and after the laser pulse, are given in detail elsewhere.…”

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Electron-ion relaxation time dependent signal enhancement in ultrafast double-pulse laser-induced breakdown spectroscopy

Harilal

Diwakar

Hassanein

2013

Applied Physics Letters

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We investigated the emission properties of collinear double-pulse compared to single-pulse ultrafast laser induced breakdown spectroscopy. Our results showed that the significant signal enhancement noticed in the double pulse scheme is strongly correlated to the characteristic electron-ion relaxation time and hence to the inter-pulse delays. Spectroscopic excitation temperature analysis showed that the improvement in signal enhancement is caused by the delayed pulse efficient reheating of the pre-plume. The signal enhancement is also found to be related to the upper excitation energy of the selected lines, i.e., more enhancement noticed for lines originating from higher excitation energy levels, indicating reheating is the major mechanism behind the signal improvement.

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Ultrafast laser induced breakdown spectroscopy of electrode/electrolyte interfaces

Cited by 53 publications

References 38 publications

Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li₇La₃Zr₂O₁₂

Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li₇La₃Zr₂O₁₂

Distinct Solid‐Electrolyte‐Interphases on Sn (100) and (001) Electrodes Studied by Soft X‐Ray Spectroscopy

Electron-ion relaxation time dependent signal enhancement in ultrafast double-pulse laser-induced breakdown spectroscopy

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Ultrafast laser induced breakdown spectroscopy of electrode/electrolyte interfaces

Cited by 53 publications

References 38 publications

Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li7La3Zr2O12

Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li7La3Zr2O12

Distinct Solid‐Electrolyte‐Interphases on Sn (100) and (001) Electrodes Studied by Soft X‐Ray Spectroscopy

Electron-ion relaxation time dependent signal enhancement in ultrafast double-pulse laser-induced breakdown spectroscopy

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Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li₇La₃Zr₂O₁₂

Effect of microstructure and surface impurity segregation on the electrical and electrochemical properties of dense Al-substituted Li₇La₃Zr₂O₁₂