Hydrogen retention in lithium and lithium oxide films

Buzi, L.; Yang, Yuxin; Domínguez-Gutiérrez, F.J.; Nelson, A.; Hofman, Michelle S.; Krstić, Predrag; Kaita, R.; Koel, Bruce E.

doi:10.1016/j.jnucmat.2018.02.010

Cited by 21 publications

(9 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two small Si peaks were observed on the red spectrum indicated by the dark parts near the boundary. One of the peaks near 80 eV corresponds to silicon oxides. , It is suggested that the oxidation of Si, the anode active material, occurred during the charge–discharge cycle, resulting in the formation of silicon oxide in small amounts. Figure b shows the AES spectra of ASSLB-LPSI after 50 charge–discharge cycles, which indicates the same tendency as that of ASSLB-argyro.…”

Section: Resultsmentioning

confidence: 99%

Deterioration Analysis of Si Composite Anodes for All-Solid-State Batteries during Charge–Discharge by Auger Electron Spectroscopy and Scanning Electron Microscopy with Energy Dispersive Spectroscopy

et al. 2023

View full text Add to dashboard Cite

Silicon (Si) is a promising anode material for lithium-ion batteries owing to its large capacity. Herein, all-solid-state full cells using Si composite anodes and sulfide solid electrolytes were fabricated and their charge−discharge performances were evaluated. From Auger electron spectroscopy and scanning electron microscopy with energy dispersive spectroscopy analyses of the cross section of the full cells, the presence of Li 2 O in the Si composite anodes was confirmed after the 50th charge−discharge cycle. Further, the relation between the capacity deterioration mechanism of the cells using the Si composite anodes and the generation of Li 2 O was studied.

show abstract

Section: Resultsmentioning

confidence: 99%

Deterioration Analysis of Si Composite Anodes for All-Solid-State Batteries during Charge–Discharge by Auger Electron Spectroscopy and Scanning Electron Microscopy with Energy Dispersive Spectroscopy

et al. 2023

View full text Add to dashboard Cite

show abstract

“…For incident atoms reflected from a surface, the angular distributions (dN/dΩ) are calculated [27][28][29] from the number of reflected particles N(θ, δθ) into interval δθ around θ, as in [10], by…”

Section: Angular Distributionsmentioning

confidence: 99%

“…As discussed in [10,11], this long-term polarization effect can be considered in CMD by the Electronegativity Equalization Method (EEM) [15,16], in combination with reactive bond-order (BO) potentials (ReaxFF [17,18]), implemented in the Large Scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) code [19]. Interestingly, the applications of ReaxFF combined with EEM [20-22] have shown good agreement with results of quantum-classical molecular dynamics [23] using tightbinding DFT [24][25][26], as well as with experimental results [27].…”

Section: Introductionmentioning

confidence: 99%

Processes at lithium-hydride/deuteride surfaces upon low energy impact of H/D

et al. 2023

Self Cite

View full text Add to dashboard Cite

Sputtering, reflection, and retention processes at amorphous and crystalline lithium hydride surfaces due to impact of low energy (1–100 eV) hydrogen and deuterium atoms over the range of 0o −85o angle of incidence at 300 K surface temperature were investigated by atomistic computational methods. Classical molecular dynamics simulations were performed with improved reactive bond-order force field (ReaxFF) potentials that include long-range polarization effects. In addition to probabilities of surface processes, the energy and angular spectra of ejected particles were obtained. Comparison of these results with those previously obtained on pristine lithium surfaces indicates the importance of saturation of the Li surface and near-surface region with hydrogen. We show that such saturation, which is typical in both laboratory and fusion device experiments with lithium coating of the plasma-facing surfaces, significantly changes the surface processes with hydrogen irradiation in the understudied low-energy region of impact energies.

show abstract

“…Using those PMI facilities at PPPL, we have investigated erosion, hydrogen retention, chemical state, thermal stability, and spreading of lithium films, and also characterized the surface evolution of lithium-coated surfaces in the LTX-β environment [Buzi 2018;Fasoranti 2021;Skinner 2016;Maan 2020 IEEE].…”

Section: Introductionmentioning

confidence: 99%

“…Sputtering yields and hydrogen retention at Li plasma-facing components are affected by chemical contaminants (e.g., H or D, O, C, and B), film temperature, and incident H or D ion energy and angle Buzi 2018;Allain 2002;Abrams 2015 JNM;Bedoya 2019;Krstic 2022;Krstic 2023]. Allain and Ruzic [Allain 2002] reported that the chemical state of the deuterium-treated (oxygen-removed) lithium surface plays a major role in the decrease of Li sputtering.…”

Section: Introductionmentioning

confidence: 99%

Quantitative measurement of positive and negative ion species ejected from a Li-O-H surface by hydrogen and noble gas ion irradiation

Abe

Ostrowski

Maan

et al. 2023

Preprint

View full text Add to dashboard Cite

We report sputtering yields of Li+, H−, O−, and OHx− ion species from an Li-O-H surface for H, D, He, Ne, and Ar ion irradiation at 45° incidence in the energy range of 30 − 2,000 eV. A Li film was deposited on a stainless steel target using Li evaporators in the LTX-β vessel, using the LTX-β Sample Exposure Probe (SEP), which includes an ultrahigh vacuum suitcase for transferring targets without significant contamination from air exposure. The SEP was used to transfer the Li-coated target from LTX-β to a separate Sample Exposure Station (SES) to perform ion exposure measurements. The SEP was also used for characterization of the Li-coated target utilizing X-ray photoelectron spectroscopy (XPS) in a different chamber, showing that the lithium film surface was oxidized. Ion exposures were performed using an electron cyclotron resonance (ECR) plasma source in the SES. Sputtered/ejected species were sampled by a quadrupole mass spectrometer with capabilities for detecting positive and negative ions, and an energy filter for determining the mean kinetic energy of the ejected ion species. All ion irradiations caused Li+ ions to be ejected, while causing impurity ions such as H+, H−, O− and OH− to be ejected. Our results for the sputtering yields of ejected ion species and their associated ion energies from a Li-O-H surface indicates that lithium sputtering is suppressed and impurity removal is enhanced due to the sheath potential at the divertor surface for fusion reactor applications.

show abstract

Hydrogen retention in lithium and lithium oxide films

Cited by 21 publications

References 42 publications

Deterioration Analysis of Si Composite Anodes for All-Solid-State Batteries during Charge–Discharge by Auger Electron Spectroscopy and Scanning Electron Microscopy with Energy Dispersive Spectroscopy

Deterioration Analysis of Si Composite Anodes for All-Solid-State Batteries during Charge–Discharge by Auger Electron Spectroscopy and Scanning Electron Microscopy with Energy Dispersive Spectroscopy

Processes at lithium-hydride/deuteride surfaces upon low energy impact of H/D

Quantitative measurement of positive and negative ion species ejected from a Li-O-H surface by hydrogen and noble gas ion irradiation

Contact Info

Product

Resources

About