High-temperature Corrosion of CrAlSiN Thin Films in N2/0.1%H2S Gas

doi:10.3365/kjmm.2018.56.4.272

Cited by 1 publication

(2 citation statements)

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“…50 The plasmaized Si reacts with the O 2 gas remaining in the CAPD chamber to generate the Si oxides. 51,52 The presence of SiO 2 is consistent with the diffraction spots observed in the ED pattern, at approximately 3.64 Å. In the Si 2p spectrum, the main peaks are observed at 99.0 and 98.4 eV, which may be assigned to the Si−Si bonds of Si 0 .…”

Section: Structures Of the Si Films Fabricated Via Capdsupporting

confidence: 82%

“…56 Si−O is derived from the reaction of plasmaized Si with the O 2 gas remaining in the CAPD chamber. 51,52 The S 1s and P 1s HAXPES peaks observed at 2470.0 and 2148.9 eV, respectively, may be assigned to the PS 4 3− bonds in amorphous Li 3 PS 4 , 35 which corresponds to the Li 3 PS 4 film. Another P 1s peak observed at 2146.5 eV is assigned to the P 2 S 6 4− bonds.…”

Section: Fabrication and Electrochemicalmentioning

confidence: 98%

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Formation Processes of a Solid Electrolyte Interphase at a Silicon/Sulfide Electrolyte Interface in a Model All-Solid-State Li-Ion Battery

Asano,

Hata,

Watanabe

et al. 2024

ACS Appl. Mater. Interfaces

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Understanding the electrochemical reactions at the interface between a Si anode and a solid sulfide electrolyte is essential in improving the cycle stabilities of Si anodes in all-solidstate batteries (ASSBs). Highly dense Si films with very low roughnesses of <1 nm were fabricated at room temperature via cathodic arc plasma deposition, which led to the formation of a Si/ sulfide electrolyte model interface. Li (de)alloying through the model interface hardly occurred during the first cycle, whereas it proceeded stably in subsequent cycles. Hard X-ray photoelectron spectroscopy and neutron reflectometry directly revealed that the reduction or oxidation of the interfacial component or Li 3 PS 4 electrolyte occurred during the first cycle. Consequently, an interfacial layer with a thickness of 13 nm and primarily composed of Li 2 S, SiS 2 , and P 2 S 5 glasses was formed during the first cycle. The interfacial layer acted as a Li-conductive, electron-insulating solid electrolyte interphase (SEI) that provided reversible (de)lithiation. Our model interface directly demonstrates the electrochemical reaction processes at the Si/Li 3 PS 4 interface and provides insights into the structures and electrochemical properties of SEIs to activate the (de)lithiation of Si anodes using a sulfide electrolyte.

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Section: Structures Of the Si Films Fabricated Via Capdsupporting

confidence: 82%