2024年1月25日 · 尽管观察到三种锂盐的lif富集现象相似，但在xps条件下它们的形成途径可能不同(方案s2)。 对于LiFSI，其降解为LiF涉及S-F键断裂，而剩余的SO2-NSO2F部分可能通过Ar+溅射进一步分解为更小的物质，这些物质最终会被真空移除，但不会被XPS捕获。

2025年1月27日 · In this paper, we conduct a systematic study on the reasons for the LiF artifacts in the XPS characterization of LMBs. The decomposition of the SEI and CEI components under argon ion sputtering, the reaction between Li 2 CO 3 and LiPF 6 in the electrolyte, influence of different sample pretreatments, the selection of the XPS measurement region ...

2020年4月20日 · Here we demonstrate that a rationally designed electrolyte (2.0 M LiPF 6 in 1:1 v/v mixture of tetrahydrofuran and 2-methyltetrahydrofuran) enables 100 cycles of full cells that contain microsized...

2023年2月25日 · In fluorinated linear carboxylic esters, we introduce the –F group to precisely manipulate the solvating power and facilitate the LiF-abundant interfacial chemistry, in which tFEP has the ...

Due to the low surface diffusion resistance, LiF is conducive to guiding Li+ deposition rapi... ... further confirm the composition of the LiF coating, an XPS characterization was performed....

2021年12月1日 · X-ray photoelectron spectroscopy (XPS) was used to investigate the chemical composition of Li surface, to reveal the origins of improved galvanostatic performances. Fig. 3 a-c show the XPS spectra of Li anode surface after 3 cycles for symmetric Li/Li cells at 0.2 mA cm –2.

2023年5月11日 · 研究团队通过密度泛函理论(dft)、飞行时间二次离子质谱（tof-sims）和x射线光电子能谱（xps）深入探究了teg调控锂金属沉积与剥离过程的科学机制。 DFT计算结果证实了TEG界面层诱导产生的Li x Ge合金和有机C-N组分对锂离子具有较强的吸附能，这种亲锂性的骨架 …

1995年，Kanamura等人使用XPS进一步验证了LiBF4基电解质中Li金属表面形成的SEI中存在LiF和多种有机物。 1997年，Peled及其同事根据公认的SEI化学成分，提出石墨和锂金属表面SEI的镶嵌模型。

2022年9月6日 · Herein, we present a systematic XPS study of three different Li salts, namely lithium bis(fluorosulfonyl)imide (LiFSI), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), and lithium hexafluorophosphate (LiPF 6). A side-by-side comparison reveals that the binding energies of constituent elements sensitively shift in response to their distinct ...

LiF, using the Li1s and F1s XPS peaks, appears, at first sight, to be an ideal case for high accuracy. Only 1s core-levels are involved, removing any possible angular effects, and it is a wide band-gap material, resulting in the main Li1s and F1s peaks being well separated from the following scattered electron backgrounds.