2025年3月1日 · Understanding the electrochemical oxidation of Li 2 CO 3 is crucial for optimizing battery performance, enhancing lifespan, and ensuring safety. Exploring approaches to utilize Li 2 CO 3 as an artificial interface layer can help improve overall battery performance and reliability.

2017年2月14日 · The valence electronic structures of Li 2 CO 3, Li 2 O, Li 2 O 2, and LiOH were determined by soft X-ray emission spectroscopy (XES) at the oxygen K-edge. To ensure the collection of representative high-quality spectra, beam damage effects were characterized, and their influence on the spectral characteristics was minimized by limiting the ...

The O K-edge near-edge X-ray absorption fine structure (NEXAFS) spectra of BiOCl, Bi 2 O 2 (CO 3 ) x Cl y and reference samples are shown in Fig. 2d.

Li2CO3 is Clathrate-derived structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Li1+ is bonded to four O2- atoms to form a mixture of corner and edge-sharing LiO4 tetrahedra.

2020年6月20日 · By adding common impurities in Li-ion battery electrolytes as ethanol and ethylene glycol, whose electrochemical oxidation at rather low anodic potentials (≈ 3.5 V vs Li+ /Li) results in the formation of protons, the onset of CO 2 evolution from Li 2 CO 3 is accordingly shifted to such low potentials.

Download scientific diagram | Panel (a) shows the experimental Li K-edge sXAS spectra of LiF, LiCl, LiOH, Li2O, Li2O2 and Li2CO3. Panel (b) shows the theoretical counterparts simulated with...

2013年2月28日 · In this paper, we identify the dominant Li diffusion carriers in Li 2 CO 3 over a voltage range (0–4.4 V) that includes typical anode and cathode materials by computing and comparing thermodynamics of all seven Li-associated …

2023年6月30日 · We found that LiF/Li 2 CO 3 -rich heterostructured solid electrolyte interphase (SEI) could improve the battery rate capability due to the rapid Li + transfer [24].

2019年12月11日 · Understanding the effects of air exposure on garnet structure stability, ion mobility, and interfacial configuration is crucial for better applications of solid garnet electrolytes. In this Perspective, we comprehensively recapitulate the reaction mechanisms and influencing factors of air-induced contaminations.

In this work, we present a systematic study with position, time and irradiation dependent Li K -edge soft x-ray XAS spectroscopy on Li 2 O, Li 2 O 2 , and Li 2 CO 3 compounds.