Jan 15, 2023 · The TEM results show that the SC-NCM811-Ti-2 % can maintain better structural stability in long the cycle, and the degree of surface phase transition is significantly reduced, resulting in better electrochemical performance.

Jun 16, 2020 · We have performed a transmission electron microscope (TEM) analysis on single particles of NCM. From the bright-field TEM images and corresponding selected area electron diffraction...

Feb 1, 2024 · The revival of layered phase (LP) from the degraded rock salt (RS) structure is a critical step in the direct regeneration of NCM materials. We used in situ TEM to observe this phase transformation process upon heating of MS-NCM.

Jul 5, 2023 · High-resolution TEM images of the layered NCM phase (R 3 ¯ m) degraded to a NiO (rock salt)-like structure (F m 3 ¯ m), as well as the formation of a LaNiO 3 -like transition phase between LLZO and NCM grains in direct contact, are presented for samples co-sintered at a temperature as low as 500°C.

Most valuable information about the nanostructure of these materials was obtained by (HR)TEM, allowing to detect coherently embedded Li 2 MnO 3-like nanodomains with altered cation ordering compared to the NCM host matrix and stacking faults within these domains.

Dec 6, 2023 · Here we propose an inert phase of La 2 Mo 2 O 9 with abundant oxygen vacancies (about 41%) by regulating the annealing temperature to engineer the cathode interface beyond conventional...

Jan 28, 2019 · The phase transition temperatures were 40°C higher than that of NCM. In consistence with the HR-TEM results, the introduction of LFP helped to improve structural stability of NCM, and the inhibition of phase transformation played an important role in ameliorating safety.

In this study HRTEM images of the interface of co-sintered LLZO|NCM composites have been obtained, imaging a phase transformation to a LaNiO3-like phase for the first time.

Apr 21, 2022 · Direct investigation of the defect formation processes in nickel-rich NCM would provide insight for the design of layered electrode materials with enhanced structural integrity that can...

TEM and high-resolution TEM (HRTEM) images for the corresponding (c,e) Pristine NCM and (d,f) AP-NCM cathodes. Magnified HRTEM images showing the NCM (101) surface in (e), and the...