High-quality TEM specimen preparation for lithium-ion …
2023年11月1日 · Low-energy Ar + ion milling is utilized to remove the surface amorphous layer of lithium-ion conducting solid electrolyte TEM specimens after FIB milling. Experimental milling parameters are evaluated and optimized to prepare the TEM specimen with thinner amorphous layer and less ion beam damage.
Unveiling crystal orientation-dependent interface property in
2024年9月11日 · Taking a representative layered cathode material Li(Ni 1/3 Co 1/3 Mn 1/3)O 2 (NCM) and perovskite-type oxide solid electrolyte Li 3x La (2/3)-x ⎕ (1/3)−2x TiO 3 (LLTO) system, we probe the ...
Single-atom-layer traps in a solid electrolyte for lithium batteries
2020年4月14日 · In a prototype solid electrolyte Li 0.33 La 0.56 TiO 3 (LLTO) 3, 32, closed loops formed by a kind of single-atom-layer 2D defect are found ubiquitous by electron microscopy observation; a term...
Processing thin but robust electrolytes for solid-state batteries …
2021年2月1日 · Perovskite-type LLTO is another class of materials that has been intensively studied as solid-state electrolytes in both polycrystalline pellet and thin-film form.
Lithium storage in perovskite lithium lanthanum titanate
2013年7月1日 · Perovskite lithium lanthanum titanate (LLTO) was synthesized using sol–gel method. It shows a reversible capacity of 145 mA h g − 1 and moderate cycling performance between 0.01 and 2.00 V. Cyclic voltammetry and X-ray diffraction results demonstrate a two-step solid–solution reaction behavior in the voltage range of 0.00–3.00 V upon ...
Enhanced ionic conductivity and improved ... - ScienceDirect
The BET analysis demonstrated the presence of mesopores in the template-regulated LLTO, while TEM examinations revealed a lamellar structure with a high aspect ratio. Both the mixing of the LATP powders and the non-templated LLTO powders initially increased the total conductivity of the hybrid LLTO, which peaked at 0.5 % LATP and 15 % non ...
使用低能离子精修制备高质量的锂离子导体固态电解质透射电镜样 …
2024年5月29日 · 低能离子精修仪可制备离子损伤更小、非晶层更薄的 tem 样品。 最近，上海科技大学的于奕老师团队等人使用 Gentle Mill 低能氩离子精修仪，以固态电解质 LLTO 为例，结合理论模拟和实验检查，全面对比了精修时间、加速电压、离子束流、入射角度、样品方位等 ...
郑大王景涛Angew： 首次！大尺寸无晶体缺陷的LLTO晶体，“铺 …
2021年12月7日 · 二维llto晶体的能垒为0.450 ev，而三维llto晶体的能垒为0.553 ev。 这证实了Li + 通过a轴或b轴的能垒高于通过c轴，且二维LLTO晶体中的Li + 转移主要沿c轴进行。
3D perovskite LLTO nanotubers networks for enhanced Li - Springer
2022年10月17日 · Herein, one-dimensional perovskite Li 0.33 La 0.557 TiO 3 nanotubes (LLTO NTs) were successfully synthesized by electrospinning. Pouring the mixed solution of the nanotubes with polyvinyl oxide (PEO) and lithium bisfluoromethyl sulfonate (LITFSI) to synthesize the LLTO NTs network enhanced 3D LLTO/PEO/LITFSI (PL + LLTO NTs) CSEs membranes.
Transient Phase-Mediated Li - ACS Publications
2024年9月28日 · The lithium lanthanum titanium oxide (LLTO) perovskite is one type of superior lithium (Li)-ion conductor that is of great interest as a solid-state electrolyte for all-solid-state lithium batteries. Structural defects and impurity phases formed during the synthesis of LLTO largely affect its Li-ion conductivity, yet the underlying Li ...