Oriented Crystal Growth of La0.557Li0.330TiO3 in Bulk Ceramics Induced by LaAlO3 Single-Crystal Fibers

Wang, Tao; Oliveira, Rafael Bonacin de; Andreeta, Marcello Rubens Barsi; Wang, Haoyuan; Jia, Zhitai; Tao, Xutang

doi:10.1021/acs.cgd.0c01518

Cited by 7 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1d), while NCM(104) and LLTO(020) planes are clearly visible in NCM104 (indicated with blue dots in Fig. 1e) [43][44][45] , verifying the intended interfacial growth. The interface in NCM003 is notably at with a clear boundary between NCM and LLTO, contrasting with the NCM104, which exhibits a relatively rough interface featuring island-like NCM(104) domains.…”

Section: Resultsmentioning

confidence: 60%

Unveiling crystal orientation-dependent interface property in composite cathodes for solid-state batteries by in situ microscopic probe

Kang,

Park,

Lee

et al. 2024

Preprint

View full text Add to dashboard Cite

One of the most critical bottlenecks toward all-solid-state batteries lies in how the solid(electrode)-solid(electrolyte) interface can be seamlessly fabricated and maintained over repeated electrochemical cycles. Conventional composite cathodes, with their randomly distributed cathode and electrolyte particles, present a range of crystallographically distinct electrode/electrolyte interfaces, each with varying chemical and electrochemical compatibilities, thereby adding more considerable complexities. Herein, as a first step to unravel the complexity of the interface, we employ an epitaxial model system in which the crystal orientations of cathode (e.g., Li(Ni1/3Co1/3Mn1/3)O2, NCM) and solid electrolyte (e.g., Li3xLa(2/3)−x⎕(1/3)−2xTiO3, LLTO) are precisely controlled, and probe the corresponding interfaces in real-time during co-sintering process by in situ heating transmission electron microscopy. The in situ observation reveals that the interfacial reaction mechanism and kinetics are highly dependent on the crystal orientation/alignment of cathode and electrolyte particles especially contingent on the availability of open ion channels at the interface. It is shown that the interfaces bearing the open ion paths of NCM such as (104) plane are more susceptible to the interdiffusion even at low temperature, however the early formation of stable passivation layer effectively suppresses the increase in the overall interfacial resistance. On the other hand, the interfaces with the closed ion pathway of NCM such as (003) plane exhibit a relatively high stability up to intermediate temperatures of co-sintering, but deteriorate more rapidly at high temperature as a result of oxygen evolution and decomposition, thereby displaying a higher interfacial resistance. The elucidation of these distinct behaviors of representative interfaces not only deepens our understanding of composite cathodes but also emphasizes the need for decoupling collective interfacial properties to enable rational interfacial design in solid-state batteries.

show abstract

Section: Resultsmentioning

confidence: 60%

Unveiling crystal orientation-dependent interface property in composite cathodes for solid-state batteries by in situ microscopic probe

Kang,

Park,

Lee

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Unfortunately, the present research disregards the effects of the LaAlO 3 perovskite preparation procedure [23][24][25]. For instance, a high sintering temperature results in irregular particles and rough grains, which restricts the optical characteristics [26,27].…”

Section: Introductionmentioning

confidence: 98%

Optimizing the Structure and Optical Properties of Lanthanum Aluminate Perovskite through Nb5+ Doping

Liu,

Zou,

Chen

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

This work involves the introduction of niobium oxide into lanthanum aluminate (LaAlO3) via a conventional solid-state reaction technique to yield LaAlO3:Nb (LaNbxAl1−xO3+δ) samples with Nb5+ doping levels ranging from 0.00 to 0.25 mol%. This study presents a comprehensive investigation of the effects of niobium doping on the phase evolution, defect control, and reflectance of LaNbxAl1−xO3+δ powder. Powder X-ray diffraction (XRD) analysis confirms the perovskite structure in all powders, and XRD and transmission electron microscopy (TEM) reveal successful doping of Nb5+ into LaNbxAl1−xO3+δ. The surface morphology was analyzed by scanning electron microscopy (SEM), and the results show that increasing the doping concentration of niobium leads to fewer microstructural defects. Oxygen vacancy defects in different compositions are analyzed at 300 K, and as the doping level increases, a clear trend of defect reduction is observed. Notably, LaNbxAl1−xO3+δ with 0.15 mol% Nb5+ exhibits excellent reflectance properties, with a maximum infrared reflectance of 99.7%. This study shows that LaNbxAl1−xO3+δ powder materials have wide application potential in the field of high reflectivity coating materials due to their extremely low microstructural defects and oxygen vacancy defects.

show abstract

Research Progress on the Composite Methods of Composite Electrolytes for Solid‐State Lithium Batteries

Wang,

Huang,

Peng

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

In the current challenging energy storage and conversion landscape, solid‐state lithium metal batteries with high energy conversion efficiency, high energy density, and high safety stand out. Due to the limitations of material properties, it is difficult to achieve the ideal requirements of solid electrolytes with a single‐phase electrolyte. A composite solid electrolyte is composed of two or more different materials. Composite electrolytes can simultaneously offer the advantages of multiple materials. Through different composite methods, the merits of various materials can be incorporated into the most essential part of the battery in a specific form. Currently, more and more researchers are focusing on composite methods for combining components in composite electrolytes. The ion transport capacity, interface stability, machinability, and safety of electrolytes can be significantly improved by selecting appropriate composite methods. This review summarizes the composite methods used for the components of composite electrolytes, such as filler blending, embedded framework, and multilayer bonding. It also discusses the future development trends of all‐solid‐state lithium batteries (ASSLBs).

show abstract

Oriented Crystal Growth of La_0.557Li_0.330TiO₃ in Bulk Ceramics Induced by LaAlO₃ Single-Crystal Fibers

Cited by 7 publications

References 44 publications

Unveiling crystal orientation-dependent interface property in composite cathodes for solid-state batteries by in situ microscopic probe

Unveiling crystal orientation-dependent interface property in composite cathodes for solid-state batteries by in situ microscopic probe

Optimizing the Structure and Optical Properties of Lanthanum Aluminate Perovskite through Nb5+ Doping

Research Progress on the Composite Methods of Composite Electrolytes for Solid‐State Lithium Batteries

Contact Info

Product

Resources

About