Diffusion coefficient measurements of La2/3−Li3TiO3 using neutron radiography

Takai, Shigeomi; Matsumoto, Takao; Kawabata, Yuji; Esaka, Takao

doi:10.1016/j.ssi.2005.06.012

Cited by 26 publications

(14 citation statements)

References 21 publications

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“…Despite a high‐reported bulk conductivity of 10 −3 S/cm for LLTO, whether this value represents the intrinsic lattice conductivity is still not sure yet since large discrepancy exists among the activation energies obtained from experiments (0.35–0.4 eV) and simulation computations (0.22–0.24 eV). Recently, Moriwake et al proposed that 90° domain boundaries could be an important factor influencing the bulk ionic conductivity of LLTO.…”

Section: Perovskite‐type Electrolytesmentioning

confidence: 98%

“…163 Partial substitution of A-site cations by Nd 3+ can minimize lattice distortion and yield a solid solution of strongly disordered A-sites, which improves the bulk ionic conductivity. 169 Despite a high-reported bulk conductivity of 10 À3 S/cm for LLTO, whether this value represents the intrinsic lattice conductivity is still not sure yet since large discrepancy exists among the activation energies obtained from experiments (0.35-0.4 eV 153,170 ) and simulation computations (0.22-0.24 eV 171,172 ). Recently, Moriwake et al 173 proposed that 90°domain boundaries could be an important factor influencing the bulk ionic conductivity of LLTO.…”

Section: Perovskite-type Electrolytesmentioning

confidence: 99%

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Oxide Electrolytes for Lithium Batteries

et al. 2015

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As the most promising candidate of the solid electrolyte materials for future lithium batteries, oxide electrolytes with highlithium-ion conductivity have experienced a rapid development in the past few decades. Existing oxide electrolytes are divided into two groups, i.e., crystalline group including NASICON, perovskite, garnet, and some newly developing structures, and amorphous/glass group including Li 2 O-MO x (M = Si, B, P, etc.) and LiPON-related materials. After a historical perspective on the general development of oxide electrolytes, we try to give a comprehensive review on the oxide electrolytes with high-lithium-ion conductivity, with special emphasis on the aspect of materials selection and design for applications as solid electrolytes in lithium batteries. Some successful examples and meaningful attempts on the incorporation of oxide electrolytes in lithium batteries are also presented. In the conclusion part, an outlook for the future direction of oxide electrolytes development is given.

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Section: Perovskite‐type Electrolytesmentioning

confidence: 98%

Section: Perovskite-type Electrolytesmentioning

confidence: 99%

Oxide Electrolytes for Lithium Batteries

et al. 2015

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“…The tracer‐diffusion coefficient of a tagged atom is obtained from the mean‐squared displacement of an ensemble of such atoms. It can also be directly measured by neutron radiography, [ 97,98 ] or pulsed‐field gradient nuclear magnetic resonance (PFG‐NMR). [ 99–101 ] Bron et al.…”

Section: Ionic Transportationmentioning

confidence: 99%

Li₁₀GeP₂S₁₂‐Type Superionic Conductors: Synthesis, Structure, and Ionic Transportation

Kato

Hori

Kanno

2020

Advanced Energy Materials

125

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Ever since the first report on Li10GeP2S12 (LGPS) in 2011, its unique structure and exceptionally high lithium conductivity (>1 × 10−2 S cm−1) have attracted extensive interest, especially for applications in solid‐state ionics and batteries. Herein, studies of LGPS and its modifications are reviewed with a focus on the synthesis, structure, and ionic transportation of LGPS. For material synthesis, the relationships between LGPS and its precursor compounds such as Li3PS4 and Li4GeS4 are discussed. A technique for single‐crystal growth and a family of LGPS‐type materials that are chemically or structurally related to LGPS are then described. The crystal structure of LGPS is analyzed from the viewpoints of tetrahedral framework units, anion sublattice, and Li distributions; furthermore, the conduction mechanism is qualitatively analyzed. Subsequently, ionic transportation in LGPS is studied quantitatively. The origin of the high conductivity is discussed in terms of the activation energy, diffusion coefficient, and its related parameters; and these factors are compared to those of other non‐LGPS‐type conductors. Then, the battery applications are briefly summarized to indicate the potential merits of using LGPS‐type solid electrolytes with high lithium conductivity. Any remaining issues and possible research directions that have emerged from the aforementioned studies are finally highlighted.

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“…This idea could be applied to take a dynamical picture of Li in Li ion micro-batteries consisting of thin films of several µm in thickness. Therefore, the present method could be called 8 Li microscope by analogy with the neutron transmission image of Li in a secondary Li ion battery, where the picture of Li, actually 6 Li, in the battery was taken by the neutron radiography with a resolution of mm (Takai et al, 2005). Fig.…”

Section: Aiming At Lithium Micro-and Nano-scopementioning

confidence: 99%

Diffusion Experiment in Lithium Ionic Conductors with the Radiotracer of 8Li

Jeong¹

2011

Radioisotopes - Applications in Physical Sciences

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Diffusion coefficient measurements of La2/3−Li3TiO3 using neutron radiography

Cited by 26 publications

References 21 publications

Oxide Electrolytes for Lithium Batteries

Oxide Electrolytes for Lithium Batteries

Li₁₀GeP₂S₁₂‐Type Superionic Conductors: Synthesis, Structure, and Ionic Transportation

Diffusion Experiment in Lithium Ionic Conductors with the Radiotracer of 8Li

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Diffusion coefficient measurements of La2/3−Li3TiO3 using neutron radiography

Cited by 26 publications

References 21 publications

Oxide Electrolytes for Lithium Batteries

Oxide Electrolytes for Lithium Batteries

Li10GeP2S12‐Type Superionic Conductors: Synthesis, Structure, and Ionic Transportation

Diffusion Experiment in Lithium Ionic Conductors with the Radiotracer of 8Li

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Product

Resources

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Li₁₀GeP₂S₁₂‐Type Superionic Conductors: Synthesis, Structure, and Ionic Transportation