Substitution effect of ionic conductivity in lithium ion conductor, LI3INBR6−xCLx

Tomita, Yasumasa; Matsushita, Hideyoshi; Kobayashi, Kenkichiro; Maeda, Yoichiro; Yamada, Koji

doi:10.1016/j.ssi.2008.02.012

Cited by 45 publications

(39 citation statements)

References 6 publications

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“…6) after the x = 3 composition 3,12,25 further suggests the presence of some phase separating tendency. Some of the Cl-rich compositions follow the Br-rich volume-trend, while other samples at the same composition follow the Cl-rich trend.…”

Section: -mentioning

confidence: 88%

“…X-ray diffraction further indicates a phase-separation at the x = 3 composition. 12 Accordingly, we simulated Li diffusion within a NP supercell of Br 3 (structure in Fig. 1).…”

Section: -mentioning

confidence: 99%

“…Thus, Br 3 with a nanophase microstructure reproduces the experimental trend in conductivity with alloying: Br 6 , Br 3 (NP), Br 4 , and Cl 6 (from largest to smallest). 12 Note that we simulated the NP with a 4112 Å 3 volume at 700 K and it has higher diffusivity than the solid solution with the same volume (Table SI.1 of the supplementary material). Thus, we assume that the NP will also have a higher diffusivity than the solid solution with the small volume at 500 K.…”

Section: -mentioning

confidence: 99%

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Alloying effects on superionic conductivity in lithium indium halides for all-solid-state batteries

et al. 2018

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Alloying of anions is a promising engineering strategy for tuning ionic conductivity in halide-based inorganic solid electrolytes. We explain the alloying effects in Li3InBr6−xClx, in terms of strain, chemistry, and microstructure, using first-principles molecular dynamics simulations and electronic structure analysis. We find that strain and bond chemistry can be tuned through alloying and affect the activation energy and maximum diffusivity coefficient. The similar conductivities of the x = 3 and x = 6 compositions can be understood by assuming that the alloy separates into Br-rich and Cl-rich regions. Phase-separation increases diffusivity at the interface and in the expanded Cl-region, suggesting microstructure effects are critical. Similarities with other halide superionic conductors are highlighted.

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Section: -mentioning

confidence: 88%

“…X-ray diffraction further indicates a phase-separation at the x = 3 composition. 12 Accordingly, we simulated Li diffusion within a NP supercell of Br 3 (structure in Fig. 1).…”

Section: -mentioning

confidence: 99%

Section: -mentioning

confidence: 99%

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Alloying effects on superionic conductivity in lithium indium halides for all-solid-state batteries

et al. 2018

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“…As for LiInBr 4 , this phase appears at 41 C on heating but is preserved down to À13 C on cooling [248]. The substitution of Cl for 50% Br shifts the phase transition point below room temperature [249].…”

Section: Structures With Isolated Monatomic Anionsmentioning

confidence: 89%

“…$10 À4a 0.016 Li 0. 18 [239] 0 3 7 · 10 À5 9 · 10 À3 Li 3.4 Si 0.4 P 0.6 S 4 [240] 0 3 6 · 10 À4 0.13 28 Li 3 N (with impurities) [2,8] 0 2 10 À6 -6 · 10 À4 24-54 Li 6 FeCl 8 [245,246] 0 3 0.011 Li 2 CdCl 4 [247] 0 3 0.08 49 (>270 C) LiInBr 4 supercooled [248] 0 3 10 À3 Li 3 InBr 6Àx Cl x (0 x 3) [248,249] [253] 0 ? 5 · 10 À7 0.01 56 a Extrapolated value.…”

Section: 52mentioning

confidence: 99%

Alkali Metal Cation and Proton Conductors: Relationships between Composition, Crystal Structure, and Properties

Avdeev¹,

Nalbandyan²,

Shukaev³

2009

Solid State Electrochemistry I

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The aim of this chapter is to provide an overview of materials where fast transport of alkali metal cations and protons is observed. A general discussion of factors affecting conductivity and techniques used to study ion migration paths is followed by a review of the large number of cation conductors. Materials with large alkali ions (Na-Cs) are often isostructural and therefore examined as a group. The lithium conductors with unique crystal structure types and proton conductors with unique conduction mechanisms are also discussed.

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Solid Halide Electrolytes with High Lithium‐Ion Conductivity for Application in 4 V Class Bulk‐Type All‐Solid‐State Batteries

et al. 2018

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New lithium halide solid-electrolyte materials, Li YCl and Li YBr , are found to exhibit high lithium-ion conductivity, high deformability, and high chemical and electrochemical stability, which are required properties for all-solid-state battery (ASSB) applications, particularly for large-scale deployment. The lithium-ion conductivities of cold-pressed powders surpass 1 mS cm at room temperature without additional intergrain or grain boundary resistances. Bulk-type ASSB cells employing these new halide solid electrolyte materials exhibit coulombic efficiencies as high as 94% with an active cathode material of LiCoO without any extra coating. These superior electrochemical characteristics, as well as their material stability, indicate that lithium halide salts are another promising candidate for ASSB solid electrolytes in addition to sulfides or oxides.

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Substitution effect of ionic conductivity in lithium ion conductor, LI3INBR6−xCLx

Cited by 45 publications

References 6 publications

Alloying effects on superionic conductivity in lithium indium halides for all-solid-state batteries

Alloying effects on superionic conductivity in lithium indium halides for all-solid-state batteries

Alkali Metal Cation and Proton Conductors: Relationships between Composition, Crystal Structure, and Properties

Solid Halide Electrolytes with High Lithium‐Ion Conductivity for Application in 4 V Class Bulk‐Type All‐Solid‐State Batteries

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