A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering
In a conversion-type electrode material of lithium-ion batteries, a phase separation phenomenon is induced by charge-discharge reaction. In this study, the spatial periodicity of phase-separated nanostructures induced in the discharged ferrous fluoride (FeF2) electrodes were investigated using the s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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The Electrochemical Society of Japan
2022-07-01
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| Series: | Electrochemistry |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/90/7/90_22-00040/_html/-char/en |
| _version_ | 1797963039534743552 |
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| author | Hironobu HORI Chikako ISHIKAWA Atsushi INOISHI Hikari SAKAEBE Shigeto OKADA |
| author_facet | Hironobu HORI Chikako ISHIKAWA Atsushi INOISHI Hikari SAKAEBE Shigeto OKADA |
| author_sort | Hironobu HORI |
| collection | DOAJ |
| description | In a conversion-type electrode material of lithium-ion batteries, a phase separation phenomenon is induced by charge-discharge reaction. In this study, the spatial periodicity of phase-separated nanostructures induced in the discharged ferrous fluoride (FeF2) electrodes were investigated using the small-angle X-ray scattering (SAXS) method. The SAXS results of discharged FeF2 resembled the scattering results of the bicontinuous structures via spinodal decomposition. Thus, the SAXS results showed that the discharged FeF2 electrodes were modulated nanostructures with a spatial periodicity. SAXS measurements also showed that the size of the discharged FeF2 nanostructures was dependent on the cycle number. These SAXS finding on the morphological evolution of the nanoscale structure of conversion electrodes should be useful to reveal the mechanism of conversion reactions. |
| first_indexed | 2024-04-11T01:23:10Z |
| format | Article |
| id | doaj.art-cf9f9e79c96f4227b3d3777b09a2397d |
| institution | Directory Open Access Journal |
| issn | 2186-2451 |
| language | English |
| last_indexed | 2024-04-11T01:23:10Z |
| publishDate | 2022-07-01 |
| publisher | The Electrochemical Society of Japan |
| record_format | Article |
| series | Electrochemistry |
| spelling | doaj.art-cf9f9e79c96f4227b3d3777b09a2397d2023-01-03T11:06:57ZengThe Electrochemical Society of JapanElectrochemistry2186-24512022-07-0190707700707700710.5796/electrochemistry.22-00040electrochemistryA Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray ScatteringHironobu HORI0Chikako ISHIKAWA1Atsushi INOISHI2Hikari SAKAEBE3Shigeto OKADA4Institute for Materials Chemistry and Engineering, Kyushu UniversityTransdisciplinary Research and Education Center for Green Technologies, Kyushu UniversityInstitute for Materials Chemistry and Engineering, Kyushu UniversityInstitute for Materials Chemistry and Engineering, Kyushu UniversityInstitute for Materials Chemistry and Engineering, Kyushu UniversityIn a conversion-type electrode material of lithium-ion batteries, a phase separation phenomenon is induced by charge-discharge reaction. In this study, the spatial periodicity of phase-separated nanostructures induced in the discharged ferrous fluoride (FeF2) electrodes were investigated using the small-angle X-ray scattering (SAXS) method. The SAXS results of discharged FeF2 resembled the scattering results of the bicontinuous structures via spinodal decomposition. Thus, the SAXS results showed that the discharged FeF2 electrodes were modulated nanostructures with a spatial periodicity. SAXS measurements also showed that the size of the discharged FeF2 nanostructures was dependent on the cycle number. These SAXS finding on the morphological evolution of the nanoscale structure of conversion electrodes should be useful to reveal the mechanism of conversion reactions.https://www.jstage.jst.go.jp/article/electrochemistry/90/7/90_22-00040/_html/-char/enconversion reactionphase separationspinodal decompositionsaxs |
| spellingShingle | Hironobu HORI Chikako ISHIKAWA Atsushi INOISHI Hikari SAKAEBE Shigeto OKADA A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering Electrochemistry conversion reaction phase separation spinodal decomposition saxs |
| title | A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering |
| title_full | A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering |
| title_fullStr | A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering |
| title_full_unstemmed | A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering |
| title_short | A Bicontinuous Nanostructure Induced in Lithiated Iron Fluoride Electrodes of Lithium-ion Batteries Investigated by Small-Angle X-ray Scattering |
| title_sort | bicontinuous nanostructure induced in lithiated iron fluoride electrodes of lithium ion batteries investigated by small angle x ray scattering |
| topic | conversion reaction phase separation spinodal decomposition saxs |
| url | https://www.jstage.jst.go.jp/article/electrochemistry/90/7/90_22-00040/_html/-char/en |
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