Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte
All-solid-state lithium-ion batteries that use sulfide solid electrolytes have attracted much attention due to their high safety and wide electrochemical window. In this study, highly oriented pyrolytic graphite (HOPG) and 75Li2S-25P2S5 (mol%) glass were used as a model graphite negative electrode a...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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The Electrochemical Society of Japan
2022-03-01
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| Series: | Electrochemistry |
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| Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/90/3/90_21-00127/_html/-char/en |
| _version_ | 1797968162430386176 |
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| author | Danni YU Meiqi HUANG Yuto MIYAHARA Kohei MIYAZAKI Akitoshi HAYASHI Masahiro TATSUMISAGO Takeshi ABE Tomokazu FUKUTSUKA |
| author_facet | Danni YU Meiqi HUANG Yuto MIYAHARA Kohei MIYAZAKI Akitoshi HAYASHI Masahiro TATSUMISAGO Takeshi ABE Tomokazu FUKUTSUKA |
| author_sort | Danni YU |
| collection | DOAJ |
| description | All-solid-state lithium-ion batteries that use sulfide solid electrolytes have attracted much attention due to their high safety and wide electrochemical window. In this study, highly oriented pyrolytic graphite (HOPG) and 75Li2S-25P2S5 (mol%) glass were used as a model graphite negative electrode and a sulfide solid electrolyte, respectively. Interfacial lithium-ion transfer between 75Li2S-25P2S5 glass and the HOPG electrode was studied by AC impedance spectroscopy measurements. The activation energy of the interfacial lithium-ion transfer was estimated to be around 37 kJ mol−1, which was much smaller than that at the interface between organic liquid electrolytes and HOPG electrode, indicating that the lithium-ion transfer at the interface between 75Li2S-25P2S5 glass and HOPG electrode proceeded quite rapidly. Furthermore, surface deposition of TiO2 and surface oxidation on HOPG electrodes were performed using the atomic layer deposition (ALD) method. Interfacial lithium-ion transfer between 75Li2S-25P2S5 glass and ALD-modified-HOPG electrodes was also investigated. The activation energies of the interfacial lithium-ion transfer were slightly higher than that of HOPG, but the resistance of the charge-transfer process was lower, indicating that the affinity of the HOPG electrode for the glass electrolyte was improved by surface modification. |
| first_indexed | 2024-04-11T02:42:35Z |
| format | Article |
| id | doaj.art-c06ef64971494c7b9033f3d8eab6181c |
| institution | Directory Open Access Journal |
| issn | 2186-2451 |
| language | English |
| last_indexed | 2024-04-11T02:42:35Z |
| publishDate | 2022-03-01 |
| publisher | The Electrochemical Society of Japan |
| record_format | Article |
| series | Electrochemistry |
| spelling | doaj.art-c06ef64971494c7b9033f3d8eab6181c2023-01-02T18:52:31ZengThe Electrochemical Society of JapanElectrochemistry2186-24512022-03-0190303700303700310.5796/electrochemistry.21-00127electrochemistryKinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid ElectrolyteDanni YU0Meiqi HUANG1Yuto MIYAHARA2Kohei MIYAZAKI3Akitoshi HAYASHI4Masahiro TATSUMISAGO5Takeshi ABE6Tomokazu FUKUTSUKA7Graduate School of Engineering, Kyoto UniversityGraduate School of Engineering, Kyoto UniversityGraduate School of Engineering, Kyoto UniversityGraduate School of Engineering, Kyoto UniversityGraduate School of Engineering, Osaka Prefecture UniversityGraduate School of Engineering, Osaka Prefecture UniversityGraduate School of Engineering, Kyoto UniversityGraduate School of Engineering, Nagoya UniversityAll-solid-state lithium-ion batteries that use sulfide solid electrolytes have attracted much attention due to their high safety and wide electrochemical window. In this study, highly oriented pyrolytic graphite (HOPG) and 75Li2S-25P2S5 (mol%) glass were used as a model graphite negative electrode and a sulfide solid electrolyte, respectively. Interfacial lithium-ion transfer between 75Li2S-25P2S5 glass and the HOPG electrode was studied by AC impedance spectroscopy measurements. The activation energy of the interfacial lithium-ion transfer was estimated to be around 37 kJ mol−1, which was much smaller than that at the interface between organic liquid electrolytes and HOPG electrode, indicating that the lithium-ion transfer at the interface between 75Li2S-25P2S5 glass and HOPG electrode proceeded quite rapidly. Furthermore, surface deposition of TiO2 and surface oxidation on HOPG electrodes were performed using the atomic layer deposition (ALD) method. Interfacial lithium-ion transfer between 75Li2S-25P2S5 glass and ALD-modified-HOPG electrodes was also investigated. The activation energies of the interfacial lithium-ion transfer were slightly higher than that of HOPG, but the resistance of the charge-transfer process was lower, indicating that the affinity of the HOPG electrode for the glass electrolyte was improved by surface modification.https://www.jstage.jst.go.jp/article/electrochemistry/90/3/90_21-00127/_html/-char/enall-solid-state lithium secondary batteriesinterfacial lithium-ion transfergraphite negative electrodesulfide-based solid electrolyte |
| spellingShingle | Danni YU Meiqi HUANG Yuto MIYAHARA Kohei MIYAZAKI Akitoshi HAYASHI Masahiro TATSUMISAGO Takeshi ABE Tomokazu FUKUTSUKA Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte Electrochemistry all-solid-state lithium secondary batteries interfacial lithium-ion transfer graphite negative electrode sulfide-based solid electrolyte |
| title | Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte |
| title_full | Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte |
| title_fullStr | Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte |
| title_full_unstemmed | Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte |
| title_short | Kinetics of Interfacial Lithium-ion Transfer between a Graphite Negative Electrode and a Li2S-P2S5 Glassy Solid Electrolyte |
| title_sort | kinetics of interfacial lithium ion transfer between a graphite negative electrode and a li2s p2s5 glassy solid electrolyte |
| topic | all-solid-state lithium secondary batteries interfacial lithium-ion transfer graphite negative electrode sulfide-based solid electrolyte |
| url | https://www.jstage.jst.go.jp/article/electrochemistry/90/3/90_21-00127/_html/-char/en |
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