Preparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary Battery
An LiCoO2 (LCO) phase is prepared on a perovskite type Li0.29La0.57TiO3 (LLTO) solid electrolyte by heating mixed lithium salts of LiNO3 and LiCl with Co(NO3)2·6H2O at 700 °C for 1 h. The resultant LCO is evaluated as a positive electrode in an all-solid-state Li secondary battery. Liquid-phase sint...
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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_21-00134/_html/-char/en |
| _version_ | 1797968127170969600 |
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| author | Naoto KATADA Tomoyuki OZAKI Yuuki AMANO Hijiri OIKAWA Yoshinori ARACHI Kazutaka MITSUISHI |
| author_facet | Naoto KATADA Tomoyuki OZAKI Yuuki AMANO Hijiri OIKAWA Yoshinori ARACHI Kazutaka MITSUISHI |
| author_sort | Naoto KATADA |
| collection | DOAJ |
| description | An LiCoO2 (LCO) phase is prepared on a perovskite type Li0.29La0.57TiO3 (LLTO) solid electrolyte by heating mixed lithium salts of LiNO3 and LiCl with Co(NO3)2·6H2O at 700 °C for 1 h. The resultant LCO is evaluated as a positive electrode in an all-solid-state Li secondary battery. Liquid-phase sintering using molten salts has been effective for the formation of a favorable interface between oxides in which lithium ions migrate electrochemically with reversibility. The fracture surface revealed by field emission scanning electron microscopy observation shows that the microscopic texture of the LCO consists of a dense 1 to 2 µm thick layer closely attached to the solid electrolyte over a wide area, as well as LCO spherical particles with sizes of several micrometers. The former growth has superior electrochemical activity compared to the latter. Additionally, a preferential growth plane of the LCO on LLTO is analyzed by transmission electron microscopy and the process of formation with heating is described. |
| first_indexed | 2024-04-11T02:42:01Z |
| format | Article |
| id | doaj.art-355e9f3472884f6ca6e3ee21d91b6623 |
| institution | Directory Open Access Journal |
| issn | 2186-2451 |
| language | English |
| last_indexed | 2024-04-11T02:42:01Z |
| publishDate | 2022-03-01 |
| publisher | The Electrochemical Society of Japan |
| record_format | Article |
| series | Electrochemistry |
| spelling | doaj.art-355e9f3472884f6ca6e3ee21d91b66232023-01-02T18:52:31ZengThe Electrochemical Society of JapanElectrochemistry2186-24512022-03-0190303700703700710.5796/electrochemistry.21-00134electrochemistryPreparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary BatteryNaoto KATADA0Tomoyuki OZAKI1Yuuki AMANO2Hijiri OIKAWA3Yoshinori ARACHI4Kazutaka MITSUISHI5Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai UniversityDepartment of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai UniversityDepartment of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai UniversityDepartment of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai UniversityDepartment of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai UniversityNational Institute for Materials ScienceAn LiCoO2 (LCO) phase is prepared on a perovskite type Li0.29La0.57TiO3 (LLTO) solid electrolyte by heating mixed lithium salts of LiNO3 and LiCl with Co(NO3)2·6H2O at 700 °C for 1 h. The resultant LCO is evaluated as a positive electrode in an all-solid-state Li secondary battery. Liquid-phase sintering using molten salts has been effective for the formation of a favorable interface between oxides in which lithium ions migrate electrochemically with reversibility. The fracture surface revealed by field emission scanning electron microscopy observation shows that the microscopic texture of the LCO consists of a dense 1 to 2 µm thick layer closely attached to the solid electrolyte over a wide area, as well as LCO spherical particles with sizes of several micrometers. The former growth has superior electrochemical activity compared to the latter. Additionally, a preferential growth plane of the LCO on LLTO is analyzed by transmission electron microscopy and the process of formation with heating is described.https://www.jstage.jst.go.jp/article/electrochemistry/90/3/90_21-00134/_html/-char/enall-solid-state li secondary batterylicoo2la2/3−xli3xtio3molten salt |
| spellingShingle | Naoto KATADA Tomoyuki OZAKI Yuuki AMANO Hijiri OIKAWA Yoshinori ARACHI Kazutaka MITSUISHI Preparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary Battery Electrochemistry all-solid-state li secondary battery licoo2 la2/3−xli3xtio3 molten salt |
| title | Preparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary Battery |
| title_full | Preparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary Battery |
| title_fullStr | Preparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary Battery |
| title_full_unstemmed | Preparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary Battery |
| title_short | Preparation of LiCoO2 by Molten Salts on Li0.29La0.57TiO3 Solid Electrolyte and Electrochemical Performances of the All-solid-state Li Secondary Battery |
| title_sort | preparation of licoo2 by molten salts on li0 29la0 57tio3 solid electrolyte and electrochemical performances of the all solid state li secondary battery |
| topic | all-solid-state li secondary battery licoo2 la2/3−xli3xtio3 molten salt |
| url | https://www.jstage.jst.go.jp/article/electrochemistry/90/3/90_21-00134/_html/-char/en |
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