A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 Electrodes
A safe and low-cost aqueous electrolyte, in which maximum amount of sodium trifluoroacetate (NaTFA) is dissolved (26 mol kg−1), showed high ionic conductivity of 23 mS cm−1 and provided wide electrochemical stability window of 3.1 V. These attractive features may originate from so-called “water-in-s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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The Electrochemical Society of Japan
2021-09-01
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| Series: | Electrochemistry |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/89/5/89_21-00056/_pdf/-char/en |
| _version_ | 1797966692566958080 |
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| author | Kosuke NAKAMOTO Ryo SAKAMOTO Yuki NISHIMURA Jingyu XIA Masato ITO Shigeto OKADA |
| author_facet | Kosuke NAKAMOTO Ryo SAKAMOTO Yuki NISHIMURA Jingyu XIA Masato ITO Shigeto OKADA |
| author_sort | Kosuke NAKAMOTO |
| collection | DOAJ |
| description | A safe and low-cost aqueous electrolyte, in which maximum amount of sodium trifluoroacetate (NaTFA) is dissolved (26 mol kg−1), showed high ionic conductivity of 23 mS cm−1 and provided wide electrochemical stability window of 3.1 V. These attractive features may originate from so-called “water-in-salt” effect of the highly concentrated electrolyte in addition to a robust fluoride layer formed on anode thereof. This novel electrolyte enabled reversible operation of NASICON-type Na2VTi(PO4)3 as symmetrical operation based on V3+/4+ at cathode and Ti3+/4+ and V2+/3+ at anode, respectively. |
| first_indexed | 2024-04-11T02:19:21Z |
| format | Article |
| id | doaj.art-63c265f085dd4f1588938bd5051381a7 |
| institution | Directory Open Access Journal |
| issn | 2186-2451 |
| language | English |
| last_indexed | 2024-04-11T02:19:21Z |
| publishDate | 2021-09-01 |
| publisher | The Electrochemical Society of Japan |
| record_format | Article |
| series | Electrochemistry |
| spelling | doaj.art-63c265f085dd4f1588938bd5051381a72023-01-03T00:24:10ZengThe Electrochemical Society of JapanElectrochemistry2186-24512021-09-0189541541910.5796/electrochemistry.21-00056electrochemistryA Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 ElectrodesKosuke NAKAMOTO0Ryo SAKAMOTO1Yuki NISHIMURA2Jingyu XIA3Masato ITO4Shigeto OKADA5Institute for Materials Chemistry and Engineering, Kyushu UniversityInstitute for Materials Chemistry and Engineering, Kyushu UniversityInterdisciplinary Graduate School of Engineering Sciences, Kyushu UniversityGraduate School of Mechanical Engineering, Pusan National UniversityInstitute for Materials Chemistry and Engineering, Kyushu UniversityInstitute for Materials Chemistry and Engineering, Kyushu UniversityA safe and low-cost aqueous electrolyte, in which maximum amount of sodium trifluoroacetate (NaTFA) is dissolved (26 mol kg−1), showed high ionic conductivity of 23 mS cm−1 and provided wide electrochemical stability window of 3.1 V. These attractive features may originate from so-called “water-in-salt” effect of the highly concentrated electrolyte in addition to a robust fluoride layer formed on anode thereof. This novel electrolyte enabled reversible operation of NASICON-type Na2VTi(PO4)3 as symmetrical operation based on V3+/4+ at cathode and Ti3+/4+ and V2+/3+ at anode, respectively.https://www.jstage.jst.go.jp/article/electrochemistry/89/5/89_21-00056/_pdf/-char/enaqueous sodium-ion batteryna2vti(po4)3sodium trifluoroacetateconcentrated aqueous electrolyte |
| spellingShingle | Kosuke NAKAMOTO Ryo SAKAMOTO Yuki NISHIMURA Jingyu XIA Masato ITO Shigeto OKADA A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 Electrodes Electrochemistry aqueous sodium-ion battery na2vti(po4)3 sodium trifluoroacetate concentrated aqueous electrolyte |
| title | A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 Electrodes |
| title_full | A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 Electrodes |
| title_fullStr | A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 Electrodes |
| title_full_unstemmed | A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 Electrodes |
| title_short | A Trifluoroacetate-based Concentrated Electrolyte for Symmetrical Aqueous Sodium-ion Battery with NASICON-type Na2VTi(PO4)3 Electrodes |
| title_sort | trifluoroacetate based concentrated electrolyte for symmetrical aqueous sodium ion battery with nasicon type na2vti po4 3 electrodes |
| topic | aqueous sodium-ion battery na2vti(po4)3 sodium trifluoroacetate concentrated aqueous electrolyte |
| url | https://www.jstage.jst.go.jp/article/electrochemistry/89/5/89_21-00056/_pdf/-char/en |
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