Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte
NASICON-structured Na3Zr2(SiO4)2PO4 (NZSP) is regarded as one of the most promising solid-state electrolytes (SSEs) for all-solid-state Na-ion batteries mainly due to its high thermal stability and wide electrochemical window. However, the existing NZSP tends to exhibit lower ionic conductivity at r...
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Elsevier Ltd
2025
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| author | Chong M.K. Zainuddin Z. Omar F.S. Jumali M.H.H. Ansari M.N.M. |
| author2 | 57656923500 |
| author_facet | 57656923500 Chong M.K. Zainuddin Z. Omar F.S. Jumali M.H.H. Ansari M.N.M. |
| author_sort | Chong M.K. |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | NASICON-structured Na3Zr2(SiO4)2PO4 (NZSP) is regarded as one of the most promising solid-state electrolytes (SSEs) for all-solid-state Na-ion batteries mainly due to its high thermal stability and wide electrochemical window. However, the existing NZSP tends to exhibit lower ionic conductivity at room temperature. Thus, in order to solve this issue, NaH2PO4 was chosen as a novel phosphate source for the synthesis of NZSP via solid-state reaction method. On top of that, excess sodium (Na) and phosphorus (P) were also added into parent NZSP SSE with different weight percentage ratios to investigate their effects on Na+ ion activation energy. Structural study reveals NZSP with either excess Na or P have the same crystal structure morphology but are dissimilar in terms of the presence of impurities and grain size. NZSP with the excess of Na shows the highest ionic conductivity (1.05 ? 10?3 S cm?1) and electrode polarization contributed by the increasing of Na+ carriers and the excess Na+ ion vacancies. These results authenticate that the excess of Na can be an effective way to improve the performance of NZSP SSE for energy storage application. ? 2024 Elsevier Ltd |
| format | Article |
| id | my.uniten.dspace-36518 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | my.uniten.dspace-365182025-03-03T15:42:50Z Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte Chong M.K. Zainuddin Z. Omar F.S. Jumali M.H.H. Ansari M.N.M. 57656923500 57655960000 56020982300 6507916538 55489853600 Activation energy Crystal impurities Crystal structure Ionic conduction in solids Ionic conductivity Ions Phosphorus Silicon Solid electrolytes Solid state reactions Solid-State Batteries All-solid state Electrochemical window Excess na and P High thermal stability Na+ ions Na-ion batteries Nasicon Solid state reaction method Solid-state electrolyte Weight percentages Sodium compounds NASICON-structured Na3Zr2(SiO4)2PO4 (NZSP) is regarded as one of the most promising solid-state electrolytes (SSEs) for all-solid-state Na-ion batteries mainly due to its high thermal stability and wide electrochemical window. However, the existing NZSP tends to exhibit lower ionic conductivity at room temperature. Thus, in order to solve this issue, NaH2PO4 was chosen as a novel phosphate source for the synthesis of NZSP via solid-state reaction method. On top of that, excess sodium (Na) and phosphorus (P) were also added into parent NZSP SSE with different weight percentage ratios to investigate their effects on Na+ ion activation energy. Structural study reveals NZSP with either excess Na or P have the same crystal structure morphology but are dissimilar in terms of the presence of impurities and grain size. NZSP with the excess of Na shows the highest ionic conductivity (1.05 ? 10?3 S cm?1) and electrode polarization contributed by the increasing of Na+ carriers and the excess Na+ ion vacancies. These results authenticate that the excess of Na can be an effective way to improve the performance of NZSP SSE for energy storage application. ? 2024 Elsevier Ltd Final 2025-03-03T07:42:50Z 2025-03-03T07:42:50Z 2024 Article 10.1016/j.est.2024.111873 2-s2.0-85192187518 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85192187518&doi=10.1016%2fj.est.2024.111873&partnerID=40&md5=7660619d8d0cd5ecf0c3811593d19a63 https://irepository.uniten.edu.my/handle/123456789/36518 90 111873 Elsevier Ltd Scopus |
| spellingShingle | Activation energy Crystal impurities Crystal structure Ionic conduction in solids Ionic conductivity Ions Phosphorus Silicon Solid electrolytes Solid state reactions Solid-State Batteries All-solid state Electrochemical window Excess na and P High thermal stability Na+ ions Na-ion batteries Nasicon Solid state reaction method Solid-state electrolyte Weight percentages Sodium compounds Chong M.K. Zainuddin Z. Omar F.S. Jumali M.H.H. Ansari M.N.M. Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte |
| title | Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte |
| title_full | Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte |
| title_fullStr | Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte |
| title_full_unstemmed | Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte |
| title_short | Influence of excess sodium and phosphorus on the ionic conductivity of NASICON-structured Na3Zr2(SiO4)2PO4 ceramic solid electrolyte |
| title_sort | influence of excess sodium and phosphorus on the ionic conductivity of nasicon-structured na3zr2(sio4)2po4 ceramic solid electrolyte |
| topic | Activation energy Crystal impurities Crystal structure Ionic conduction in solids Ionic conductivity Ions Phosphorus Silicon Solid electrolytes Solid state reactions Solid-State Batteries All-solid state Electrochemical window Excess na and P High thermal stability Na+ ions Na-ion batteries Nasicon Solid state reaction method Solid-state electrolyte Weight percentages Sodium compounds |
| url_provider | http://dspace.uniten.edu.my/ |