Szczegóły publikacji
Opis bibliograficzny
An alluaudite compounds $Na_{2}Fe_{2}(SO_{4})_{3}$ vs. $Na_{2.5}Fe_{1.75}(SO_{4})_{3}$ as earth abundant cathode materials for Na-ion batteries / Anna PLEWA, Andrzej KULKA, Dominika BASTER, Janina MOLENDA // Solid State Ionics ; ISSN 0167-2738. — 2019 — vol. 335, s. 15–22. — Bibliogr. s. 21–22, Abstr. — Publikacja dostępna online od: 2019-02-21
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 120645 |
|---|---|
| Data dodania do BaDAP | 2019-06-24 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ssi.2019.02.007 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Solid State Ionics |
Abstract
In this paper, two compounds Na2Fe2(SO4)3 and Na2.5Fe1.75(SO4)3 cathode materials were synthesised and studied in terms of their structural, transport and electrochemical properties in Na/Na+/Na2+2yFe2−y(SO4)3 (y = 0; 0.25) cells. The materials were fabricated using a low temperature solid state reaction. XRD measurements accompanied with Rietveld analysis confirmed the presence of a phase with C2/c symmetry for both obtained compositions. By changing the stoichiometry and synthesis conditions of Na2+2yFe2−y(SO4)3 the compound with a minimal amount of impurities can be obtained. Na2.5Fe1.75(SO4)3 material exhibits good transport properties with low charge transport activation energy. Electrochemical studies show improved performance of Na2.5Fe1.75(SO4)3 compared to Na2Fe2(SO4)3.
