Szczegóły publikacji
Opis bibliograficzny
Lithium diffusion in $LiMn_{y}Fe_{1-y}PO_{4}$ cathode material / W. OJCZYK, J. MARZEC, K. ŚWIERCZEK, J. MOLENDA // Diffusion and Defect Data – Solid State Data . Part A, Defect and Diffusion Forum ; ISSN 1012-0386. — 2005 — vols. 237–240, s. 1299–1305. — Bibliogr. s. 1305, Abstr. — DIMAT 2004 : Diffusion in Materials : proceedings of the 6th international conference on Diffusion in Materials : Cracow, Poland, July 18–23, 2004
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 24692 |
|---|---|
| Data dodania do BaDAP | 2005-11-30 |
| Tekst źródłowy | URL |
| DOI | 10.4028/www.scientific.net/DDF.237-240.1299 |
| Rok publikacji | 2005 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Diffusion and Defect Data. Solid State Data, Part A, Defect and Diffusion Forum |
Abstract
The paper presents studies on structural and electrochemical properties of the LixMn0.55Fe0.45PO4 olivine upon lithium denitercalation. Contrary to the LiFePO4 or LiMnPO 4 materials, for which a two phase mechanism of electrochemical lithium extraction/insertion process is observed in the whole lithium concentration range, for the olivines with mixed composition LiMn yFe1-yPO4 a single phase deintercalation region appears, strictly related with the amount of Fe2+ in the cathode material. This phenomenon should be related to the coexistence of Fe 2+ (3d6) and Mn2+ (3d5) in LiMn yFe1-yPO4. Despite remarkably different lithium extraction mechanism in these samples, the determined diffusion coefficient of Li does not differ significantly from this of a LiFePO4 material.
