Szczegóły publikacji
Opis bibliograficzny
Structural and transport properties of $Li_{1} + _{x}V_{1} - _{x}O_{2}$ anode materials for $Li-ion$ batteries / Bartłomiej GĘDZIOROWSKI, Łukasz KONDRACKI, Konrad ŚWIERCZEK, Janina MOLENDA // Solid State Ionics ; ISSN 0167-2738. — 2014 — vol. 262 spec. iss., s. 124–127. — Bibliogr. s. 127, Abstr. — Proceedings of the 19th international conference on Solid state ionics
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 82222 |
|---|---|
| Data dodania do BaDAP | 2014-07-01 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ssi.2013.12.001 |
| Rok publikacji | 2014 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Solid State Ionics |
Abstract
Recently, layered Li1 + xV1 - xO2 with x >= 0 has attracted significant attention as an anode material for Li-ion batteries. Its high volumetric and gravimetric capacities (1360 mAh . cm(-3) and 300 mAh . g(-1) respectively) make it particularly interesting. During lithium intercalation Li1 + xV1 - xO2 with x > 0 exhibits wide potential plateau below 0.1 V vs. Li/Li+, while for stoichiometric LiVO2 lithium uptake hardly occurs. In this work evaluation of crystal structure, transport and electrochemical properties is given for Li1 + xV1 - xO2 materials with x = 0, 0.03 and 0.07. Li1 + xV1 - xO2 showed activated character of conductivity with activation energy about 0.2-0.3 eV. Thermoelectric power values exceeding 80 mu V.K-1 point to electron holes as the main charge carriers. Thermogravimetric measurements carried out in air indicated only minor variations of mass of the materials up to 215 degrees C, suggesting high stability along with low level of oxygen nonstoichiometiy. (C) 2013 Elsevier B.V. All rights reserved.
