Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 14243-14247 |
| Seitenumfang | 5 |
| Fachzeitschrift | Journal of Physical Chemistry C |
| Jahrgang | 116 |
| Ausgabenummer | 27 |
| Publikationsstatus | Veröffentlicht - 12 Juli 2012 |
Abstract
Dynamics of lithium ions in solid materials is a key parameter for applications such as electrode materials for lithium ion batteries. The Li diffusion in single crystalline γ-LiAlO 2 was studied with temperature-dependent 7Li NMR spectroscopy and conductivity measurements. The NMR measurements include a detailed study of the temperature dependence of static spectra and spin-lattice relaxation rate measurements. A combination of these methods allowed us to study diffusion coefficients over a range of more than seven decades. The range covered was 10 -20 to 10 -13 m 2 s -1 corresponding to jump rates between 10 0 and 10 7 s -1. An activation energy of about 1 eV was found. The hopping between crystallographically equivalent Li sites was explicitly verified by coalescence of quadrupole satellites in the NMR spectra.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Energie (insg.)
- Allgemeine Energie
- Chemie (insg.)
- Physikalische und Theoretische Chemie
- Werkstoffwissenschaften (insg.)
- Oberflächen, Beschichtungen und Folien
Ziele für nachhaltige Entwicklung
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Journal of Physical Chemistry C, Jahrgang 116, Nr. 27, 12.07.2012, S. 14243-14247.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Li ion dynamics in a LiAlO 2 single crystal studied by 7Li NMR spectroscopy and conductivity measurements
AU - Indris, Sylvio
AU - Heitjans, Paul
AU - Uecker, Reinhard
AU - Roling, Bernhard
PY - 2012/7/12
Y1 - 2012/7/12
N2 - Dynamics of lithium ions in solid materials is a key parameter for applications such as electrode materials for lithium ion batteries. The Li diffusion in single crystalline γ-LiAlO 2 was studied with temperature-dependent 7Li NMR spectroscopy and conductivity measurements. The NMR measurements include a detailed study of the temperature dependence of static spectra and spin-lattice relaxation rate measurements. A combination of these methods allowed us to study diffusion coefficients over a range of more than seven decades. The range covered was 10 -20 to 10 -13 m 2 s -1 corresponding to jump rates between 10 0 and 10 7 s -1. An activation energy of about 1 eV was found. The hopping between crystallographically equivalent Li sites was explicitly verified by coalescence of quadrupole satellites in the NMR spectra.
AB - Dynamics of lithium ions in solid materials is a key parameter for applications such as electrode materials for lithium ion batteries. The Li diffusion in single crystalline γ-LiAlO 2 was studied with temperature-dependent 7Li NMR spectroscopy and conductivity measurements. The NMR measurements include a detailed study of the temperature dependence of static spectra and spin-lattice relaxation rate measurements. A combination of these methods allowed us to study diffusion coefficients over a range of more than seven decades. The range covered was 10 -20 to 10 -13 m 2 s -1 corresponding to jump rates between 10 0 and 10 7 s -1. An activation energy of about 1 eV was found. The hopping between crystallographically equivalent Li sites was explicitly verified by coalescence of quadrupole satellites in the NMR spectra.
UR - http://www.scopus.com/inward/record.url?scp=84863821571&partnerID=8YFLogxK
U2 - 10.1021/jp3042928
DO - 10.1021/jp3042928
M3 - Article
AN - SCOPUS:84863821571
VL - 116
SP - 14243
EP - 14247
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 27
ER -