Details
| Original language | English |
|---|---|
| Pages (from-to) | 14243-14247 |
| Number of pages | 5 |
| Journal | Journal of Physical Chemistry C |
| Volume | 116 |
| Issue number | 27 |
| Publication status | Published - 12 Jul 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 subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- General Energy
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Surfaces, Coatings and Films
Sustainable Development Goals
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In: Journal of Physical Chemistry C, Vol. 116, No. 27, 12.07.2012, p. 14243-14247.
Research output: Contribution to journal › Article › Research › 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 -