Correlation and the mechanism of lithium ion diffusion with the crystal structure of Li7La3Zr2O12 revealed by an internal friction technique

2014 ◽  
Vol 16 (15) ◽  
pp. 7006-7014 ◽  
Author(s):  
X. P. Wang ◽  
Y. X. Gao ◽  
Y. P. Xia ◽  
Z. Zhuang ◽  
T. Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Impedance Spectroscopy ◽  
Internal Friction ◽  
Transport Mechanism ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Ac Impedance Spectroscopy ◽  
Lithium Ions ◽  
Ion Conductor ◽  
Lithium Ion Diffusion

The correlation and transport mechanism of lithium ions with the crystal structure of a fast lithium ion conductor Li7La3Zr2O12 are mainly investigated by internal friction (IF) and AC impedance spectroscopy techniques.

scholarly journals NMR and Impedance Spectroscopy Studies on Lithium Ion Diffusion in Microcrystalline γ-LiAlO2

2015 ◽  
Vol 229 (9) ◽  
Author(s):  
Elena Witt ◽  
Suliman Nakhal ◽  
C. Vinod Chandran ◽  
Martin Lerch ◽  
Paul Heitjans
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Impedance Spectroscopy ◽  
Lithium Ion ◽  
Ion Dynamics ◽  
Ion Diffusion ◽  
Li Ion ◽  
Spectroscopy Studies ◽  
Lithium Ion Diffusion ◽  
Nuclear Magnetic

AbstractIn this work nuclear magnetic resonance (NMR) and impedance spectroscopy (IS) studies on Li ion dynamics in microcrystalline

scholarly journals Crystal structure, ionic conductivity and lithium-ion diffusion pathway in a La–Li–Co–O system

2020 ◽  
Vol 128 (8) ◽  
pp. 453-456
Author(s):  
Tsuyoshi TAKAMI ◽  
Yoshihisa ISHIKAWA ◽  
Masao YONEMURA ◽  
Toshiharu FUKUNAGA ◽  
Eiichiro MATSUBARA ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Ionic Conductivity ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Diffusion Pathway ◽  
Lithium Ion Diffusion

Internal friction study on the lithium ion diffusion of Li5La3M2O12 (M = Ta, Nb) ionic conductors

2011 ◽  
Vol 13 (9) ◽  
pp. 1760-1764 ◽  
Author(s):  
W.G. Wang ◽  
X.P. Wang ◽  
Y.X. Gao ◽  
G.L. Hao ◽  
W.Q. Ma ◽  
...  
Keyword(s):  
Internal Friction ◽  
Lithium Ion ◽  
Ionic Conductors ◽  
Ion Diffusion ◽  
Lithium Ion Diffusion ◽  
Friction Study

Impedance spectroscopy study of lithium ion diffusion in a new cathode material based on vanadium pentoxide

2010 ◽  
Vol 20 (1) ◽  
pp. 12-14 ◽  
Author(s):  
Dmitry A. Semenenko ◽  
Tatiana L. Kulova ◽  
Alexander M. Skundin ◽  
Daniil M. Itkis ◽  
Ekaterina A. Pomerantseva ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Cathode Material ◽  
Vanadium Pentoxide ◽  
Lithium Ion ◽  
Spectroscopy Study ◽  
Ion Diffusion ◽  
Impedance Spectroscopy Study ◽  
Lithium Ion Diffusion

Dielectric Relaxation Studies of the Fast Lithium-Ion Conductor La2/3-xLi3xTiO3 (x=0.06, 0.11)

2012 ◽  
Vol 457-458 ◽  
pp. 1019-1024
Author(s):  
Wei Guo Wang ◽  
Qian Feng Fang ◽  
Gang Ling Hao
Keyword(s):  
Dielectric Relaxation ◽  
Phonon Frequency ◽  
Lithium Ion ◽  
Relaxation Processes ◽  
Ion Diffusion ◽  
Lithium Ions ◽  
Debye Relaxation ◽  
Exponential Factor ◽  
Relaxation Parameters ◽  
Lithium Ion Diffusion

The diffusion processes of lithium ions in La2/3-xLi3xTiO3 (x=0.06, 0.11) compounds were investigated by dielectric relaxation method. Prominent relaxation dielectric loss peaks, peaks P1 and P2 in La0.56Li0.33TiO3 and peaks P3 and P4 in La0.61Li0.18 TiO3, were observed. From the shift of peak position with frequency, the activation energy of 0.36~0.42 eV and the pre-exponential factor of relaxation time in the order of 10-14 ~ 10-13 s were obtained if one assumes Debye relaxation processes. The activation energies of lithium ion diffusion in La2/3-xLi3xTiO3 compounds and the characteristic vibration frequency for the ionic hopping motion are higher than those measured by 7Li nuclear magnetic resonance (NMR) spectroscopy and that of the typical phonon frequency (about 1013Hz). These values of relaxation parameters strongly suggest the existence of interaction between the relaxation species (here lithium ions or vacancies). Basing on the coupling model, the decoupled relaxation parameters of the dielectric relaxation peaks is: P1 (0.14 eV, 2×10-13 s), P2 (0.25 eV, 1.8×10-13 s), P3 (0.17 eV, 4×10-13 s) and P4 (0.3 eV, 2.7×10-13 s). These decoupled parameters are very close to the NMR measurement results and the reciprocal of the typical phonon frequency. Judging from the relaxation parameter of the peaks and combining with the crystallographic characterization, it is suggested that the P1 (P3) and P2 (P4) peaks are associated with the lithium ion diffusion in the ab planes and between the adjacent ab planes, respectively.

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