Influence of B-site ion valence on ion conduction for perovskite-type Li ion conductor, (La2/3–1/3p Lip)(Mg1/2W1/2)O3 (p =0.05, 0.11 and 0.14)

2004 ◽  
Vol 835 ◽  
Author(s):  
Tetsuhiro Katsumata ◽  
Megumi Takahata ◽  
Nobuko Mochizuki ◽  
Yoshiyuki Inaguma
Keyword(s):  
Activation Energy ◽  
Coulomb Repulsion ◽  
Ion Conductivity ◽  
Ion Conduction ◽  
Ion Conductor ◽  
Li Ion ◽  
A Site ◽  
Perovskite Type

AbstractWe synthesized perovskite-type Li ion conductor, (La2/3–1/3p Lip)(Mg1/2W1/2)O3 (p =0.05, 0.11 and 0.14), and investigated the variation of the Li ion conductivity with p. Furthermore, the variation of the activation energy with the valence of B-site ion was elucidated from the site potential at A-site and a bottleneck position. As results, it is suggested that the Coulomb repulsion between B-site and Li ions at the bottleneck dominates the activation energy for (La2/3–1/3p Lip)(Mg1/2W1/2)O3.

Predominant Factors of Lithium Ion Conductivity in Perovskite-Type Oxides

1996 ◽  
Vol 453 ◽  
Author(s):  
Y. Inaguma ◽  
T. Katsumata ◽  
J. Yu ◽  
M. Itoh
Keyword(s):  
Activation Energy ◽  
Lithium Ion ◽  
Ion Conductivity ◽  
Ion Conduction ◽  
Lithium Ion Conductivity ◽  
A Site ◽  
Perovskite Type

AbstractThe relation between the structure and the lithium ion conductivity in perovskite-type oxides ABO3 was investigated from the viewpoint of the the arrangement of A-site ions. It was showed that the conductivity in La2/3-xLi3x□1/3–2xTiO3 is strongly influenced by not only the concentration but also the ordered arrangement of skeletal A-site ions. Further the activation energy for ion conduction was found to be dominated by the covalency of B-O bond in addition to the bottleneck size.

ChemInform Abstract: Crystal Structure of Garnet-Related Li-Ion Conductor Li7-3xGaxLa3Zr2O12: Fast Li-Ion Conduction Caused by a Different Cubic Modification?

ChemInform ◽  
2016 ◽  
Vol 47 (23) ◽  
Author(s):  
Reinhard Wagner ◽  
Guenther J. Redhammer ◽  
Daniel Rettenwander ◽  
Anatoliy Senyshyn ◽  
Walter Schmidt ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Ion Conduction ◽  
Ion Conductor ◽  
Li Ion

Improvement of Li-ion conductivity in A-site disordering lithium-lanthanum-titanate perovskite oxides by adding LiF in synthesis

2009 ◽  
Vol 189 (1) ◽  
pp. 536-538 ◽  
Author(s):  
Toyoki Okumura ◽  
Koji Yokoo ◽  
Tomokazu Fukutsuka ◽  
Yoshiharu Uchimoto ◽  
Morihiro Saito ◽  
...  
Keyword(s):  
Perovskite Oxides ◽  
Ion Conductivity ◽  
Lithium Lanthanum Titanate ◽  
Lanthanum Titanate ◽  
Li Ion ◽  
A Site

Relationship between Activation Energy and Bottleneck Size for Li+Ion Conduction in NASICON Materials of Composition LiMM‘(PO4)3; M, M‘ = Ge, Ti, Sn, Hf

1998 ◽  
Vol 102 (2) ◽  
pp. 372-375 ◽  
Author(s):  
Ana Martínez-Juárez ◽  
Carlos Pecharromán ◽  
Juan E. Iglesias ◽  
José M. Rojo
Keyword(s):  
Activation Energy ◽  
Ion Conduction ◽  
Li Ion

Enhancing Li-ion conduction in composite polymer electrolyte by Li0.33La0.56TiO3 nanotubes

2021 ◽  
Author(s):  
Lei Xu ◽  
Lifeng Zhang ◽  
Yubing Hu ◽  
Langli Luo
Keyword(s):  
Polymer Electrolyte ◽  
Polyvinylidene Fluoride ◽  
Ion Conductivity ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
Ion Conduction ◽  
Li Ion

Here, we report a polyvinylidene fluoride (PVDF) based composite polymer electrolyte (CPE) with a unique Li0.33La0.56TiO3 (LLTO) nanotubes filler, which shows a high Li-ion conductivity. Compared with LLTO nanoparticles and...

High Oxide Ion Conductivity of (Ba1-x-ySrxLay)InO2.5+y/2 Members Derived from the Ba2In2O5 System

2005 ◽  
Vol 242-244 ◽  
pp. 159-168 ◽  
Author(s):  
Katsuyoshi Kakinuma ◽  
Hiroshi Yamamura ◽  
Tooru Atake
Keyword(s):  
Ion Mobility ◽  
Ion Conductivity ◽  
Ion Conductor ◽  
Oxide Ion Conductor ◽  
Oxide Ion Conductivity ◽  
Maximum Value ◽  
Solid Solution System ◽  
Perovskite Type ◽  
Oxide Ion ◽  
Key Parameter

We have discovered a high oxide ion conductor within the perovskite-type (Ba1-x-ySrxLay)InO2.5+y/2 solid-solution system. The system was derived from brownmillerite-type Ba2In2O5, which possessed a ordered oxide ion vacancies. When we doped La3+ into the Ba site, the vacancy changed to a disordered state. The oxide ion conductivity increased with the amount of doped La3+, reaching a maximum value of 0.12 (S/cm) at 800 oC in (Ba0.3Sr0.2La0.5)InO2.75, a level exceeding that of yttria-stabilized zirconia. The oxide ion conductivity of this system was strongly dependent on the unit cell free volume, which appears to be the key parameter governing oxide ion mobility.

scholarly journals Fast Li-Ion Conduction in Spinel-Structured Solids

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2625
Author(s):  
Jan L. Allen ◽  
Bria A. Crear ◽  
Rishav Choudhury ◽  
Michael J. Wang ◽  
Dat T. Tran ◽  
...  
Keyword(s):  
Solid Solution ◽  
Single Phase ◽  
Electronic Conductivity ◽  
Phase Interface ◽  
Ion Conductivity ◽  
Ion Conduction ◽  
Solid Electrode ◽  
Electrochemically Active ◽  
Li Ion ◽  
Multi Phase

Spinel-structured solids were studied to understand if fast Li+ ion conduction can be achieved with Li occupying multiple crystallographic sites of the structure to form a “Li-stuffed” spinel, and if the concept is applicable to prepare a high mixed electronic-ionic conductive, electrochemically active solid solution of the Li+ stuffed spinel with spinel-structured Li-ion battery electrodes. This could enable a single-phase fully solid electrode eliminating multi-phase interface incompatibility and impedance commonly observed in multi-phase solid electrolyte–cathode composites. Materials of composition Li1.25M(III)0.25TiO4, M(III) = Cr or Al were prepared through solid-state methods. The room-temperature bulk Li+-ion conductivity is 1.63 × 10−4 S cm−1 for the composition Li1.25Cr0.25Ti1.5O4. Addition of Li3BO3 (LBO) increases ionic and electronic conductivity reaching a bulk Li+ ion conductivity averaging 6.8 × 10−4 S cm−1, a total Li-ion conductivity averaging 4.2 × 10−4 S cm−1, and electronic conductivity averaging 3.8 × 10−4 S cm−1 for the composition Li1.25Cr0.25Ti1.5O4 with 1 wt. % LBO. An electrochemically active solid solution of Li1.25Cr0.25Mn1.5O4 and LiNi0.5Mn1.5O4 was prepared. This work proves that Li-stuffed spinels can achieve fast Li-ion conduction and that the concept is potentially useful to enable a single-phase fully solid electrode without interphase impedance.

A high-conduction Ge substituted Li3AsS4 solid electrolyte with exceptional low activation energy

2014 ◽  
Vol 2 (27) ◽  
pp. 10396-10403 ◽  
Author(s):  
Gayatri Sahu ◽  
Ezhiylmurugan Rangasamy ◽  
Juchuan Li ◽  
Yan Chen ◽  
Ke An ◽  
...  
Keyword(s):  
Activation Energy ◽  
Solid Electrolyte ◽  
Ion Conductor ◽  
Li Ion

A Li-ion conductor with an ultralow activation energy.

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