scholarly journals A New Lithium‐Ion Conductor LiTaSiO 5 : Theoretical Prediction, Materials Synthesis, and Ionic Conductivity

2019 ◽  
Vol 29 (37) ◽  
pp. 1904232 ◽  
Author(s):  
Qi Wang ◽  
Jian‐Fang Wu ◽  
Ziheng Lu ◽  
Francesco Ciucci ◽  
Wei Kong Pang ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Theoretical Prediction ◽  
Lithium Ion ◽  
Materials Synthesis ◽  
Ion Conductor

A comparative study of Li10.35Ge1.35P1.65S12 and Li10.5Ge1.5P1.5S12 superionic conductors

2020 ◽  
Vol 13 (06) ◽  
pp. 2050031
Author(s):  
Yue Jiang ◽  
Zhiwei Hu ◽  
Ming’en Ling ◽  
Xiaohong Zhu
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Ionic Conductivities ◽  
Lithium Ion ◽  
Lattice Parameter ◽  
Superionic Conductors ◽  
Chemical Compositions ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity ◽  
Ion Conductor

Since the lithium-ion conductor Li[Formula: see text]GeP2S[Formula: see text] (LGPS) with a super high room-temperature conductivity of 12[Formula: see text]mS/cm was first reported in 2011, sulfide-type solid electrolytes have been paid much attention. It was suggested by Kwon et al. [J. Mater. Chem. A 3, 438 (2015)] that some excess lithium ions in LGPS, namely, Li[Formula: see text]Ge[Formula: see text] P[Formula: see text]S[Formula: see text], could further improve their ionic conductivities, and the highest conductivity of 14.2[Formula: see text]mS/cm was obtained at [Formula: see text] though a larger lattice parameter that occurred at [Formula: see text]. In this study, we focus on these two different chemical compositions of LGPS with [Formula: see text] and [Formula: see text], respectively. Both samples were prepared using the same experimental process. Their lattice parameter, microstructure and room-temperature ionic conductivity were compared in detail. The results show that the main phase is the tetragonal LGPS phase but with a nearly identical amount of orthorhombic LGPS phase coexisting in both samples. Bigger lattice parameters, larger grain sizes and higher ionic conductivities are simultaneously achieved in Li[Formula: see text]Ge[Formula: see text]P[Formula: see text]S[Formula: see text] ([Formula: see text]), exhibiting an ultrahigh room-temperature ionic conductivity of 18.8[Formula: see text]mS/cm.

Sol-Gel Non-hydrolytic Synthesis of a Nanocomposite Electrolyte for Application in Lithium-ion Devices

2004 ◽  
Vol 822 ◽  
Author(s):  
Flávio L. Souza ◽  
Paulo R. Bueno ◽  
Ronaldo C. Faria ◽  
Elson Longo ◽  
Edson R. Leite
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Sol Gel ◽  
Specific Treatment ◽  
Lithium Ion ◽  
Polymeric Chain ◽  
Conductivity Measurements ◽  
Ion Conductor ◽  
Nanocomposite Electrolyte ◽  
Excellent Reproducibility

AbstractA new nanocomposite electrolyte was synthesized using a simple non-hydrolytic sol-gel route without specific treatment of the reagents. The nanocomposite ion conductor was prepared with citric acid, tetraethyl orthosilicate and ethylene glycol, forming polyester chains. The time-consuming drying step that is a necessary part of most chemical syntheses was not required in the preparation of the present nanocomposite electrolyte of the polyelectrolyte class, because only Li+ is mobile in the polymeric chain. The effects of the concentration of Li, SiO 2 and SnO2nanoparticles were investigated in terms of Li+ ionic conductivity. Conductivity measurements as a function of the metal oxide nanocrystal content in the nanocomposite revealed a significant increase in conductivity at approximately 5 and 10 wt % of nanoparticles. The new nanocomposite conductor proved to be fully amorphous at room temperature, with a vitreous transition temperature of approximately 228K (−45°C). The material is solid and transparent, displaying an ionic conductivity of 10−4to 10−5 (O.cm)−1at room temperature presenting excellent reproducibility of all these characteristics. Cyclic voltammetry measurements indicate that the hybrid electrolyte possesses outstanding electrochemical stability.

Synthesis, Structure and Ionic Conductivity of Garnet Like Lithium Ion Conductor Li6.25+xGa0.25La3-xSrxZr2O12

2018 ◽  
Vol 166 (3) ◽  
pp. A5168-A5173 ◽  
Author(s):  
Daisuke Mori ◽  
Kaoru Sugimoto ◽  
Yasuaki Matsuda ◽  
Kenta Ohmori ◽  
Tetsuhiro Katsumata ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion ◽  
Ion Conductor

Substitution effect of ionic conductivity in lithium ion conductor, LI3INBR6−xCLx

2008 ◽  
Vol 179 (21-26) ◽  
pp. 867-870 ◽  
Author(s):  
Y. Tomita ◽  
H. Matsushita ◽  
K. Kobayashi ◽  
Y. Maeda ◽  
K. Yamada
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion ◽  
Substitution Effect ◽  
Ion Conductor

Ultrafast solid-state lithium ion conductor through alloying induced lattice softening of Li6PS5Cl

2018 ◽  
Vol 6 (39) ◽  
pp. 19231-19240 ◽  
Author(s):  
Minjie Xuan ◽  
Weidong Xiao ◽  
Hongjie Xu ◽  
Yonglong Shen ◽  
Zhenzhen Li ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Lithium Ion ◽  
Combined Effect ◽  
Ion Conductor ◽  
Lattice Softening

A solid electrolyte with superb Li+ conductivity through tuning of the lattice chemistry in Li6PS5Cl. The ionic conductivity is enhanced through the combined effect of excess Li and substitution of S with Te.

scholarly journals Towards control over redox behaviour and ionic conductivity in LiTi2(PO4)3 fast lithium-ion conductor

2017 ◽  
Vol 140 ◽  
pp. 417-423 ◽  
Author(s):  
Wojciech Zając ◽  
Mateusz Tarach ◽  
Anita Trenczek-Zając
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion ◽  
Ion Conductor ◽  
Redox Behaviour

scholarly journals Decoupling of mechanical properties and ionic conductivity in supramolecular lithium ion conductors

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
David G. Mackanic ◽  
Xuzhou Yan ◽  
Qiuhong Zhang ◽  
Naoji Matsuhisa ◽  
Zhiao Yu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Lithium Ion ◽  
Wearable Electronics ◽  
Ion Conductor ◽  
Battery Materials ◽  
Ion Conducting ◽  
Lithium Ion Conductors ◽  
Stretchable Battery

AbstractThe emergence of wearable electronics puts batteries closer to the human skin, exacerbating the need for battery materials that are robust, highly ionically conductive, and stretchable. Herein, we introduce a supramolecular design as an effective strategy to overcome the canonical tradeoff between mechanical robustness and ionic conductivity in polymer electrolytes. The supramolecular lithium ion conductor utilizes orthogonally functional H-bonding domains and ion-conducting domains to create a polymer electrolyte with unprecedented toughness (29.3 MJ m−3) and high ionic conductivity (1.2 × 10−4 S cm−1 at 25 °C). Implementation of the supramolecular ion conductor as a binder material allows for the creation of stretchable lithium-ion battery electrodes with strain capability of over 900% via a conventional slurry process. The supramolecular nature of these battery components enables intimate bonding at the electrode-electrolyte interface. Combination of these stretchable components leads to a stretchable battery with a capacity of 1.1 mAh cm−2 that functions even when stretched to 70% strain. The method reported here of decoupling ionic conductivity from mechanical properties opens a promising route to create high-toughness ion transport materials for energy storage applications.

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