Theoretical prediction of a highly conducting solid electrolyte for sodium batteries: Na10GeP2S12

2015 ◽  
Vol 3 (24) ◽  
pp. 12992-12999 ◽  
Author(s):  
Vinay S. Kandagal ◽  
Mridula Dixit Bharadwaj ◽  
Umesh V. Waghmare

The theoretically predicted compound Na10GeP2S12 exhibits Na-ionic conductivity of the same order of magnitude as that of other state-of-the-art solid electrolytes used in practical sodium batteries such as high-temperature sodium–sulfur batteries.

Nanoscale ◽  
2021 ◽  
Author(s):  
Han Wang ◽  
Genfu Zhao ◽  
Shimin Wang ◽  
Dangling Liu ◽  
Zhi-Yuan Mei ◽  
...  

NASICON-type Na3Zr2Si2PO12 (NZSP) is supposed to be one of the most potential solid electrolytes with the characteristics of high ionic conductivity and safety for solid-state sodium batteries. Many methods have...


1990 ◽  
Vol 210 ◽  
Author(s):  
I. Riess ◽  
R. Safadi

AbstractWe describe a method for a simultaneous measurement of the total and electronic conductivities of solid electrolytes (SE). The total conductivity is determined by a four probe method and the electronic (electron/hole) conductivity is determined simultaneously by a two probe method, for samples having the van—der—Pauw configuration.


1992 ◽  
Vol 293 ◽  
Author(s):  
Martha Greenblatt ◽  
Shouhua Feng

AbstractThe properties of various proton conducting solid electrolytes were investigated by electrochemical galvanic cell and ac impedance type measurements for applications as high temperature (T>200°C) humidity sensors. The basic characteristics of proton conductors required for humidity sensing are reviewed. Results of ionic conductivity and EMF measurements and their implications for the mechanism of ion transport are discussed for two prototype ceramic humidity sensors: β-Ca(PO3)2 and a NASICON-type ceramic composite, HZr2P3O12/ZrP2O7.


2018 ◽  
Vol 210 ◽  
pp. 55-67
Author(s):  
Joseph Martinez ◽  
David Ashby ◽  
Cheng Zhu ◽  
Bruce Dunn ◽  
Lane A. Baker ◽  
...  

The ionic conductivity of silica ionogel based solid electrolyte on meso and nanoscales is measured.


2018 ◽  
Vol 11 (02) ◽  
pp. 1850029 ◽  
Author(s):  
Shiying Qin ◽  
Xiaohong Zhu ◽  
Yue Jiang ◽  
Ming’en Ling ◽  
Zhiwei Hu ◽  
...  

A large number of pores and a low relative density that are frequently observed in solid electrolytes reduce severely their ionic conductivity and thus limit their applicability. Here, we report on the use of hot isostatic pressing (HIP) for ameliorating the garnet-type lithium-ion conducting solid electrolyte of Ga2O3-doped Li7La3Zr2O[Formula: see text] (Ga-LLZO) with nominal composition of Li[Formula: see text]Ga[Formula: see text]La3Zr2O[Formula: see text]. The Ga-LLZO pellets were conventionally sintered at 1075[Formula: see text]C for 12[Formula: see text]h, and then were followed by HIP treatment at 120[Formula: see text]MPa and 1160[Formula: see text]C under an Ar atmosphere. It is found that the HIP-treated Ga-LLZO shows an extremely dense microstructure and a significantly enhanced ionic conductivity. Coherent with the increase in relative density from 90.5% (untreated) to 97.5% (HIP-treated), the ionic conductivity of the HIP-treated Ga-LLZO reaches as high as [Formula: see text][Formula: see text]S/cm at room temperature (25[Formula: see text]C), being two times higher than that of [Formula: see text][Formula: see text]S/cm for the untreated one.


2021 ◽  
pp. 2140002
Author(s):  
Mingxia Fan ◽  
Xiangyu Deng ◽  
Anqiao Zheng ◽  
Songdong Yuan

NASICON-type Li[Formula: see text]Al[Formula: see text]Ti[Formula: see text](PO[Formula: see text] (LATP) solid electrolytes have been widely studied because of its stability in the air, low material price and high ionic conductivity. Gd-doped Li[Formula: see text]Al[Formula: see text]Gd[Formula: see text]Ti[Formula: see text](PO[Formula: see text] ([Formula: see text]= 0, 0.025, 0.05, 0.075 and 0.1) with high ionic conductivity was successfully synthesized by solvothermal method for the first time in this work. The effect of Gd doping content on the structure and electrochemical performance of solid electrolytes was systematically studied. The optimal doping content of Gd is [Formula: see text]= 0.075. With the Gd doping content of 0.075, the solid electrolyte has the highest ionic conductivity of 4.23 × 10[Formula: see text] S cm[Formula: see text] at room temperature, the lowest activation energy of 0.247 eV and the highest relative density of 94.89%. This is because the fact that when [Formula: see text]= 0.075, it is the maximum content of Gd[Formula: see text] to replace Al[Formula: see text] and can completely enter the lattice of LATP, and does not emerge too much non-lithium ion conductive GdPO4 phase.


2020 ◽  
Vol 8 (25) ◽  
pp. 12594-12602
Author(s):  
Shengnan He ◽  
Youlong Xu ◽  
Yanjun Chen ◽  
Xiaoning Ma

F−-assisted Na3Zr2Si2PO12 (NZSP) solid electrolyte with high ionic conductivity is promising as a solid electrolyte for solid-state sodium batteries.


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