Sintering temperature dependency on sodium‐ion conductivity for Na 2 Zn 2 TeO 6 solid electrolyte

2021 ◽  
Author(s):  
Akihiro Itaya ◽  
Kazuki Yamamoto ◽  
Ryoji Inada
Keyword(s):  
Solid Electrolyte ◽  
Sintering Temperature ◽  
Ion Conductivity ◽  
Sodium Ion ◽  
Temperature Dependency

A Dramatic Reduction in the Sintering Temperature of the Refractory Sodium β’’-Alumina Solid Electrolyte via Cold Sintering

2021 ◽  
Author(s):  
Zane A. Grady ◽  
Arnaud Ndayishimiye ◽  
Clive A Randall
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Sintering Temperature ◽  
Sodium Ion ◽  
Dramatic Reduction ◽  
Sintering Process ◽  
Sodium Beta Alumina ◽  
Beta Alumina

The cold sintering process is successfully applied to one of the most refractory solid-state sodium-ion electrolytes, namely sodium beta alumina (SBA). By using a hydroxide-based transient solvent, SBA is densified...

scholarly journals Synthesis and Na+ Ion Conductivity of Stoichiometric Na3Zr2Si2PO12 by Liquid-Phase Sintering with NaPO3 Glass

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3790
Author(s):  
Yongzheng Ji ◽  
Tsuyoshi Honma ◽  
Takayuki Komatsu
Keyword(s):  
Solid State ◽  
Liquid Phase ◽  
Sintering Temperature ◽  
Liquid Phase Sintering ◽  
Ion Conductivity ◽  
X Ray Diffraction ◽  
Conventional Solid State Reaction ◽  
X Ray ◽  
Sintering Time ◽  
Lower Activation

Sodium super ionic conductor (NASICON)-type Na3Zr2Si2PO12 (NZSP) with the advantages of the high ionic conductivity, stability and safety is one of the most famous solid-state electrolytes. NZSP, however, requires the high sintering temperature about 1200 °C and long sintering time in the conventional solid-state reaction (SSR) method. In this study, the liquid-phase sintering (LPS) method was applied to synthesize NZSP with the use of NaPO3 glass with a low glass transition temperature of 292 °C. The formation of NZSP was confirmed by X-ray diffraction analyses in the samples obtained by the LPS method for the mixture of Na2ZrSi2O7, ZrO2, and NaPO3 glass. The sample sintered at 1000 °C for 10 h exhibited a higher Na+ ion conductivity of 1.81 mS/cm at 100 °C and a lower activation energy of 0.18 eV compared with the samples prepared by the SSR method. It is proposed that a new LPE method is effective for the synthesis of NZSP and the NaPO3 glass has a great contribution to the Na+ diffusion at the grain boundaries.

Lithium ion conductivity of oriented Li0.33La0.56TiO3 solid electrolyte films prepared by a sol–gel process

2016 ◽  
Vol 284 ◽  
pp. 1-6 ◽  
Author(s):  
Takashi Teranishi ◽  
Yuki Ishii ◽  
Hidetaka Hayashi ◽  
Akira Kishimoto
Keyword(s):  
Solid Electrolyte ◽  
Sol Gel ◽  
Lithium Ion ◽  
Ion Conductivity ◽  
Sol Gel Process ◽  
Lithium Ion Conductivity

Tuning Sodium Ion Conductivity in the Layered Honeycomb Oxide Na3–xSn2–xSbxNaO6

2015 ◽  
Vol 54 (16) ◽  
pp. 7985-7991 ◽  
Author(s):  
Rebecca W. Smaha ◽  
John H. Roudebush ◽  
Jake T. Herb ◽  
Elizabeth M. Seibel ◽  
Jason W. Krizan ◽  
...  
Keyword(s):  
Ion Conductivity ◽  
Sodium Ion

The role of Li site occupancy on the Li-ion conductivity of Ta-doped Li6.75La3Zr1.75Ta0.25O12 solid electrolyte materials with high Li concentrations

2021 ◽  
Vol 369 ◽  
pp. 115713
Author(s):  
Xingxing Zhang ◽  
Cheng Li ◽  
Weili Liu ◽  
Tae-Sik Oh ◽  
Jeffrey W. Fergus
Keyword(s):  
Solid Electrolyte ◽  
Site Occupancy ◽  
Ion Conductivity ◽  
Li Ion

Capacity losses due to solid electrolyte interphase formation and sodium diffusion in sodium-ion batteries

2021 ◽  
Author(s):  
Le Anh Ma ◽  
Alexander Buckel ◽  
Leif Nyholm ◽  
Reza Younesi
Keyword(s):  
Carbon Black ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Open Circuit ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Electrochemical Testing ◽  
Capacity Loss ◽  
Sei Layer ◽  
Sodium Diffusion

Abstract Knowledge about capacity losses due to the formation and dissolution of the solid electrolyte interphase (SEI) layer in sodium-ion batteries (SIBs) is still limited. One major challenge in SIBs is the fact that the SEI generally contains more soluble species than the corresponding SEI layers formed in Li-ion batteries. By cycling carbon black electrodes against Na-metal electrodes, to mimic the SEI formation on negative SIB electrodes, this study studies the associated capacity losses in different carbonate electrolyte systems. Using electrochemical testing and synchrotron-based X-ray photoelectron (XPS) experiments, the capacity losses due to changes in the SEI layer and diffusion of sodium in the carbon black electrodes during open circuit pauses of 50 h, 30 h, 15 h and 5 h are investigated in nine different electrolyte systems. The different contributions to the open circuit capacity loss were determined using a new approach involving different galvanostatic cycling protocols. It is shown that the capacity loss depends on the interplay between the electrolyte chemistry and the thickness and stability of the SEI layer. The results show, that the Na-diffusion into the bulk electrode gives rise to a larger capacity loss than the SEI dissolution. Hence, Na-trapping effect is one of the major contribution in the observed capacity losses. Furthermore, the SEI formed in NaPF6-EC:DEC was found to become slightly thicker during 50 h pause, due to self-diffused deintercalation of Na from the carbon black structure coupled by further electrolyte reduction. On the other hand, the SEI in NaTFSI with the same solvent goes into dissolution during pause. The highest SEI dissolution rate and capacity loss was observed in NaPF6-EC:DEC (0.57 μAh/hpause) and the lowest in NaTFSI-EC:DME (0.15 μAh/hpause).

scholarly journals Sodium Ion Conductivity in the System Na1.5(A2-y, Bｙ), Si0.5P2.5O12 ; A, B ; Zr, Ti, Hf

1991 ◽  
Vol 59 (3) ◽  
pp. 254-256
Author(s):  
Katsunori KOMORI ◽  
Yoshifumi YAMAMOTO ◽  
Yuria SAITO ◽  
Osamu NAKAMURA
Keyword(s):  
Ion Conductivity ◽  
Sodium Ion
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