Ultra‐fast Synthesis of I‐rich Lithium Argyrodite Glass‐Ceramic Electrolyte with High Ionic Conductivity

2021 ◽  
pp. 2107346
Author(s):  
Yu Liu ◽  
Hongling Peng ◽  
Han Su ◽  
Yu Zhong ◽  
Xiuli Wang ◽  
...  
2015 ◽  
Vol 3 (34) ◽  
pp. 17558-17562 ◽  
Author(s):  
Yiwen Ni ◽  
Ruilin Zheng ◽  
Xiaowen Tan ◽  
Weiyan Yue ◽  
Peng Lv ◽  
...  

A new fluorophosphate (Na2O + NaF)–TiO2–B2O3–P2O5–ZrF4 (NTBPZ) glass and glass–ceramic have Na-ion conductivities up to 7 × 10−9 S cm−1 and 3 × 10−5 S cm−1, respectively. Na-ion conductivity improves due to formation of conductive phase NaTi2(PO4)3.


2017 ◽  
Vol 5 (6) ◽  
pp. 2829-2834 ◽  
Author(s):  
Ruo-chen Xu ◽  
Xin-hui Xia ◽  
Xiu-li Wang ◽  
Yan Xia ◽  
Jiang-ping Tu

A novel high-quality MoS2-doped Li2S–P2S5glass-ceramic electrolyte (Li7P2.9S10.85Mo0.01) is successfully prepared by a facile combined method of high-energy ball milling plus annealing. The Li7P2.9S10.85Mo0.01electrolyte shows a high ionic conductivity and excellent electrochemical stability.


Ionics ◽  
2019 ◽  
Vol 25 (9) ◽  
pp. 4179-4188
Author(s):  
Shyam Sundar Gandi ◽  
Suman Gandi ◽  
Venkata Rao Madduluri ◽  
Naresh Kumar Katari ◽  
Dimple P. Dutta ◽  
...  

2019 ◽  
Author(s):  
Till Fuchs ◽  
Sean Culver ◽  
Paul Till ◽  
Wolfgang Zeier

<p>The sodium-ion conducting family of Na<sub>3</sub><i>Pn</i>S<sub>4</sub>, with <i>Pn</i> = P, Sb, have gained interest for the use in solid-state batteries due to their high ionic conductivity. However, significant improvements to the conductivity have been hampered by the lack of aliovalent dopants that can introduce vacancies into the structure. Inspired by the need for vacancy introduction into Na<sub>3</sub><i>Pn</i>S<sub>4</sub>, the solid solutions with WS<sub>4</sub><sup>2-</sup> introduction are explored. The influence of the substitution with WS<sub>4</sub><sup>2-</sup> for PS<sub>4</sub><sup>3-</sup> and SbS<sub>4</sub><sup>3-</sup>, respectively, is monitored using a combination of X-ray diffraction, Raman and impedance spectroscopy. With increasing vacancy concentration improvements resulting in a very high ionic conductivity of 13 ± 3 mS·cm<sup>-1</sup> for Na<sub>2.9</sub>P<sub>0.9</sub>W<sub>0.1</sub>S<sub>4</sub> and 41 ± 8 mS·cm<sup>-1</sup> for Na<sub>2.9</sub>Sb<sub>0.9</sub>W<sub>0.1</sub>S<sub>4</sub> can be observed. This work acts as a stepping-stone towards further engineering of ionic conductors using vacancy-injection via aliovalent substituents.</p>


2019 ◽  
Author(s):  
Till Fuchs ◽  
Sean Culver ◽  
Paul Till ◽  
Wolfgang Zeier

<p>The sodium-ion conducting family of Na<sub>3</sub><i>Pn</i>S<sub>4</sub>, with <i>Pn</i> = P, Sb, have gained interest for the use in solid-state batteries due to their high ionic conductivity. However, significant improvements to the conductivity have been hampered by the lack of aliovalent dopants that can introduce vacancies into the structure. Inspired by the need for vacancy introduction into Na<sub>3</sub><i>Pn</i>S<sub>4</sub>, the solid solutions with WS<sub>4</sub><sup>2-</sup> introduction are explored. The influence of the substitution with WS<sub>4</sub><sup>2-</sup> for PS<sub>4</sub><sup>3-</sup> and SbS<sub>4</sub><sup>3-</sup>, respectively, is monitored using a combination of X-ray diffraction, Raman and impedance spectroscopy. With increasing vacancy concentration improvements resulting in a very high ionic conductivity of 13 ± 3 mS·cm<sup>-1</sup> for Na<sub>2.9</sub>P<sub>0.9</sub>W<sub>0.1</sub>S<sub>4</sub> and 41 ± 8 mS·cm<sup>-1</sup> for Na<sub>2.9</sub>Sb<sub>0.9</sub>W<sub>0.1</sub>S<sub>4</sub> can be observed. This work acts as a stepping-stone towards further engineering of ionic conductors using vacancy-injection via aliovalent substituents.</p>


Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 874
Author(s):  
Soyoung Bae ◽  
Youngno Kim ◽  
Jeong Min Kim ◽  
Jung Hyun Kim

MXene, a 2D material, is used as a filler to manufacture polymer electrolytes with high ionic conductivity because of its unique sheet shape, large specific surface area and high aspect ratio. Because MXene has numerous -OH groups on its surface, it can cause dehydration and condensation reactions with poly(4-styrenesulfonic acid) (PSSA) and consequently create pathways for the conduction of cations. The movement of Grotthuss-type hydrogen ions along the cation-conduction pathway is promoted and a high ionic conductivity can be obtained. In addition, when electrolytes composed of a conventional acid or metal salt alone is applied to an electrochromic device (ECD), it does not bring out fast response time, high coloration efficiency and transmittance contrast simultaneously. Therefore, dual-cation electrolytes are designed for high-performance ECDs. Bis(trifluoromethylsulfonyl)amine lithium salt (LiTFSI) was used as a source of lithium ions and PSSA crosslinked with MXene was used as a source of protons. Dual-Cation electrolytes crosslinked with MXene was applied to an indium tin oxide-free, all-solution-processable ECD. The effect of applying the electrolyte to the device was verified in terms of response time, coloration efficiency and transmittance contrast. The ECD with a size of 5 × 5 cm2 showed a high transmittance contrast of 66.7%, fast response time (8 s/15 s) and high coloration efficiency of 340.6 cm2/C.


Nanoscale ◽  
2021 ◽  
Author(s):  
Feihu Tan ◽  
Hua An ◽  
Ning Li ◽  
Jun Du ◽  
Zhengchun Peng

As flexible all-solid-state batteries are highly safe and lightweight, they can be considered as candidates for wearable energy sources. However, their performance needs to be first improved, which can be...


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