Understanding the Ionic Diffusivity in the (Meta)Stable (Un)doped Solid-State Electrolyte from First-Principles: A Case Study of LISICON

2020 ◽  
Vol 124 (32) ◽  
pp. 17485-17493
Author(s):  
Deepika Gill ◽  
Manish Kumar ◽  
Pooja Basera ◽  
Saswata Bhattacharya
Author(s):  
Günther J. Redhammer ◽  
Gerold Tippelt ◽  
Daniel Rettenwander

Single crystals of an Li-stuffed, Al- and Ga-stabilized garnet-type solid-state electrolyte material, Li7La3Zr2O12 (LLZO), have been analysed using single-crystal X-ray diffraction to determine the pristine structural state immediately after synthesis via ceramic sintering techniques. Hydrothermal treatment at 150 °C for 28 d induces a phase transition in the Al-stabilized compound from the commonly observed cubic Ia\overline{3}d structure to the acentric I\overline{4}3d subtype. LiI ions at the interstitial octahedrally (4 + 2-fold) coordinated 48e site are most easily extracted and AlIII ions order onto the tetrahedral 12a site. Deep hydration induces a distinct depletion of LiI at this site, while the second tetrahedral site, 12b, suffers only minor LiI loss. Charge balance is maintained by the incorporation of HI, which is bonded to an O atom. Hydration of Ga-stabilized LLZO induces similar effects, with complete depletion of LiI at the 48e site. The LiI/HI exchange not only leads to a distinct increase in the unit-cell size, but also alters some bonding topology, which is discussed here.


Author(s):  
Hoje Chun ◽  
Kyungju Nam ◽  
Sung Jun Hong ◽  
Joonhee Kang ◽  
Byungchan Han

A solid-state electrolyte (SSE) is a key component in the performance control of all-solid-state Li-ion batteries. The development of the promising materials has been, however, come to a standstill due...


Author(s):  
A. Akrouchi ◽  
H. Benzidi ◽  
A. Al-Shami ◽  
A. El kenz ◽  
A. Benyoussef ◽  
...  

The closo-dodecaborates M2B12H12 (M = Li, Na, K) are studied using first-principles DFT calculations, where this emerging category of BnHn materials is considered as a new class of candidate electrolytes for solid-state batteries.


2020 ◽  
Vol 55 ◽  
pp. 101344 ◽  
Author(s):  
Gerardo E. Camí ◽  
Elena V. Brusau ◽  
Griselda E. Narda ◽  
Rubén M. Maggio
Keyword(s):  

Nano Energy ◽  
2021 ◽  
pp. 105972
Author(s):  
Zizheng Tong ◽  
Shu-Bo Wang ◽  
Mu-Huai Fang ◽  
Yen-Ting Lin ◽  
Kun Ta Tsai ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1301
Author(s):  
Giacomo Picci ◽  
Jessica Milia ◽  
Maria Carla Aragoni ◽  
Massimiliano Arca ◽  
Simon J. Coles ◽  
...  

The new symmetric acyclic N,N’-bis(1-pyrenyl) squaramide (H2L) functionalized with the pyrene moiety as a fluorogenic fragment has been designed and its ability to selectively detect specific anions and metals investigated. H2L selectively binds Cl− both in solution (DMSO 0.5% H2O and MeCN) and in the solid state, and allows to selectively detect Cu2+ in MeCN with the formation of a 2:1 metal-receptor complex, with a green intense emission appreciable by naked eye under the UV lamp. The H2L copper complex preserves its emission properties in the presence of Cl−. The addition of basic anions (OH−, CN−, and F−) up to 10 equivalents caused the deprotonation of the squaramide NHs and a dramatic change of the emission properties of the H2L copper complex.


2021 ◽  
pp. 2100707
Author(s):  
Sina Stegmaier ◽  
Roland Schierholz ◽  
Ivan Povstugar ◽  
Juri Barthel ◽  
Simon P. Rittmeyer ◽  
...  

2021 ◽  
pp. 1639-1648
Author(s):  
Yu-Ting Chen ◽  
Marc Duquesnoy ◽  
Darren H. S. Tan ◽  
Jean-Marie Doux ◽  
Hedi Yang ◽  
...  

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