scholarly journals Visualization of structural evolution and phase distribution of a lithium vanadium oxide (Li1.1V3O8) electrode via an operando and in situ energy dispersive X-ray diffraction technique

2017 ◽  
Vol 19 (21) ◽  
pp. 14160-14169 ◽  
Author(s):  
Qing Zhang ◽  
Andrea M. Bruck ◽  
David C. Bock ◽  
Jing Li ◽  
Varun Sarbada ◽  
...  

EDXRD was used to profile the phase transitions and spatial phase distribution of a Li1.1V3O8electrode.

2021 ◽  
Author(s):  
Tyler Eastmond ◽  
Jing Hu ◽  
Vahidreza Alizadeh ◽  
Jay Oswald ◽  
Alireza Vakil Amirkhizi ◽  
...  

MRS Advances ◽  
2018 ◽  
Vol 3 (22) ◽  
pp. 1255-1260 ◽  
Author(s):  
Jiefu Yin ◽  
Wenzao Li ◽  
Mikaela Dunkin ◽  
Esther S. Takeuchi ◽  
Kenneth J. Takeuchi ◽  
...  

ABSTRACTUnderstanding the structural evolution of electrode material during electrochemical activity is important to elucidate the mechanism of (de)lithiation, and improve the electrochemical function based on the material properties. In this study, lithium vanadium oxide (LVO, LiV3O8) was investigated using ex-situ, in-situ, and operando experiments. Via a combination of in-situ X-ray diffraction (XRD) and density functional theory results, a reversible structural evolution during lithiation was revealed: from Li poor α phase (LiV3O8) to Li rich α phase (Li2.5V3O8) and finally β phase (Li4V3O8). In-situ and operando energy dispersive X-ray diffraction (EDXRD) provided tomographic information to visualize the spatial location of the phase evolution within the LVO electrode while inside a sealed lithium ion battery.


2008 ◽  
Vol 69 (9) ◽  
pp. 2240-2244 ◽  
Author(s):  
Patricia E. Kalita ◽  
Andrew L. Cornelius ◽  
Kristina E. Lipinska-Kalita ◽  
Cédric L. Gobin ◽  
H. Peter Liermann

2019 ◽  
Author(s):  
Si Athena Chen ◽  
◽  
Peter Heaney ◽  
Jeffrey E. Post ◽  
Peter J. Eng ◽  
...  

2016 ◽  
Vol 4 (20) ◽  
pp. 7718-7726 ◽  
Author(s):  
Dorsasadat Safanama ◽  
Neeraj Sharma ◽  
Rayavarapu Prasada Rao ◽  
Helen E. A. Brand ◽  
Stefan Adams

In situ synchrotron X-ray diffraction study of the synthesis of solid-electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) from the precursor glass reveals that an initially crystallized dopant poor phase transforms into the Al-doped LAGP at 800 °C.


2009 ◽  
Vol 105 (9) ◽  
pp. 093505 ◽  
Author(s):  
M. Croft ◽  
V. Shukla ◽  
E. K. Akdoğan ◽  
N. Jisrawi ◽  
Z. Zhong ◽  
...  

2020 ◽  
Author(s):  
Bikash Garai ◽  
Volodymyr Bon ◽  
Francesco Walenszus ◽  
Azat Khadiev ◽  
Dmitri Novikov ◽  
...  

Variation in the metal centres of M-M paddle-wheel SBU results in the formation of isostructural DUT-49(M) frameworks. However, the porosity of the framework was found to be different for each of the structures. While a high and moderate porosity was obtained for DUT-49(Cu) and DUT-49(Ni), respectively, other members of the series [DUT-49(M); M= Mn, Fe, Co, Zn, Cd] show very low porosity and shapes of the adsorption isotherms which is not expected for op phases of these MOFs. Investigation on those MOFs revealed that those frameworks undergo structural collapse during the solvent removal at the activation step. Thus, herein, we aimed to study the detailed structural transformations that are possibly occurring during the removal of the subcritical fluid from the framework.


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