Investigation of Tetravalent Cation Doping with (M = Sn4+, Zr4+, and Ge4+) on the Electrochemical Properties of Monoclinic Li3V2(PO4)3 Using First-Principles Calculations

Author(s):  
Chouaib Ahmani Ferdi ◽  
mohammed belaiche ◽  
IFFER EL ABADILA
2002 ◽  
Vol 756 ◽  
Author(s):  
Marina V. Koudriachova ◽  
Simon W. de Leeuw

The effect of substitution on the intercalation properties of anatase-structured titania has been investigated in first principles calculations. Ti4+-ions were substituted by Zr4+, Al3+ and Sc3+ respectively and O2- -ions by N3-. For each compound the open circuit voltage profile (OCV) was calculated and compared to anatase. Lithium intercalation proceeds as in pure anatase through a phase separation into a Li-rich and a Li-poor phase in all cases examined here. The Li-content of the phases depends on the nature of the dopant and its concentration. Substitution by N3--ions does not lead to lower potentials, whereas doping with trivalent Sc3+- and Al3+- ions decreases the intercalation voltage. Substitution by tetravalent Zr4+-ions within the range of solubility does not significantly affect the OCV of anatase. A correlation is observed between the predicted equilibrium voltage and the participation of the Ti4+-ions in accommodating the donated electron density upon lithiation.


2018 ◽  
Vol 20 (20) ◽  
pp. 14124-14132 ◽  
Author(s):  
Chol-Jun Yu ◽  
Un-Song Ri ◽  
Gum-Chol Ri ◽  
Jin-Song Kim

The formation energies of TFSI–Cn GICs, electrode voltages, and activation barriers for TFSI migration are obtained with first-principles calculations.


2015 ◽  
Vol 119 (52) ◽  
pp. 28749-28756 ◽  
Author(s):  
Tingting Cao ◽  
Chunsheng Shi ◽  
Naiqin Zhao ◽  
Chunnian He ◽  
Jiajun Li ◽  
...  

2017 ◽  
Vol 5 (47) ◽  
pp. 24720-24727 ◽  
Author(s):  
Dashuai Wang ◽  
Yu Gao ◽  
Yanhui Liu ◽  
Yury Gogotsi ◽  
Xing Meng ◽  
...  

MXene monolayers exhibit promising electrochemical properties for Cl-ion batteries.


2019 ◽  
Vol 21 (21) ◽  
pp. 11175-11180 ◽  
Author(s):  
Jiajia Zhang ◽  
Lei Yang ◽  
Yu Zhong ◽  
Hequn Hao ◽  
Mei Yang ◽  
...  

We have studied the effect of organic cation doping with dimethylammonium (DMA+), ethylammonium (EA+), and guanidinium (GA+) on the properties of the CsPbI3 perovskite by performing first-principles calculations.


2019 ◽  
Vol 7 (15) ◽  
pp. 8873-8881 ◽  
Author(s):  
Jing Xu ◽  
Dashuai Wang ◽  
Ruqian Lian ◽  
Xinying Gao ◽  
Yanhui Liu ◽  
...  

VC2, a new two-dimensional transition metal carbide containing C2 dimers, shows promising electrochemical properties in LIBs.


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