scholarly journals A global view of the phase transitions of SnO2 in rechargeable batteries based on results of high throughput calculations

2015 ◽  
Vol 3 (38) ◽  
pp. 19483-19489 ◽  
Author(s):  
Yingchun Cheng ◽  
Anmin Nie ◽  
Li-Yong Gan ◽  
Qingyun Zhang ◽  
Udo Schwingenschlögl

The Materials Project database of high throughput first principles calculations is used to investigate the phase transitions of SnO2 during ion intercalation and extraction.

2019 ◽  
Vol 7 (4) ◽  
pp. 145-151 ◽  
Author(s):  
Yuchen Liu ◽  
Valentino R. Cooper ◽  
Banghui Wang ◽  
Huimin Xiang ◽  
Qian Li ◽  
...  

2019 ◽  
Vol 5 (2) ◽  
pp. eaau7728 ◽  
Author(s):  
Xiang Chen ◽  
Xiao-Ru Chen ◽  
Ting-Zheng Hou ◽  
Bo-Quan Li ◽  
Xin-Bing Cheng ◽  
...  

The uncontrollable growth of lithium (Li) dendrites seriously impedes practical applications of Li metal batteries. Various lithiophilic conductive frameworks, especially carbon hosts, are used to guide uniform Li nucleation and thus deliver a dendrite-free composite anode. However, the lithiophilic nature of these carbon hosts is poorly understood. Herein, the lithiophilicity chemistry of heteroatom-doped carbon is investigated through both first principles calculations and experimental verifications to guide uniform Li nucleation. The electronegativity, local dipole, and charge transfer are proposed to reveal the lithiophilicity of doping sites. Li bond chemistry further deepens the understanding of lithiophilicity. The O-doped and O/B–co-doped carbons exhibit the best lithiophilicity among single-doped and co-doped carbons, respectively. The excellent lithiophilicity achieved by O-doping carbon is further validated by Li nucleation overpotential measurement. This work uncovers the lithiophilicity chemistry of heteroatom-doped carbons and affords a mechanistic guidance to Li metal anode frameworks for safe rechargeable batteries.


2016 ◽  
Vol 94 (13) ◽  
Author(s):  
Yongliang Guo ◽  
Changying Wang ◽  
Wujie Qiu ◽  
Xuezhi Ke ◽  
Ping Huai ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 27136-27142 ◽  
Author(s):  
Xurui Li ◽  
Junyong Wang ◽  
Jinzhong Zhang ◽  
Yawei Li ◽  
Zhigao Hu ◽  
...  

The temperature-dependent phonon spectra and magnetoresistance of CuCr1−xMgxO2 films have been studied, combined with first-principles calculations.


2019 ◽  
Vol 21 (40) ◽  
pp. 22647-22653 ◽  
Author(s):  
Georgy V. Pushkarev ◽  
Vladimir G. Mazurenko ◽  
Vladimir V. Mazurenko ◽  
Danil W. Boukhvalov

First principles calculations of the magnetic and electronic properties of VSe2 describing the transition between two structural phases (H,T) were performed.


2014 ◽  
Vol 16 (33) ◽  
pp. 17724-17733 ◽  
Author(s):  
Nasrin Sarmadian ◽  
Rolando Saniz ◽  
Bart Partoens ◽  
Dirk Lamoen ◽  
Kalpana Volety ◽  
...  

We present a high-throughput computing scheme based on density functional theory (DFT) to generate a class of oxides and screen them with the aim of identifying those that might be electronically appropriate for transparent conducting oxide (TCO) applications.


2016 ◽  
Vol 18 (24) ◽  
pp. 16527-16534 ◽  
Author(s):  
Andreas Hermann

First-principles calculations on the phase evolution of RbOH and CsOH under compression suggest new high-pressure phases in both compounds.


2013 ◽  
Vol 06 (03) ◽  
pp. 1350026 ◽  
Author(s):  
HONG-JIAN FENG ◽  
XIAOYUN HU ◽  
HUIJUAN CHEN

First-principles calculations on BiFeO3 under low-pressure region show that the rhombohedral-monoclinic and rhombohedral-orthorhombic phase transitions can be found around the critical pressure value, ~9 GPa.We suggest that the structure involve the combination of these three phases and change to the pure orthorhombic phase gradually as pressure is beyond the critical value. Moreover, it is a first-order structural phase transition, accompanied with antiferromagnetic–ferromagnetic transition.


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