scholarly journals A chemical map of NaSICON electrode materials for sodium-ion batteries

2021 ◽  
Vol 9 (1) ◽  
pp. 281-292
Author(s):  
Baltej Singh ◽  
Ziliang Wang ◽  
Sunkyu Park ◽  
Gopalakrishnan Sai Gautam ◽  
Jean-Noël Chotard ◽  
...  

Using first-principles calculations, we chart the chemical space of 3d transition metal-based NaSICON phosphates with the formula NaxMM′(PO4)3 (with M and M′ = Ti, V, Cr, Mn, Fe, Co and Ni). Novel NaSICON compositions were revealed.

2021 ◽  
Author(s):  
Wei Tian ◽  
Jin Tian ◽  
Naiming Lin ◽  
Ye Liu ◽  
Hui Zeng ◽  
...  

On account of multiple electron exchange reaction process, transition metal sulfides with high specific capacities are considered as promising electrode materials for sodium-ion batteries. However, their poor electrical conductivity and...


2017 ◽  
Vol 30 (1) ◽  
pp. 163-173 ◽  
Author(s):  
Hanmei Tang ◽  
Zhi Deng ◽  
Zhuonan Lin ◽  
Zhenbin Wang ◽  
Iek-Heng Chu ◽  
...  

2020 ◽  
Vol MA2020-02 (1) ◽  
pp. 25-25
Author(s):  
Claire Xiong ◽  
Changjian Deng ◽  
Eric Gabriel ◽  
Chunrong Ma ◽  
Yingying Xie ◽  
...  

2020 ◽  
Vol 44 (21) ◽  
pp. 8910-8921
Author(s):  
Abdul Majid ◽  
Khuzaima Hussain ◽  
Salah Ud-Din Khan ◽  
Shahab Ud-Din Khan

The application of sodium ion batteries (NIB) for use as rechargeable energy storage devices is yet under research due to limited knowledge on electrode materials.


Author(s):  
Ya-Ping Wang ◽  
B. P. Hou ◽  
Xin-Rui Cao ◽  
Shunqing Wu ◽  
Zi-Zhong Zhu

Abstract Prussian blue analogs (Na2FeFe(CN)6) have been regarded as potential cathode materials for sodium-ion batteries (SIBs) due to their low-cost iron resources and open framework. Herein, the detailed first-principles calculations have been performed to investigate the electrochemical properties of NaxFeFe(CN)6 during Na ion extraction. The material undergoes a phase transition from a dense rhombohedral to open cubic structure upon half-desodiation, which is resulted from competition of the Na−N Coulomb attraction and d−π covalent bonding of Fe−N. The analyses on the density of states, magnetic moments and Bader charges of NaxFeFe(CN)6 reveal that there involve in the successive redox reactions of high-spin Fe2+/Fe3+ and low-spin Fe2+/Fe3+ couples during desodiation. Moreover, the facile three-dimensional diffusion channels for Na+ ions exhibit low diffusion barriers of 0.4 eV ~ 0.44 eV, which ensures a rapid Na+ transport in the NaxFeFe(CN)6 framework, contributing to high rate performance of the battery. This study gives a deeper understanding of the electrochemical mechanisms of NaxFeFe(CN)6 during Na+ extraction, which is beneficial for the rational design of superior PBA cathodes for SIBs.


2016 ◽  
Vol 55 (16) ◽  
pp. 5090-5095 ◽  
Author(s):  
Moulay T. Sougrati ◽  
Ali Darwiche ◽  
Xiaohiu Liu ◽  
Abdelfattah Mahmoud ◽  
Raphael P. Hermann ◽  
...  

2018 ◽  
Vol 6 (33) ◽  
pp. 15985-15992 ◽  
Author(s):  
Dashuai Wang ◽  
Yingying Zhao ◽  
Ruqian Lian ◽  
Di Yang ◽  
Dong Zhang ◽  
...  

The mechanisms for phase transitions, charge-transfer reactions, and ionic diffusion kinetics during Na+ insertion in VS2 nanosheets were systematically investigated via experimental testing and first principles calculations.


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