Realizing Three-Electron Redox Reactions in NASICON-Structured Na3 MnTi(PO4 )3 for Sodium-Ion Batteries

2019 ◽  
Vol 9 (9) ◽  
pp. 1803436 ◽  
Author(s):  
Ting Zhu ◽  
Ping Hu ◽  
Xuanpeng Wang ◽  
Zhenhui Liu ◽  
Wen Luo ◽  
...  
Author(s):  
Jaewoon Lee ◽  
Sojung Koo ◽  
Jinwoo Lee ◽  
Duho Kim

Considering Mn4+ (3d3)-based cations, various layered oxides (A[AyM1-y]O2, where A and M refer to alkali metals and transition metals, respectively) exhibiting oxygen-redox reactions have been investigated extensively to achieve high...


2018 ◽  
Vol 6 (37) ◽  
pp. 18036-18043 ◽  
Author(s):  
Duho Kim ◽  
Maenghyo Cho ◽  
Kyeongjae Cho

Based on a cation–anion-coupled redox paradigm, Na(Li1/3Mn1/2Cr1/6)O2 is systematically designed to use rational anion redox reactions (O2−/O−) for high energy density cathodes in sodium-ion batteries.


ChemSusChem ◽  
2015 ◽  
Vol 9 (1) ◽  
pp. 97-108 ◽  
Author(s):  
Siham Doubaji ◽  
Bertrand Philippe ◽  
Ismael Saadoune ◽  
Mihaela Gorgoi ◽  
Torbjorn Gustafsson ◽  
...  

2015 ◽  
Vol 51 (38) ◽  
pp. 8181-8184 ◽  
Author(s):  
Dezhi Yang ◽  
Jing Xu ◽  
Xiao-Zhen Liao ◽  
Hong Wang ◽  
Yu-Shi He ◽  
...  

Prussian blue without coordinated water delivered super-high electrochemical performances with sufficient redox reactions when employed as a cathode in sodium ion batteries.


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.


2021 ◽  
Vol 9 (16) ◽  
pp. 10458-10465
Author(s):  
Hongwei Tao ◽  
Ruxing Wang ◽  
Yun Tang ◽  
Min Zhou ◽  
Kangli Wang ◽  
...  

The low-valence titanium oxides (TiO, Ti2O) were synthesized by electric field control method. The multi-electron redox reactions and fast charge transfer kinetics result in the excellent Na storage performances of low-valence titanium oxides.


2021 ◽  
Vol 2021 ◽  
pp. 1-22
Author(s):  
Natalia Voronina ◽  
Seung-Taek Myung

The development of sodium-ion batteries (SIBs), which are promising alternatives to lithium-ion batteries (LIBs), offers new opportunities to address the depletion of Li and Co resources; however, their implementation is hindered by their relatively low capacities and moderate operation voltages and resulting low energy densities. To overcome these limitations, considerable attention has been focused on anionic redox reactions, which proceed at high voltages with extra capacity. This manuscript covers the origin and recent development of anionic redox electrode materials for SIBs, including state-of-the-art P2- and O3-type layered oxides. We sequentially analyze the anion activity–structure–performance relationship in electrode materials. Finally, we discuss remaining challenges and suggest new strategies for future research in anion-redox cathode materials for SIBs.


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