Boosting ultrahigh initial Coulombic efficiency of porous carbon anode for sodium-ion batteries via in-situ fabricating passivation interface

Author(s):  
Minghao Zhang ◽  
Yu Li ◽  
Feng Wu ◽  
Zhaohua Wang ◽  
Ying Bai ◽  
...  

Porous carbon material is regarded as one of the promising candidates of sodium-ion batteries (SIBs) due to its fast sodium storage performance. However, the inadequate initial Coulombic efficiency (ICE) resulting...

2019 ◽  
Vol 7 (27) ◽  
pp. 16149-16160 ◽  
Author(s):  
Jun Kang ◽  
Dae-Yeong Kim ◽  
Seen-Ae Chae ◽  
Nagahiro Saito ◽  
Si-Young Choi ◽  
...  

Generally, carbon anode materials used in sodium-ion batteries do not exhibit good electrochemical performance because of low coulombic efficiency (CE).


RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22663-22667
Author(s):  
Yaru Liang ◽  
Rutie Liu ◽  
Xiang Xiong

A novel S-doped porous carbon material with superior sodium storage performance was obtained through spray-drying and subsequent sulfur doping treatment.


2018 ◽  
Vol 11 (06) ◽  
pp. 1830003 ◽  
Author(s):  
Ismaila El Moctar ◽  
Qiao Ni ◽  
Ying Bai ◽  
Feng Wu ◽  
Chuan Wu

Recent results have shown that sodium-ion batteries complement lithium-ion batteries well because of the low cost and abundance of sodium resources. Hard carbon is believed to be the most promising anode material for sodium-ion batteries due to the expanded graphene interlayers, suitable working voltage and relatively low cost. However, the low initial coulombic efficiency and rate performance still remains challenging. The focus of this review is to give a summary of the recent progresses on hard carbon for sodium-ion batteries including the impact of the uniqueness of carbon precursors and strategies to improve the performance of hard carbon; highlight the advantages and performances of the hard carbon. Additionally, the current problems of hard carbon for sodium-ion batteries and some challenges and perspectives on designing better hard-carbon anode materials are also provided.


2019 ◽  
Vol 55 (39) ◽  
pp. 5611-5614 ◽  
Author(s):  
Kai Wu ◽  
Fei Chen ◽  
Zhongtao Ma ◽  
Bingkun Guo ◽  
Yingchun Lyu ◽  
...  

A hexagonal FeSe anode for sodium-ion batteries shows desirable electrochemical performance with an irreversible phase transition from the hexagonal to tetragonal phase.


2019 ◽  
Vol 7 (11) ◽  
pp. 6363-6373 ◽  
Author(s):  
Wenlong Shao ◽  
Fangyuan Hu ◽  
Ce Song ◽  
Jinyan Wang ◽  
Cheng Liu ◽  
...  

N, S-co-doped hierarchical porous carbon with stable sodium storage were prepared by designing the precursors and changing the reaction temperature.


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