High-Rate Nanostructured Pyrite Cathodes Enabled by Fluorinated Surface and Compact Grain Stacking via Sulfuration of Ionic Liquid Coated Fluorides

ACS Nano ◽  
2018 ◽  
Vol 12 (12) ◽  
pp. 12444-12455 ◽  
Author(s):  
Keyi Chen ◽  
Ye Zhang ◽  
Chilin Li
Nanoscale ◽  
2017 ◽  
Vol 9 (30) ◽  
pp. 10880-10885 ◽  
Author(s):  
Yu Yao ◽  
Yu Jiang ◽  
Hai Yang ◽  
Xizhen Sun ◽  
Yan Yu

A facile and simple hydrothermal assisted sol–gel route was developed to prepare nitrogen doped carbon coated Na3V2(PO4)3 nanocomposites (denoted as NVP@C–N) as cathodes for sodium ion batteries (NIBs).


Carbon ◽  
2017 ◽  
Vol 119 ◽  
pp. 287-295 ◽  
Author(s):  
Weiqian Tian ◽  
Qiuming Gao ◽  
Yanli Tan ◽  
Zeyu Li

2014 ◽  
Vol 26 (22) ◽  
pp. 3700-3705 ◽  
Author(s):  
Zhen-Yu Jin ◽  
An-Hui Lu ◽  
Yuan-Yuan Xu ◽  
Jin-Tao Zhang ◽  
Wen-Cui Li

Author(s):  
Yun Guang Zhu ◽  
Thaneer Malai Narayanan ◽  
Yukihisa Katayama ◽  
Yang Shao-horn

Abstract A stable Zn metal electrode can develop rechargeable zinc metal batteries (RZMBs) which have the high theoretical capacity (820 mAh/g), low redox potential, and intrinsic safety. However, the corrosion of Zn metal in aqueous electrolytes and Zn dendrite formation during the plating process leads to poor cycling and thus hinders the development of RZMBs. Here, we employed ionic liquid-based gel polymer (poly(vinylidene fluoride)-co-hexafluoropropylene, PVDF-HFP) and acetylene black (AB) to achieve a stable and flexible three-dimensional (3D) Zn/AB/PVDF-HFP film electrode with ionic and electronic conductive networks and high surface area, showing 26 times higher plating/stripping current than planar Zn plate. By developing a continuous structure between the ionic liquid-based gel polymer membrane and the flexible 3D Zn/AB/PVDF-HFP electrode, the low resistance, high rate capability and long cycle life (> 800 h) was obtained. Our work shows a flexible Zn film electrode and ionic liquid-based gel polymer electrolyte, could pave the path for rechargeable and high-cycle life thin-film RZMBs.


2020 ◽  
Vol 8 (7) ◽  
pp. 3574-3579 ◽  
Author(s):  
Kalani Periyapperuma ◽  
Elisabetta Arca ◽  
Steve Harvey ◽  
Chunmei Ban ◽  
Anthony Burrell ◽  
...  

Application of high current density demonstrated enhanced cycling efficiency and the formation of a stable and LiF dominated SEI providing a new path to enable fast charge battery technologies.


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