Poly(ionic liquid)–zinc polyoxometalate composite as a binder-free cathode for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (7) ◽  
pp. 3018-3023 ◽  
Author(s):  
Vikram Singh ◽  
Anil Kumar Padhan ◽  
Subhasis Das Adhikary ◽  
Aarti Tiwari ◽  
Debaprasad Mandal ◽  
...  

A polyoxometalate–ionic polymer composite was utilized as highly stable and efficient catalyst for high performance Li–S battery cathode with high utilization of sulfur and capacity retention.

2020 ◽  
Vol 44 (2) ◽  
pp. 361-368 ◽  
Author(s):  
Hai Lu ◽  
Yan Zhu ◽  
Bin Zheng ◽  
Huiling Du ◽  
Xuezhao Zheng ◽  
...  

A hybrid IL-based electrolyte consisting of P1,2O1TFSI and the support solvent(s) of DOL and/or ETFE was applied in Li–S batteries, and a rational balance between Li2Sx dissolution and Li protection to achieve controllable shuttle was proposed.


2017 ◽  
Vol 5 (14) ◽  
pp. 6447-6454 ◽  
Author(s):  
Junling Guo ◽  
Xiaolong Zhang ◽  
Xinyu Du ◽  
Fengxiang Zhang

Nano-sheet array structured, highly stable Mn3O4 (compared with MnO2) provides long-lasting suppression of polysulfide shuttle in lithium sulfur batteries.


2015 ◽  
Vol 3 (15) ◽  
pp. 7870-7876 ◽  
Author(s):  
Xiaoqin Zhao ◽  
Min Liu ◽  
Yong Chen ◽  
Bo Hou ◽  
Na Zhang ◽  
...  

L-Ti3C2 was prepared by exfoliating Ti3AlC2 in 40% HF. With sulfur-loaded L-Ti3C2 as cathodes, Li–S batteries deliver a high initial discharge capacity of 1291 mA h g−1, an excellent capacity retention of 970 mA h g−1 and coulombic efficiency of 99% after 100 cycles.


2019 ◽  
Vol 1 (6) ◽  
pp. 2104-2122 ◽  
Author(s):  
Junling Guo ◽  
Jinping Liu

Binder-free structures offering structural and kinetic advantages for constructing high performance sulfur cathodes and dendrite-free Li metal anodes are reviewed.


2019 ◽  
Vol 11 (41) ◽  
pp. 38136-38146 ◽  
Author(s):  
Xiaomin Cai ◽  
Bowen Cui ◽  
Bei Ye ◽  
Wenqiang Wang ◽  
Jianlong Ding ◽  
...  

2020 ◽  
Vol 8 (6) ◽  
pp. 3027-3034 ◽  
Author(s):  
Jia Jin ◽  
Wenlong Cai ◽  
Jingsheng Cai ◽  
Yuanlong Shao ◽  
Yingze Song ◽  
...  

A self-supported and binder-free CoP@G/CC-S cathode affording high conductivity, a suppressed shuttle effect and favorable mechanical robustness enables high-performance flexible Li–S batteries for practical applications.


2020 ◽  
Vol 20 (9) ◽  
pp. 5629-5635
Author(s):  
Shiqi Li ◽  
Zhiqun Cheng ◽  
Tian Xie ◽  
Zhihua Dong ◽  
Guohua Liu

The practical application of lithium–sulfur batteries (LSBs) has been impeded by several chronic problems related to the insulating nature of sulfur and lithium sulfide, in addition to the dissolution and diffusion of lithium polysulfides. In view of these problems, a large variety of carbonaceous materials have been employed to enhance the electronic conductivity of the cathode and/or sequester lithium polysulfides within conductive matrixes. Although they may exhibit impressive electrochemical performance, the fabrication of most carbon materials involves costly precursors and complicated procedures. Waste paper—the main constituent of municipal waste—is composed of carbohydrates, and can be an ideal precursor for carbon materials. Herein, carbon microfiber meshes (CMFMs) obtained by the pyrolysis of common filter paper in argon (A-CMFM) or ammonia (N-CMFM) were used to form sulfur cathodes. Compared with LSBs based on A-CMFM, those based on N-CMFM demonstrated higher specific capacity and better rate capability, with a capacity of 650 mA h g−1 at 0.2 C and 550 mA h g−1 at 0.5 C. This was owing to the strong immobilization of lithium polysulfides resulting from the heteroatom doping and hydrophilicity of N-CMFM. The results indicate that cellulose paper-derived carbon is a promising candidate for application in high-performance LSBs.


2014 ◽  
Vol 1 (9) ◽  
pp. 1492-1496 ◽  
Author(s):  
Gregory Salitra ◽  
Elena Markevich ◽  
Ariel Rosenman ◽  
Yosef Talyosef ◽  
Doron Aurbach ◽  
...  

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