scholarly journals Construction of ultrathin MnO2 decorated graphene/carbon nanotube nanocomposites as efficient sulfur hosts for high-performance lithium–sulfur batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 6346-6355 ◽  
Author(s):  
Nan Wang ◽  
Sikan Peng ◽  
Xiang Chen ◽  
Jixian Wang ◽  
Chen Wang ◽  
...  

Ultrathin MnO2 nanosheets and nano size sulfur particles distributed uniformly on the surface of G/CNT hybrids, which exhibit high rate performance and long-term cycling performance.

2016 ◽  
Vol 26 (46) ◽  
pp. 8563-8563 ◽  
Author(s):  
Matthew Li ◽  
Yining Zhang ◽  
Xiaolei Wang ◽  
Wook Ahn ◽  
Gaopeng Jiang ◽  
...  

2016 ◽  
Vol 4 (35) ◽  
pp. 13646-13651 ◽  
Author(s):  
Cheng Zheng ◽  
Minying Liu ◽  
Wenqiang Chen ◽  
Lingxing Zeng ◽  
Mingdeng Wei

A Se/CMK-3 composite was in situ synthesized, exhibiting large capacity, high rate performance and excellent long-term cycling stability for Li-ion intercalation.


Nano Letters ◽  
2015 ◽  
Vol 15 (8) ◽  
pp. 5443-5448 ◽  
Author(s):  
Hongwei Chen ◽  
Changhong Wang ◽  
Yafei Dai ◽  
Shengqiang Qiu ◽  
Jinlong Yang ◽  
...  

2015 ◽  
Vol 293 ◽  
pp. 527-532 ◽  
Author(s):  
Junan Pan ◽  
Cheng Wu ◽  
Juanjuan Cheng ◽  
Yong Pan ◽  
Zengsheng Ma ◽  
...  

2020 ◽  
Vol 167 (10) ◽  
pp. 100512
Author(s):  
Rebecca Glaser ◽  
Feixiang Wu ◽  
Emily Register ◽  
Mara Tolksdorf ◽  
Billy Johnson ◽  
...  

2016 ◽  
Vol 26 (46) ◽  
pp. 8408-8417 ◽  
Author(s):  
Matthew Li ◽  
Yining Zhang ◽  
Xiaolei Wang ◽  
Wook Ahn ◽  
Gaopeng Jiang ◽  
...  

Nano Energy ◽  
2013 ◽  
Vol 2 (2) ◽  
pp. 314-321 ◽  
Author(s):  
Jia-Qi Huang ◽  
Xiao-Fei Liu ◽  
Qiang Zhang ◽  
Cheng-Meng Chen ◽  
Meng-Qiang Zhao ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
pp. 20-33
Author(s):  
Lian Wu ◽  
Yongqiang Dai ◽  
Wei Zeng ◽  
Jintao Huang ◽  
Bing Liao ◽  
...  

Abstract Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.


2021 ◽  
Author(s):  
Dongke Zhang ◽  
Ting Huang ◽  
Pengfei Zhao ◽  
Ze Zhang ◽  
Xingtao Qi ◽  
...  

Abstract Due to the low conductivity of sulfur and the dissolution of polysulfides, the research and application of lithium-sulfur (Li-S) batteries have encountered certain resistance. Increasing conductivity and introducing polarity into the sulfur host can effectively overcome these long-standing problems. Herein, We first prepared Co3W3C@ C@ CNTs / S material and used it in the cathode of lithium-sulfur batteries, The existence of carboxylated CNTs can form a conductive network, accelerate the transmission of electrons and improve the rate performance, and polar Co3W3C can form a strong interaction with polysulfide intermediates, effectively inhibiting its shuttle effect, improving the utilization of sulfur cathode electrodes, and improving the capacity and cycle stability. The Co3W3C@C@CNTs / S electrode material has a capacity of 1,093 mA h g-1 at a 0.1 A g− 1 and 482 mA h g-1 at 5 A g− 1. Even after 500 cycles of 2 A g− 1, the capacity of each cycle is only reduced by 0.08%. The excellent stability of this material can provide a new idea for the future development of lithium-sulfur batteries.


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