Nitrogen-doped porous hollow carbon sphere-decorated separators for advanced lithium–sulfur batteries

Zhang, Zhian; Wang, Guanchao; Lai, Yanqing; Li, Jie; Zhang, Zhiyong; Chen, Wei

doi:10.1016/j.jpowsour.2015.09.067

Cited by 132 publications

(73 citation statements)

References 45 publications

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“…As shown in Figure c, at current rates of 0.5 and 1 C, the cell with NPC coated separator maintains reversible capacities of 550 and 511 mAh g −1 after 700 cycles, corresponding to low capacity decay rates of 0.077 % and 0.078 % per cycle, respectively. These decay rates are relative lower than most of the previously reports on other NPC modified separators (Table.S1) ,,. On the basis of the results above, with the NPC coated separator, the cells exhibit high capacity, excellent rate capability and remarkable long‐term cycling performance, owing to the following reasons.…”

Section: Resultsmentioning

confidence: 95%

Recycling Antibiotic Bacterial Residues for Application in High‐Performance Lithium−Sulfur Batteries

et al. 2018

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Antibiotic bacterial residue is a type of hazardous waste generated during the extraction of antibiotic. Owing to the large amount, difficult disposal, and negative impacts on the environment and human health of antibiotic bacterial residues, it is of great significance to find an efficient treatment and resource technology. In an effort to recycle antibiotic bacterial residues from “trash to treasure” and to target a high‐value application, antibiotic bacterial residues are utilized for the fabrication of nitrogen‐doped porous carbon, which are then used to modify a separator in the configuration of lithium–sulfur batteries. Owing to the high level of nitrogen doping, large surface area, and abundant pores, the obtained lithium–sulfur batteries deliver a high initial discharge capacity of 1426 mAh g−1 at 0.2 C and a low fading rate of 0.077 % per cycle within 700 cycles at 0.5 C with pure sulfur cathode.

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Section: Resultsmentioning

confidence: 95%

Recycling Antibiotic Bacterial Residues for Application in High‐Performance Lithium−Sulfur Batteries

et al. 2018

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“…12,34 Thevolume expansion can be also relieved to a large extent in the Li-S battery with the porous carbon matrix as abuffer. 29,54,55 Here we apply the porous NGand RGF as the carbon matrix to form NG/S and NG-RFG/S composite in Li-S battery cathode.…”

Section: Resultsmentioning

confidence: 99%

“…These main obstacles lead tolow active materialutilizations, poor cycling performance and lowcoulombic efficiency. [4][5][6][7][8][9][10][11] To address the aforementioned issues,numerous approaches have been carried out such as mesoporou/microporous carbon, 7, 12 graphene oxide(reduced graphene oxide ) , 4,8,[13][14][15][16] carbon nanotubes, 17 carbon nanofibers, [18][19][20] conductive polymer 21-25 , modified separator [26][27][28][29] , oxides 10, 30-32 and nitrides 9,33 . Among them, carbonbased materialsare usually used as the host of sulfur electrodes due to their high electrical conductivity and chemical stability with goodsulfur loading content.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical nitrogen-doped porous graphene/reduced fluorographene/sulfur hybrids for high-performance lithium–sulfur batteries

Liu

Xiang

et al. 2017

Phys. Chem. Chem. Phys.

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It is a great challenge to obtain high performance cathodes with a high sulfur loading and good cycle performance due to the dissolution of intermediate lithium polysulfides in lithium-sulfur batteries. Herein, we report a novel hierarchical hybrid composed of nitrogen-doped porous graphene (NG), reduced fluorographene or graphene fluoride (RFG), and sulfur as a composite cathode in the Li-S batteries. In comparison with sulfur composites based on only either nitrogen-doped porous graphene or pure reduced fluorographene, the hierarchical hybrid of RFG, NG, and sulfur (NG-RFG/S) shows a better reversible capacity and rate capability performance due to a better confinement effect of lithium polysulfides and sulfur. The NG-RFG/S cathode with ∼63.2% S content exhibits a high discharge capacity of 1120 mA h g and retains 632 mA h g after 100 cycles at 0.1C. At the higher rate of 0.5C, the cell still maintains a discharge capacity of about 300 mA h g after 800 cycles, which reveals the great potential of this hybrid cathode for long-cycle-life, high energy density storage applications.

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“…To address this problem, an alternative strategy is to coat the barrier layer on one surface of commercial separators . By using the separator as the substrate, the weight and thickness of barrier layer can be easily controlled.…”

Section: Modified Separators With Hollow Carbon Materialsmentioning

confidence: 99%

Recent Advances in Hollow Porous Carbon Materials for Lithium–Sulfur Batteries

Wang

Pei

et al. 2019

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Lithium–sulfur (Li–S) batteries are considered as one of the most potential next‐generation rechargeable batteries due to their high theoretical energy density. However, some critical issues, such as low capacity, poor cycling stability, and safety concerns, must be solved before Li–S batteries can be used practically. During the past decade, tremendous efforts have been devoted to the design and synthesis of electrode materials. Benefiting from their tunable structural parameters, hollow porous carbon materials (HPCM) remarkably enhance the performances of both sulfur cathodes and lithium anodes, promoting the development of high‐performance Li–S batteries. Here, together with the templated synthesis of HPCM, recent progresses of Li–S batteries based on HPCM are reviewed. Several important issues in Li–S batteries, including sulfur loading, polysulfide entrapping, and Li metal protection, are discussed, followed by a summary on recent research on HPCM‐based sulfur cathodes, modified separators, and lithium anodes. After the discussion on emerging technical obstacles toward high‐energy Li–S batteries, prospects for the future directions of HPCM research in the field of Li–S batteries are also proposed.

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Nitrogen-doped porous hollow carbon sphere-decorated separators for advanced lithium–sulfur batteries

Cited by 132 publications

References 45 publications

Recycling Antibiotic Bacterial Residues for Application in High‐Performance Lithium−Sulfur Batteries

Recycling Antibiotic Bacterial Residues for Application in High‐Performance Lithium−Sulfur Batteries

Hierarchical nitrogen-doped porous graphene/reduced fluorographene/sulfur hybrids for high-performance lithium–sulfur batteries

Recent Advances in Hollow Porous Carbon Materials for Lithium–Sulfur Batteries

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