Synthesis and electrochemical properties of a sulfur-multi walled carbon nanotubes composite as a cathode material for lithium sulfur batteries

Ahn, Wook; Kim, Kwang Bum; Jung, Kyu Nam; Shin, Kyoung Hee; Jin, Chang Soo

doi:10.1016/j.jpowsour.2011.11.074

Cited by 212 publications

(124 citation statements)

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“…In order to operate the lithium-sulfur battery, conductive agents should be introduced into the sulfur (by synthesizing composites of sulfur/conductive agents). It has been reported that mesoporous carbon, multiwalled carbon nanotubes, carbon fibre, reduced graphene oxide, and carbon black have all been applied to improve the electrochemical performance of the sulfur cathode in lithium/sulfur batteries [5,6,[8][9][10][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Split-half-tubular polypyrrole@sulfur@polypyrrole composite with a novel three-layer-3D structure as cathode for lithium/sulfur batteries

et al. 2015

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. (2015). Splithalf-tubular polypyrrole@sulfur@polypyrrole composite with a novel three-layer-3D structure as cathode for lithium/sulfur batteries. Nano Energy, 11 587-599.Split-half-tubular polypyrrole@sulfur@polypyrrole composite with a novel three-layer-3D structure as cathode for lithium/sulfur batteries AbstractPolypyrrole@Sulfur@Polypyrrole composite with a novel three-layer-3D-structure, which consists of an external polypyrrole coating layer, an intermediate sulfur filling layer, and an internal polypyrrole split-halftube conducting matrix layer, has been synthesized by the oxidative chemical polymerization method and chemical precipitation method in this article. Due to this unique three-layer-structure, the discharge specific capacity of Polypyrrole@Sulfur@Polypyrrole composite cathode retained at 554mAh g-1 after 50 cycles, which represents 68.8% retention of the initial discharge specific capacity. In comparison, the Sulfur@Polypyrrole composite cathode, with the same components as Polypyrrole@Sulfur@Polypyrrole composite, but without the three-layer-structure, has the discharge specific capacity of 370mAh g-1 after 50 cycles, which is 32.3% retention of the initial discharge specific capacity. Therefore, it can be concluded that the unique three-layer-structure plays an essential role in improving the performance of the Lithium/Sulfur batteries. Moreover, the effects of LiNO3 additive in the electrolyte on coulombic efficiency are discussed to further confirm the containment function of the external layer of polypyrrole in the Polypyrrole@Sulfur@Polypyrrole composite, which is the evidence that the external layer of polypyrrole can effectively confine the dissolved polysulfides.Keywords split, cathode, structure, 3d, layer, three, novel, composite, sulfur, batteries, polypyrrole, lithium, tubular, half Disciplines Engineering | Physical Sciences and Mathematics Publication DetailsLiang, X., Zhang, M., Kaiser, M. Rejaul., Gao, X., Konstantinov, K., Tandiono, R., Wang, Z., Liu, H., Dou, S. & Wang, J. (2015). Split-half-tubular polypyrrole@sulfur@polypyrrole composite with a novel three-layer-3D structure as cathode for lithium/sulfur batteries. Nano Energy, 11 587-599. AbstractPolypyrrole@Sulfur@Polypyrrole composite with a novel three-layer-3D-structure, which consists of an external polypyrrole coating layer, an intermediate sulfur filling layer, and an internal polypyrrole split-half-tube conducting matrix layer, has been synthesized by the oxidative chemical polymerization method and chemical precipitation method in this paper. Due to this unique three-layer-structure, the discharge specific capacity of Polypyrrole@Sulfur@Polypyrrole composite cathode retained at 554 mAh g -1 after 50 cycles, which represents 68.8% retention of the initial discharge specific capacity. In comparison, the Sulfur@Polypyrrole composite cathode, with the same components as Polypyrrole@Sulfur@Polypyrrole composite, but without the three-layer-structure, has the discharge specific capacity of 370 mAh g -1 after 50 cycl...

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Section: Introductionmentioning

confidence: 99%

Split-half-tubular polypyrrole@sulfur@polypyrrole composite with a novel three-layer-3D structure as cathode for lithium/sulfur batteries

et al. 2015

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“…The dissolved high-order polysulfides can diffuse from the cathode and react with the lithium anode either to generate insoluble lower-order polysulfides in the form of Li2S or Li2S2, leading to the precipitation of these species on the surface during cyclic processes, or form soluble low-order polysulfides, which is then transported back to the cathode side, resulting in a shuttle reaction [6,7]. The shuttle reaction and deposition of Li2S or Li2S2 on the Li anode lead to the low utilization of sulfur, low coulombic efficiency of the sulfur cathode, and fast capacity fading [8,9].…”

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confidence: 99%

Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium–sulfur batteries

Wang

Zhang

Chen

et al. 2015

Carbon

171

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Guo, Z. (2015). Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium-sulfur batteries. Carbon, 81 782-787.Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium-sulfur batteries AbstractA novel type of one-dimensional ordered mesoporous carbon fiber has been prepared via the electrospinning technique by using resol as the carbon source and triblock copolymer Pluronic F127 as the template. Sulfur is then encapsulated in this ordered mesoporous carbon fibers by a simple thermal treatment. The interwoven fibrous nanostructure has favorably mechanical stability and can provide an effective conductive network for sulfur and polysulfides during cycling. The ordered mesopores can also restrain the diffusion of long-chain polysulfides. The resulting ordered mesoporous carbon fiber sulfur (OMCF-S) composite with 63% S exhibits high reversible capacity, good capacity retention and enhanced rate capacity when used as cathode in rechargeable lithium-sulfur batteries. The resulting OMCF-S electrode maintains a stable discharge capacity of 690 mAh/g at 0.3 C, even after 300 cycles. ABSTRACT:A novel type of one-dimensional ordered mesoporous carbon fiber has been prepared via the electrospinning technique by using resol as the carbon source and triblock copolymer Pluronic F127 as the template. Sulfur is then encapsulated in this ordered mesoporous carbon fibers by a simple thermal treatment. The interwoven fibrous nanostructure has favorably mechanical stability and can provide an effective conductive network for sulfur and polysulfides during cycling. The ordered mesopores can also restrain the diffusion of long-chain polysulfides. The resulting ordered mesoporous carbon fiber sulfur (OMCF-S) composite with 63% S exhibits high reversible capacity, good capacity retention and enhanced rate capacity when used as cathode in rechargeable lithium-sulfur batteries. The resulting OMCF-S electrode maintains a stable discharge capacity of 690 mAh/g at 0.3 C, even after 300 cycles.

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“…If this redox reaction is reversible and complete, a very high theoretical capacity of 1675 mA h g -1 will be achieved [7,8]. Moreover, the abundance, low toxicity and low cost of sulfur as the cathode material make the Li-S cell a qualified candidate as a cheap, eco-friendly and longlasting rechargeable cell with high performance [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Polypyrrole/TiO2 nanotube arrays with coaxial heterogeneous structure as sulfur hosts for lithium sulfur batteries

Zhao

Zhu

Chen

et al. 2016

Journal of Power Sources

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. ABSTRACTThe lithium-sulfur cell has shown great prospects for future energy conversion and storage systems due to the high theoretical specific capacity of sulfur, 1675 mAh g -1 . However, it has been hindered by rapid capacity decay and low energy efficiency. In this work, polypyrrole (PPy)/TiO2 nanotubes with coaxial heterogeneous structure as the substrate of the cathode is prepared and used to improve the electrochemical performance of sulfur electrodes. TiO2 nanotubes decorated with PPy provide a highly ordered conductive framework for Li + ion diffusion and reaction with sulfur. This architecture also is helpful for trapping the produced polysulfides, and as a result attenuates the capacity decay. Furthermore, the heat treatment temperature used in the sulfur loading process has been confirmed to have an important impact on the overall performance of the resultant cell. The as-designed S/PPy/TiO2 nanotube cathode using an elevated heating temperature shows excellent 2 cycling stability with a high discharge capacity of 1150 mAh g -1 and average coulombic efficiency of 96% after 100 cycles.

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Synthesis and electrochemical properties of a sulfur-multi walled carbon nanotubes composite as a cathode material for lithium sulfur batteries

Cited by 212 publications

References 24 publications

Split-half-tubular polypyrrole@sulfur@polypyrrole composite with a novel three-layer-3D structure as cathode for lithium/sulfur batteries

Split-half-tubular polypyrrole@sulfur@polypyrrole composite with a novel three-layer-3D structure as cathode for lithium/sulfur batteries

Large-scale synthesis of ordered mesoporous carbon fiber and its application as cathode material for lithium–sulfur batteries

Polypyrrole/TiO2 nanotube arrays with coaxial heterogeneous structure as sulfur hosts for lithium sulfur batteries

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