Preparation and electrochemical properties of sulfur-polypyrrole composite cathodes for electric vehicle applications

Hyun, Jung Eun; Lee, Pyoung‐Chan; Ishihara, Takeshi

doi:10.1016/j.electacta.2015.07.055

Cited by 23 publications

(18 citation statements)

References 25 publications

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Section: Vulcanization/inverse Vulcanization Polysulfide Polymer Basementioning

confidence: 99%

“…Hyun et al prepared a tubular‐shaped SPPy composite (Figure f,g) using a self‐degraded template method for further research to investigate its potential for use as a cathode in electric vehicle applications. The SPPy composite electrode was fabricated with a sulfur loading of 4.5 mg cm −2 , which delivered a specific capacity of ≈500 mAh g −1 at a current density of 100 mA g −1 after 30 cycles, whereas that of the bare sulfur electrode was ≈300 mAh g −1 .…”

Section: Vulcanization/inverse Vulcanization Polysulfide Polymer Basementioning

confidence: 99%

Section: Vulcanized Conductive Polymersmentioning

confidence: 99%

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Recent Advances in Applying Vulcanization/Inverse Vulcanization Methods to Achieve High‐Performance Sulfur‐Containing Polymer Cathode Materials for Li–S Batteries

2018

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Lithium–sulfur (Li–S) batteries have great prospects as next‐generation energy storage devices because of their high energy density, inexpensive raw materials, and low pollution. However, the development of Li–S batteries is currently restricted by the shuttle effect that occurs during the charge–discharge process. Sulfur‐containing polymers are attractive for use as Li–S battery cathode materials to alleviate the shuttle effect through chemical bonds as well as physical confinement. Moreover, polymers have numerous different molecular structures and definable functional groups. A suitable monomer design can result in a final sulfur‐containing polymer possessing favorable properties such as ion and electron conductivity, high sulfur content, appropriate viscosity, processability, and controllable morphology. These characteristics are of great benefit for use in Li–S battery cathodes to achieve high capacity and stable discharge at high rates. This review summarizes recent developments in sulfur‐containing polymer cathode materials. Focusing on polymers prepared by the facile and low‐cost vulcanization/inverse vulcanization methods and the polymer‐based composites, the chemical structures and electrochemical mechanisms are clarified, and the relationship between their structures and performances is discussed comprehensively. It is expected that more polymer electrode materials with high performance will emerge in the coming years.

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Section: Vulcanization/inverse Vulcanization Polysulfide Polymer Basementioning

confidence: 99%

Section: Vulcanization/inverse Vulcanization Polysulfide Polymer Basementioning

confidence: 99%

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Recent Advances in Applying Vulcanization/Inverse Vulcanization Methods to Achieve High‐Performance Sulfur‐Containing Polymer Cathode Materials for Li–S Batteries

2018

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“…As an alternative to carbon coating, sulfur has also been embedded within a conductive polymer since more than a decade [191][192][193]. However, at that time, the average potential was lowered to 1.6 V, while the average potential without the polymer is 2.15 V with respect to Li + /Li, which suggests a large overpotential, and the internal shuttle effect was not solved either.…”

Section: Polymer Additives To the Cathodementioning

confidence: 99%

Advances in lithium—sulfur batteries

Zhang

Xie

Kim

et al. 2017

Materials Science and Engineering: R: Reports

112

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International audienceThis review is focused on the state-of-the-art of lithium-sulfur batteries. The great advantage of these energy storage devices in view of their theoretical specific capacity (2500 Wh kg−1, 2800 Wh L−1, assuming complete reaction to Li2S) has been the motivation for a huge amount of works. However, these batteries suffer of disadvantages that have restricted their applications such as high electrical resistance, capacity fading, self-discharge, mainly due to the so-called shuttle effect. Strategies have been developed with the recent modifications that have been proposed as a remedy to the shuttle effect, and the insulating nature of the polysulfides. All the elements of the battery are concerned and the solution, as we present herewith, is a combination of modification of the cathode, of the separator, of the electrolyte, including the choice of binder, even though few binder-free architectures have now been proposed

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“…One of the promising ways of partially solving the problem of sulfur utilization is the development of new technologies for producing electrically conductive, electrochemically active polymeric sulfur composites for their application as the main components of active cathode materials in modern lithium-sulfur batteries [4][5][6][7][8][9][10][11][12][13] . With the development of portable electronic devices, as well as the increasing interest in the world of electric vehicles and large-scale energy storage applications, great attention is paid to lithium-sulfur (Li-S) batteries due to their high energy density and theoretical capacity 14,15 . The lithium-sulfur battery has a high theoretical energy density of 2600 W .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of High-Sulfur Polymers by Redox Copolymerization of Elemental Sulfur with Pyrrole

Bishimbayeva¹,

Прозорова²,

Zhumabayeva³

et al. 2018

Orient. J. Chem

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In this work we discuss the results of obtaining new high-sulfur polymers based on pyrrole and elemental sulfur. For the synthesis of high-sulfur based on pyrrole polymers was used method of co-oxidation of pyrrole and polysulfone, previously generated in situ from an aqueous solution of sodium polysulphide in the presence of H 2 O 2 /FeCl 3 /HCl oxidation system. Depending on the reaction conditions, the addition of reaction mixture of gelatin or surfactant, sulfur-pyrrole polymers with a high sulfur content were obtained: from 75.2 to 87.9%. The conditions for carrying out the reaction are selected, which allow varying the sulfur content in obtained copolymers. The physico-chemical properties and microstructures of the obtained copolymers were studied. It is established that the synthesized copolymers have thermal stability, semiconducting properties, have a developed microstructure, with sufficiently small microparticles of narrow polydispersity and are promising for the development of active cathode materials of modern rechargeable lithium current sources.

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Preparation and electrochemical properties of sulfur-polypyrrole composite cathodes for electric vehicle applications

Cited by 23 publications

References 25 publications

Recent Advances in Applying Vulcanization/Inverse Vulcanization Methods to Achieve High‐Performance Sulfur‐Containing Polymer Cathode Materials for Li–S Batteries

Recent Advances in Applying Vulcanization/Inverse Vulcanization Methods to Achieve High‐Performance Sulfur‐Containing Polymer Cathode Materials for Li–S Batteries

Advances in lithium—sulfur batteries

Synthesis of High-Sulfur Polymers by Redox Copolymerization of Elemental Sulfur with Pyrrole

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