نتایج جستجو برای: Polysulfide polymer

تعداد نتایج: 93676  

2016
Yubao Sun Gai Li Yuanchu Lai Danli Zeng Hansong Cheng

Lithium-sulfur batteries are highly promising for electric energy storage with high energy density, abundant resources and low cost. However, the battery technologies have often suffered from a short cycle life and poor rate stability arising from the well-known "polysulfide shuttle" effect. Here, we report a novel cell design by sandwiching a sp(3) boron based single ion conducting polymer ele...

Journal: :علوم و تکنولوژی پلیمر 0
بهزاد شیرکوند هداوند منصور فخری هانی یزدی ازناوه

in petrochemical industry, the production of polyvinyl chloride (pvc) is accompanied by formation of heavy end wastes which consist of a mixture of di and multichloro compounds as kind of materials which are generated in ethylene dichloride (edc) purifcation. a high quantity of chloro compounds found in the heavy end waste allows it to be polymerized with alkaline polysulfdes to form polysulfde...

2015
Marco Agostini Jusef Hassoun

In this paper we report the performances of a lithium-ion sulfur battery characterized by a polymer configuration. The cell, based on a sulfur-carbon cathode, a Li-Sn-C nanostructured anode and a PEO-based, polysulfide-added electrolyte, shows very good electrochemical performances in terms of stability and delivered capacity. The remarkable cell performances are ascribed to the mitigation of t...

2017
Marianella Hernández Santana Antonio M. Grande Sybrand van der Zwaag Santiago J. García

Self-Healing Polymer: Effect of the Disulfide/Polysulfide Ratio” Marianella Hernańdez Santana,*,†,‡ Antonio M. Grande,† Sybrand van der Zwaag,† and Santiago J. García† †Novel Aerospace Materials Group, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands ‡Institute of Polymer Science and Technology (ICTP-CSIC), Juan de la Cierva 3, 28006...

2011
Yongguang Zhang Yan Zhao Kyung Eun Sun P. Chen

This paper reviews different modification methods to cathode, anode and electrolyte materials in view of their electrochemical properties for application in lithium/sulfur batteries. In the sulfur electrode, carbonaceous materials, conductive polymer materials, and metal oxide adsorbing materials are employed to enhance conductivity and reduce polysulfide dissolution. The effects of anodes and ...

2016
Hai Zhong Chunhua Wang Zhibin Xu Fei Ding Xinjiang Liu

Polymer solid state electrolytes are actively sought for their potential application in energy storage devices, particularly lithium metal rechargeable batteries. Herein, we report a polymer with high concentration salts as a quasi-solid state electrolyte used for lithium-sulfur cells, which shows an ionic conductivity of 1.6 mS cm(-1) at room temperature. The cycling performance of Li-S batter...

Journal: : 2021

The discharge of water from oil fields is become one the most significant environmental concerns associated with sector. This study features a low-density polysulfide polymer prepared by Sulfur and used sunflower oils react directly. Because both sulfur cooking are hydrophobic, can easily extract hydrocarbons like crude diesel fuel saltwater. petroleum industry by-product, leftover may be utili...

2015
Yukari Hatakeyama Kenji Takahashi Makoto Tominaga Hideo Kimura Toshio Ohta

BACKGROUND Hydrogen sulfide (H2S) is oxidized to polysulfide. Recent reports show that this sulfur compound modulates various biological functions. We have reported that H2S is involved in inflammatory pain in mice. On the other hand, little is known about the functional role of polysulfide in sensory neurons. Here we show that polysulfide selectively stimulates nociceptive TRPA1 and evokes acu...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
majid abdouss tohid farajpour, morteza derakhshani

epoxy – polysulfide copolymers without or with low amounts of epoxy in their structure have poor mechanical properties in oxidative curing system.to strengthen the mechanical properties of polysulfide elastomer inclusion of epoxy resin (epon828) as hard segment was studied. ft-ir spectroscopy and rheometry were used to verify the formation of epoxy-polysulfide copolymer.  results obtained from ...

2014
Yongming Sun Zhi Wei Seh Weiyang Li Hongbin Yao Guangyuan Zheng Yi Cui

0.1016/j.nanoen.2 lsevier Ltd. All rig thor at: Departm d University, Stan [email protected] ntributed equally Abstract Understanding the behavior of soluble intermediate lithium polysulfide species is vitally important for improving the electrochemical performances of lithium-sulfur batteries. Herein we explore a simple in-operando lithium-sulfur cell design to enable direct visualization of t...

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