Effects on the Carbon Matrix as Conductor in Sulfur Electrode for Lithium/Sulfur Battery

Young Jin Choi; Sang Sik Jeong; Ki Won Kim; Hyo Jun Ahn; Jou Hyeon Ahn

doi:10.4028/www.scientific.net/MSF.510-511.1082

Paper Titles

Materials for Devices Applications in Life Sciences
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Low-Temperature Thermoelectric Properties of Zn₄Sb₃ Prepared by Hot Pressing
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Electrochemical Characteristics of Nano-Silicon/Graphite Composite for the Anode Material of Lithium Secondary Batteries
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Graphite/Carbon Nanofiber Composite Anode Modified with Nano Size Metal Particles for Lithium Ion Battery
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Effects on the Carbon Matrix as Conductor in Sulfur Electrode for Lithium/Sulfur Battery
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Fabrication and Thermoelectric Properties of p-Type Bi₁Sb₄Te_7.5 Alloy Doped with Fe₃O₄
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Characterization of a Piezoresistive Microcantilever as a Sensor for Detecting the Bio-Molecules
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Characterization of Electrical Properties of Si Nanocrystals Embedded in an Insulating Layer by Scanning Probe Microscopy
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Charge/Discharge and Electrochemical Characteristics of Secondary Lithium/Pyrite Battery
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HomeMaterials Science ForumMaterials Science Forum Vols. 510-511Effects on the Carbon Matrix as Conductor in...

Effects on the Carbon Matrix as Conductor in Sulfur Electrode for Lithium/Sulfur Battery

Abstract:

Lithium/sulfur battery has some problems such as low utilization of active material and poor cycle life owing to the dissolution of lithium polysulfide into electrolyte, aggregation of sulfur during charge-discharge process, and structural change of sulfur electrode. To overcome such problems, carbon nano tubes (CNTs) and graphitic nano fibers (GNFs) were added into the sulfur electrode. The addition of CNTs and GNFs having a network-like structure is expected to offer the structural stability and good electrical path of sulfur electrode. The morphology of fabricated sulfur electrode was observed by using scanning electron microscope (SEM), and the crystalline structure was characterized by using X-ray diffraction (XRD). The charge/discharge tests were conducted in the voltage range 3.2/1.5V (vs.Li) with a galvanostatic method.