Characteristics of (Fe, M)S2 (M=Co, Ni, Mo) Composite Powders Fabricated by MCP

Woo Hyun Jung; Dong Kyu Park; Kwang Chul Jung; Se Hoon Suck; In Sup Ahn; Ki Won Kim

doi:10.4028/www.scientific.net/MSF.534-536.17

Paper Titles

A New General Equation of Mean Particle Size for Different Atomization Processes
p.1

Acid-Insoluble Substances in Reduced Iron Powder from Ores
p.5

Aerosol Synthesis and Growth Mechanism of Magnetic Iron Nanoparticles
p.9

Atomization Using a Pressure-Gas-Atomizer
p.13

Characteristics of (Fe, M)S₂ (M=Co, Ni, Mo) Composite Powders Fabricated by MCP
p.17

Characteristics of Porous YAG Powders Fabricated by PVA Polymer Solution Technique
p.21

Characterization of GaP Nanowires Synthesized by Chemical Vapor Deposition
p.25

Consideration of Fe Nanoparticles and Nanowires Synthesized by Chemical Vapor Condensation Process
p.29

Development of High Performance Stainless Steel Powders
p.33

HomeMaterials Science ForumMaterials Science Forum Vols. 534-536Characteristics of (Fe, M)S2 (M=Co, Ni, Mo)...

Characteristics of (Fe, M)S₂ (M=Co, Ni, Mo) Composite Powders Fabricated by MCP

Abstract:

As the electrodes of secondary battery are made with sulfide composite powders, excellent electrode system of environmental non-toxicity and with high specific energy density and low material cost can be obtained. In this study, the (Fe, M)S2 composite powders was synthesized by mechanochemical processes (MCP) in order to improve of the cycle life in bettery. The formation of pyrite phase appreared at the case which adds nickel, but it was not observed in the case where the transition metal was does not add but the transition metal such as cobalt, molybdenum was added in stead. From charge-discharge test results, the initial discharge capasity of (Fe, Ni)S2 electrode was 845 mAh/g. The initial discharge capasity of (Fe, Co)S2 electrode was 500mAh/g, but it showed a better cycle perfoemance than the case where the diffrent transition metal was added.