Three-dimensional nanocomposites of graphene/carbon nanotube matrix-embedded Si nanoparticles for superior lithium ion batteries
Dafang He1, 2, Lixian Li1, Fengjuan Bai2, Chenyang Zha1, Liming Shen1, Harold H. Kung3, Ningzhong Bao1*
1State Key Laboratory of Material-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, P. R. China.
2Jiangnan Graphene Research Institute, Changzhou, Jiangsu 213149, P. R. China
3Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, USA
Adv. Mater. Lett., 2017, 8 (3), pp 206-211
DOI: 10.5185/amlett.2017.7038
Publication Date (Web): Jan 28, 2017
Copyright © 2019 VBRI Press
E-mail: nzhbao@njtech.edu.cn
A unique hierarchically nanostructured composite of Si nanoparticles (Si NPs) embedded in a three-dimensional (3D) carbon nanotube (CNT)/graphene sheet (GS) matrix (Si@CNT/GS) is fabricated by freeze-drying and thermal reduction. In this novel nanostructured composite, since the intertwined elastic CNTs effectively disperse the Si NP anode material and provide extra physical connections between Si NPs and the surrounding 3D conductive matrix, the interconnected 3D CNT/GS matrix can serve to buffer the volume change of the Si NPs during cycling while simultaneously enhance the electrical conductivity of the overall electrode. As a result, Si@CNT/GS nanocomposite exhibits a high reversible capacity of 1362 mAh·g-1 at 500 mA·g-1 over 500 cycles, and an excellent rate capability of 504 mAh·g-1 at 8400 mA·g-1, considerably improving the battery performance compared with those electrodes made from Si@graphene nanocomposites, thus exhibiting great potential as an anode composite structure for lithium storage.
Nanocomposites, silicon nanoparticles, graphene, carbon nanotube, lithium ion battery.
Wearable Healthcare Devices
Nano-Graphene and Its Derivatives for Fabrication of Flexible Electronic Devices: A Quick Review
Natural Fibers as Viable Sources for the Development of Structural, Semi-Structural, and Technological Materials – A Review
Geometrical Characterization of Wire-and-Arc Additive Manufactured Steel Element
Plasma Activated Water Generation and its Application in Agriculture
Development of Advanced Electrode Materials on Porous Silicon for Micropower Formic Acid-Oxygen Fuel Cells
Water Management within Tragacanth gum-g-polyitaconic Acid Hydrogels
Synthesis and Characterization of Humic Acid-coated Fe3O4 Nanoparticles for Methylene Blue Adsorption Activity
Synthesis and characterization of thermally stable flame retardant thermoplastic polyphosphazenes
Synthesis of Rod-coil Molecules bearing Oligo-Phenylene Vinylene Motifs: Effect of PEO Chain Lengths on the Evolution of Nanostructures Morphology and their Photophysical Properties
Dielectric Properties of Cu based Polymeric Composites in X-band of Microwave Frequency
Critical Association Concentration of Dansyl-Poly (acrylic acid) Synthetized by Redox Polymerization Followed by an Esterification in Aqueous Solution: Spectrophotometric and Tensiometric Studies
Influence of Iron Doping on Structural and Optical Properties of Nickel Oxide Nanoparticles
Healthcare informatics driven nanotechnology
Brief Review: Simulation of Novel Systems Using Duality Quantum Algorithm
Significant Quality Parameters of Finishing Technology in Offset Printing on Solid Board Boxes Depending on the type of Material
Generation of entanglement in spin states of Rydberg atoms by chirped optical pulses
Matrix and Variant Transformations Simulate Statistical Canonical Ensembles from Fock to Poissonian States of Random Sequences
The Vortex Glass-Liquid Transition in Fe1.02Se Crystal
Magnetic Properties of Intercalated Gr/Ni (111) System
Functionalized Nano Carbon for excellent Microwave Absorption at GHz Frequency
Deformation Texture Modelling by Mean-Field and Full-Field Approaches
Growth, Linear and Nonlinear Optical Studies of D-Tartaric Acid Crystal
Graphene-MoS2-Au-TiO2-SiO2 Hybrid SPR Biosensor for Formalin Detection: Numerical Analysis and Development
Microstructure and Mechanical Characterization Study in the IN718/BNi-2/316L Joint by Transient Liquid Phase Bonding Process
Stress Fields at the Central Point of Arc Crack under Uniaxial Tension
Copyright ©2010-2019 VBRI Press
Full Article