Effect of Fluorine Content on the Electrochemical Properties of PVDF-Derived Carbons for Lithium Ion Battery

Lu Shi; Chao Lin Miao; Gai Rong Chen; Bin Xu; Shi Chen

doi:10.4028/www.scientific.net/AMR.463-464.730

Paper Titles

System to Surface Control in Robot Machining
p.708

The Influence of Circulation Quenching on Temper Brittleness of Steel EA4T
p.712

The Influence of Paper Brightness on Color Reproduction of Printed Matter
p.717

Annealing Effect on Synthesis of VO₂ (M) Nanopowders by a Novel Solution-Based Process
p.725

Effect of Fluorine Content on the Electrochemical Properties of PVDF-Derived Carbons for Lithium Ion Battery
p.730

Effect of Poly(vinyl alcohol)/Chitosan Ratio on Electrospun-Nanofiber Morphologies
p.734

Fabrication of Nanomaterial Devices for Field Emission Applications
p.739

Hydrogen Generation from CDS Modified-Titania Nanotube Arrays
p.743

Nanomechanical Properties of Vimentin Intermediate Filament
p.748

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 463-464Effect of Fluorine Content on the Electrochemical...

Effect of Fluorine Content on the Electrochemical Properties of PVDF-Derived Carbons for Lithium Ion Battery

Abstract:

The carbon materials prepared by PVDF carbonization at different temperatures have similar BET surface area and pores volume. The content of fluorine in the carbons decreased with the carbonization temperature from 1.46% (atm %) at 600°C to 0.18 %( atm %) at 1000°C. The first cycle specific capacity and the initial coulombic efficiency decreases with the decrease of fluorine content in the samples. The first cycle discharge capacity decreased from 982 mAh/ g at 600°C to 752 mAh/ g at 1000°C and the initial coulombic efficiency decreased from 31.8% at 600°C to 24% at 1000°C. It is believed that fluorine contained in the carbon materials has a positive effect to improve the electrochemical properties as anode materials for Li-ion batteries.