Research of Properties on Li-Ion Batteries Based on a Polypyrrole Derivative Bearing TEMPO as a Cathode Material

Li Huan Xu; Fang Yang; Chang Su; Cheng Zhang

doi:10.4028/www.scientific.net/AMR.936.447

Paper Titles

Preparation and Characterization of Polyacetylene/Expanded Graphite Composites
p.424

Preparation and Mechanics Properties of the EP/SiO₂ Nanocomposites
p.429

Effects on Characteristics of the SiO₂-to-Na₂O Ratio on Nano-SiO₂ Metakaolin-Based Geopolymers
p.434

Microstructures of ZnO Electrospun Nanofibers on AZO Glass
p.439

Research of Properties on Li-Ion Batteries Based on a Polypyrrole Derivative Bearing TEMPO as a Cathode Material
p.447

Nanostructured Morphology of Spinel LiMn₂O₄ Oxide under Microwave Heating
p.452

Effect of SnO₂ Particle Size on Properties of Ag-SnO₂ Electrical Contact Materials Prepared by the Reductive Precipitation Method
p.459

Electrochemical Investigation of La_0.2Sr_0.8TiO_3+δ-Ce_0.8Sm_0.2O_2-δComposite Cathode for the Direct High Temperature Steam Electrolysis
p.464

Highly Hydroxylated Graphite Felts Used as Electrodes for a Vanadium Redox Flow Battery
p.471

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 936Research of Properties on Li-Ion Batteries Based...

Research of Properties on Li-Ion Batteries Based on a Polypyrrole Derivative Bearing TEMPO as a Cathode Material

Abstract:

4-(3-(Pyrrol-1-yl) butyric acid base)-2,2,6,6-tetramethylpiperidin (Py-B-TEMPO) was synthesized by etherification reaction of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-yloxy. And the polymer of its monomer was prepared by chemical oxidative polymerization and the chemical structure and battery performance of the prepared materials were characterized comparably by Mass spectrometry,¹H NMR, FT-IR spectra and galvanostatic charge-discharge testing using simulant lithium ion half-cell method, respectively. The results shows that the introduction of the TEMPO group to the pyrrole could prevent the polymer from agglomeration and optimize the particle morphology of the resulting polymers, all of which made it demonstrate a significantly improved specific capacity of 86.5 mAh·g^-1 (99% of the theoretical capacity) compared with PPy (21.7 mAh·g^-1). Moreover, it gives an obvious voltage plateau of nearly 3.5 V which is comparable to the redox potential of TEMPO.