TITLE:
Improvement of the Cycle Performance of LiNi0.5Mn1.5O4 Cathode Active Materials by In-Situ Coating with Poly(3,4-Ethylenedioxythiophene)
AUTHORS:
Jinfeng Liu, Jing Xu
KEYWORDS:
Lithium-Ion Battery LiNi0.5Mn1.5O4PEDOT In-Situ Coating
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.5 No.12,
November
21,
2017
ABSTRACT: LiNi0.5Mn1.5O4 (LNMO)/poly(3,4-ethylenedioxythiophene) (PEDOT) composite cathode materials were prepared through in-situ polymerization of thiophene monomer (EDOT), with ammonium persulphate (APS) as oxidizing agent, p-toluenesulfonic acid (PTSA) as dopant. The morphology, amount of PEDOT coating, electrochemical properties of LNMO/PEDOT were characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and galvanostatic charge and discharge tests. The results show that the composite materials show better cycle performance than bare LNMO.