gamma-Fe2O3 nanoparticles encapsulated in polypyrrole for quasi-solid-state lithium batteries
Artikel i vetenskaplig tidskrift, 2014

Nano-sized gamma-Fe2O3 was prepared by a minor modification method in combination with high energy ball milling, and a core-shell structure was designed using polypyrrole (PPy) by chemical polymerization. The structure and morphology of core-shell gamma-Fe2O3-PPy were investigated by XRD, FT-IR, SEM, and TEM. For solid-state batteries, PPy-Fe2O3 cells were fabricated with a gel polymer electrolyte prepared by an electrospinning process. The charge and discharge gravimetric capacities of all-solid-state batteries at the first cycle are 400 and 421 mA h g(-1) and 220 and 221 mA h g(-1) for 0.1 and 1 C-rates, respectively, which correspond to 760 and 800 mA h cm(-3) and 418 and 420 mA h cm(-3) of volumetric capacity.

RECHARGEABLE BATTERY

ELECTROCHEMICAL PROPERTIES

INSERTION

CATHODE MATERIALS

POLYMER ELECTROLYTES

ALPHA-FE2O3

ION BATTERIES

SURFACE

PERFORMANCE

POLYANILINE

Författare

Jae-Kwang Kim

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Luis Aguilera Medina

Chalmers, Teknisk fysik, Kondenserade materiens fysik

F. Croce

University of G. d'Annunzio Chieti and Pescara

J. H. Ahn

Gyeongsang National University

Journal of Materials Chemistry A

2050-7488 (ISSN)

Vol. 2 3551-3556

Ämneskategorier

Fysik

DOI

10.1039/c3ta14192f