Journal
JOURNAL OF POWER SOURCES
Volume 278, Issue -, Pages 375-381Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2014.11.047
Keywords
Sodium ion battery; Polymer electrolyte; PEO; Conductivity; NaClO4; TiO2
Funding
- Ministry of Science and Technology (MOST) [103-3113-E-011-001, 101-3113-E-011-002, 101-2923-E-011-001-MY3, 100-2221-E-011-105-MY3]
- Ministry of Economic Affairs (MOEA) [101-EC-17-A-08-S1-183]
- Top University Projects of Ministry of Education (MOE) [100H451401]
Ask authors/readers for more resources
A free-standing transparent film for sodium-ion conduction in PEO-based solid polymer electrolyte (additionally comprising NaClO4 and nano-sized TiO2) has been fabricated for use in Na-ion batteries by using a solution casting technique. The crystallinity of the solid polymer electrolyte and the interactions between PEO and the Na-ions is characterized by X-ray diffraction (XRD) and Fourier transformed infrared (FTIR) spectra, which reveals the degree of Na+ ion solvation by PEO oxygen atoms (EO:Na). The ionic conductivities of the films are investigated by impedance analysis from 1 MHz to 1 Hz within the temperature range 303-363 K. A solid polymer electrolyte with anatomic ratio EO:Na = 20 exhibits a maximum ionic conductivity of 1.35 x 10(-4) S cm(-1), which increases to 2.62 x 10(-4) S cm(-1) by the addition of TiO2 (3.4 nm, 5 wt%) at temperature 60 degrees C. The performance of a Na2/3CO2/3Mn1/3O2 half cell with a polymer electrolyte is compared to a similar cell with a liquid electrolyte. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available