Journal of Power Sources, volume 218, pages 163-167

Application of lithiated Nafion ionomer film as functional separator for lithium sulfur cells

Zhaoqing Jin 1
Kai Xie 1
Xiaobin Hong 1
Zongqian Hu 1
Xiang Yang Liu 1
1
 
College of Aerospace and Materials Engineering, National University of Defence and Technology, Changsha 410073, China
Publication typeJournal Article
Publication date2012-11-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.2
ISSN03787753
Physical and Theoretical Chemistry
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Abstract
Lithiated Nafion ionomer film is applied as functional separator for Li–S cells. The ionomer electrolyte is composed of the lithiated Nafion ionomer film and liquid electrolyte. The Li-ion conductivity of the ionomer electrolyte is 2.1 × 10 −5 S cm −1 at room temperature. The Li-ion transference number and the elemental sulfur permeability of the ionomer electrolyte shows the polysulfide anions can transport through the ionomer film hardly. The CV result reveals the ionomer electrolyte is electrochemically stable and workable for lithium and sulfur electrodes. The initial discharge capacities of the Li–S cells with ionomer film and with liquid electrolyte are nearly the same. However, the discharge capacity of the Li–S cell with the ionomer film at the 50th cycle is found to be 815 mAh g −1 , and the coulombic efficiencies are above 97% along with cycles, showing an improvement in cycle performance as well as in coulombic efficiency, compared with the Li–S cell with liquid electrolyte of which the discharge capacity is 552 mAh g −1 at the 50th cycles, and the coulombic efficiencies are lower than 97% along with cycles. ► We first applied lithiated Nafion ionomer film for Li–S cell as the separator. ► Polysulfide anions couldn't transport through the ionomer film, while Li-ion could. ► Li–S cell with the ionomer electrolyte shows an improvement in cycle performance. ► The results may offer an alternate idea to improve the performance of Li–S cell.

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GOST Copy
Jin Z. et al. Application of lithiated Nafion ionomer film as functional separator for lithium sulfur cells // Journal of Power Sources. 2012. Vol. 218. pp. 163-167.
GOST all authors (up to 50) Copy
Jin Z., Xie K., Hong X., Hu Z., Liu X. Y. Application of lithiated Nafion ionomer film as functional separator for lithium sulfur cells // Journal of Power Sources. 2012. Vol. 218. pp. 163-167.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.jpowsour.2012.06.100
UR - https://linkinghub.elsevier.com/retrieve/pii/S037877531201110X
TI - Application of lithiated Nafion ionomer film as functional separator for lithium sulfur cells
T2 - Journal of Power Sources
AU - Jin, Zhaoqing
AU - Xie, Kai
AU - Hong, Xiaobin
AU - Hu, Zongqian
AU - Liu, Xiang Yang
PY - 2012
DA - 2012/11/01 00:00:00
PB - Elsevier
SP - 163-167
VL - 218
SN - 0378-7753
ER -
BibTex
Cite this
BibTex Copy
@article{2012_Jin,
author = {Zhaoqing Jin and Kai Xie and Xiaobin Hong and Zongqian Hu and Xiang Yang Liu},
title = {Application of lithiated Nafion ionomer film as functional separator for lithium sulfur cells},
journal = {Journal of Power Sources},
year = {2012},
volume = {218},
publisher = {Elsevier},
month = {nov},
url = {https://linkinghub.elsevier.com/retrieve/pii/S037877531201110X},
pages = {163--167},
doi = {10.1016/j.jpowsour.2012.06.100}
}
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