Effects of the Pd3Co nanoparticles-additive on the redox shuttle reaction in rechargeable Li-S batteries

Jee Ho Yom, Sung Man Cho, Sun Woo Hwang, Wooyoung Yoon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A lithium-sulfur (Li-S) battery system with bimetallic electrode additive, which limit the dissolution of intermediate lithium polysulfides, is studied. Palladium-cobalt (Pd3Co) nanoparticles are successfully employed as redox promoters in Li-S cells. These cells show high capacity retention and excellent Coulombic efficiency, which are attributed to the fast charge transfer of Pd3Co. Characterization of the Pd3Co nanoparticles isperformed via high-resolution transmission electron microscopy, fast Fourier transform analysis, energy-dispersive X-ray, and X-ray diffraction. At 0.1 C-rate, the initial discharge and charge capacities of the Pd3Co-sulfur electrodes are 1.24 and 1.36 times higher than those of the bare sulfur electrodes. During the first discharge cycle, the overpotential of the Pd3Co electrode (100 mV) is much lower than that of the bare sulfur cell (190 mV). After 200 cycles at 1.0 C-rate, the Pd3Co-sulfur electrodes deliver a discharge capacity of 544 mAh g-1 a high Coulombic efficiency (99.6%). Moreover, the capacity retention of Pd3Co cells is 83.9%. The inductively coupled plasma-atomic emission spectroscopy and X-ray photoelectron spectroscopy data demonstrate that the Pd3Co nanoparticles can suppress the dissolution of lithium polysulfides and the shuttle effect. These results indicate that the reaction kinetics of the sulfur electrodes is enhanced by the Pd3Co nanoparticles.

Original languageEnglish
Pages (from-to)A2179-A2184
JournalJournal of the Electrochemical Society
Volume163
Issue number10
DOIs
Publication statusPublished - 2016

Fingerprint

lithium sulfur batteries
Sulfur
sulfur
Nanoparticles
nanoparticles
Electrodes
electrodes
Lithium
polysulfides
Polysulfides
lithium
cells
dissolving
Dissolution
Atomic emission spectroscopy
cycles
x rays
Energy dispersive X ray analysis
Palladium
Inductively coupled plasma

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Materials Chemistry
  • Electrochemistry

Cite this

Effects of the Pd3Co nanoparticles-additive on the redox shuttle reaction in rechargeable Li-S batteries. / Yom, Jee Ho; Cho, Sung Man; Hwang, Sun Woo; Yoon, Wooyoung.

In: Journal of the Electrochemical Society, Vol. 163, No. 10, 2016, p. A2179-A2184.

Research output: Contribution to journalArticle

@article{518bbb61623849a6a7eb10a728838c4b,
title = "Effects of the Pd3Co nanoparticles-additive on the redox shuttle reaction in rechargeable Li-S batteries",
abstract = "A lithium-sulfur (Li-S) battery system with bimetallic electrode additive, which limit the dissolution of intermediate lithium polysulfides, is studied. Palladium-cobalt (Pd3Co) nanoparticles are successfully employed as redox promoters in Li-S cells. These cells show high capacity retention and excellent Coulombic efficiency, which are attributed to the fast charge transfer of Pd3Co. Characterization of the Pd3Co nanoparticles isperformed via high-resolution transmission electron microscopy, fast Fourier transform analysis, energy-dispersive X-ray, and X-ray diffraction. At 0.1 C-rate, the initial discharge and charge capacities of the Pd3Co-sulfur electrodes are 1.24 and 1.36 times higher than those of the bare sulfur electrodes. During the first discharge cycle, the overpotential of the Pd3Co electrode (100 mV) is much lower than that of the bare sulfur cell (190 mV). After 200 cycles at 1.0 C-rate, the Pd3Co-sulfur electrodes deliver a discharge capacity of 544 mAh g-1 a high Coulombic efficiency (99.6{\%}). Moreover, the capacity retention of Pd3Co cells is 83.9{\%}. The inductively coupled plasma-atomic emission spectroscopy and X-ray photoelectron spectroscopy data demonstrate that the Pd3Co nanoparticles can suppress the dissolution of lithium polysulfides and the shuttle effect. These results indicate that the reaction kinetics of the sulfur electrodes is enhanced by the Pd3Co nanoparticles.",
author = "Yom, {Jee Ho} and Cho, {Sung Man} and Hwang, {Sun Woo} and Wooyoung Yoon",
year = "2016",
doi = "10.1149/2.0291610jes",
language = "English",
volume = "163",
pages = "A2179--A2184",
journal = "Journal of the Electrochemical Society",
issn = "0013-4651",
publisher = "Electrochemical Society, Inc.",
number = "10",

}

TY - JOUR

T1 - Effects of the Pd3Co nanoparticles-additive on the redox shuttle reaction in rechargeable Li-S batteries

AU - Yom, Jee Ho

AU - Cho, Sung Man

AU - Hwang, Sun Woo

AU - Yoon, Wooyoung

PY - 2016

Y1 - 2016

N2 - A lithium-sulfur (Li-S) battery system with bimetallic electrode additive, which limit the dissolution of intermediate lithium polysulfides, is studied. Palladium-cobalt (Pd3Co) nanoparticles are successfully employed as redox promoters in Li-S cells. These cells show high capacity retention and excellent Coulombic efficiency, which are attributed to the fast charge transfer of Pd3Co. Characterization of the Pd3Co nanoparticles isperformed via high-resolution transmission electron microscopy, fast Fourier transform analysis, energy-dispersive X-ray, and X-ray diffraction. At 0.1 C-rate, the initial discharge and charge capacities of the Pd3Co-sulfur electrodes are 1.24 and 1.36 times higher than those of the bare sulfur electrodes. During the first discharge cycle, the overpotential of the Pd3Co electrode (100 mV) is much lower than that of the bare sulfur cell (190 mV). After 200 cycles at 1.0 C-rate, the Pd3Co-sulfur electrodes deliver a discharge capacity of 544 mAh g-1 a high Coulombic efficiency (99.6%). Moreover, the capacity retention of Pd3Co cells is 83.9%. The inductively coupled plasma-atomic emission spectroscopy and X-ray photoelectron spectroscopy data demonstrate that the Pd3Co nanoparticles can suppress the dissolution of lithium polysulfides and the shuttle effect. These results indicate that the reaction kinetics of the sulfur electrodes is enhanced by the Pd3Co nanoparticles.

AB - A lithium-sulfur (Li-S) battery system with bimetallic electrode additive, which limit the dissolution of intermediate lithium polysulfides, is studied. Palladium-cobalt (Pd3Co) nanoparticles are successfully employed as redox promoters in Li-S cells. These cells show high capacity retention and excellent Coulombic efficiency, which are attributed to the fast charge transfer of Pd3Co. Characterization of the Pd3Co nanoparticles isperformed via high-resolution transmission electron microscopy, fast Fourier transform analysis, energy-dispersive X-ray, and X-ray diffraction. At 0.1 C-rate, the initial discharge and charge capacities of the Pd3Co-sulfur electrodes are 1.24 and 1.36 times higher than those of the bare sulfur electrodes. During the first discharge cycle, the overpotential of the Pd3Co electrode (100 mV) is much lower than that of the bare sulfur cell (190 mV). After 200 cycles at 1.0 C-rate, the Pd3Co-sulfur electrodes deliver a discharge capacity of 544 mAh g-1 a high Coulombic efficiency (99.6%). Moreover, the capacity retention of Pd3Co cells is 83.9%. The inductively coupled plasma-atomic emission spectroscopy and X-ray photoelectron spectroscopy data demonstrate that the Pd3Co nanoparticles can suppress the dissolution of lithium polysulfides and the shuttle effect. These results indicate that the reaction kinetics of the sulfur electrodes is enhanced by the Pd3Co nanoparticles.

UR - http://www.scopus.com/inward/record.url?scp=84987732329&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84987732329&partnerID=8YFLogxK

U2 - 10.1149/2.0291610jes

DO - 10.1149/2.0291610jes

M3 - Article

AN - SCOPUS:84987732329

VL - 163

SP - A2179-A2184

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 10

ER -