Li2S cathode modified with polyvinylpyrrolidone and mechanical milling with carbon

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Polyvinylpyrrolidone (PVP) is used with polyethylene oxide (PEO) as a mixed binder for mechanically milled Li2S. PVP demonstrates its advantage in terms of increasing the capacity of Li2S, but boosts the potential barrier at the beginning of the first charge. It is also revealed that PVP retards the charge-transfer kinetics of Li2S. In Li2S-C prepared by mechanical milling, carbon compensates for the electrochemical insulation of the PVP binder and improves the cycle stability. As a result, the Li2S-C-PVP electrode with 60 wt% Li2S content displays a low potential barrier at the onset of charge and a stable capacity of about 460 mAh g-1 at 0.1 C.

Original languageEnglish
Pages (from-to)1136-1141
Number of pages6
JournalJournal of Power Sources
Volume273
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Povidone
Binders
Cathodes
Carbon
cathodes
carbon
Polyethylene oxides
acceleration (physics)
insulation
Charge transfer
Insulation
polyethylenes
charge transfer
cycles
Electrodes
Kinetics
electrodes
oxides
kinetics

Keywords

  • LiS-C
  • Lithium sulfide
  • Mixed binder
  • Polyethylene oxide (PEO)
  • Polyvinylpyrrolidone (PVP)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

@article{f2db79a29a744281a76f1fbc543799a5,
title = "Li2S cathode modified with polyvinylpyrrolidone and mechanical milling with carbon",
abstract = "Polyvinylpyrrolidone (PVP) is used with polyethylene oxide (PEO) as a mixed binder for mechanically milled Li2S. PVP demonstrates its advantage in terms of increasing the capacity of Li2S, but boosts the potential barrier at the beginning of the first charge. It is also revealed that PVP retards the charge-transfer kinetics of Li2S. In Li2S-C prepared by mechanical milling, carbon compensates for the electrochemical insulation of the PVP binder and improves the cycle stability. As a result, the Li2S-C-PVP electrode with 60 wt{\%} Li2S content displays a low potential barrier at the onset of charge and a stable capacity of about 460 mAh g-1 at 0.1 C.",
keywords = "LiS-C, Lithium sulfide, Mixed binder, Polyethylene oxide (PEO), Polyvinylpyrrolidone (PVP)",
author = "Jun Liu and Hiroki Nara and Tokihiko Yokoshima and Toshiyuki Momma and Tetsuya Osaka",
year = "2015",
month = "1",
day = "1",
doi = "10.1016/j.jpowsour.2014.09.179",
language = "English",
volume = "273",
pages = "1136--1141",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

TY - JOUR

T1 - Li2S cathode modified with polyvinylpyrrolidone and mechanical milling with carbon

AU - Liu, Jun

AU - Nara, Hiroki

AU - Yokoshima, Tokihiko

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Polyvinylpyrrolidone (PVP) is used with polyethylene oxide (PEO) as a mixed binder for mechanically milled Li2S. PVP demonstrates its advantage in terms of increasing the capacity of Li2S, but boosts the potential barrier at the beginning of the first charge. It is also revealed that PVP retards the charge-transfer kinetics of Li2S. In Li2S-C prepared by mechanical milling, carbon compensates for the electrochemical insulation of the PVP binder and improves the cycle stability. As a result, the Li2S-C-PVP electrode with 60 wt% Li2S content displays a low potential barrier at the onset of charge and a stable capacity of about 460 mAh g-1 at 0.1 C.

AB - Polyvinylpyrrolidone (PVP) is used with polyethylene oxide (PEO) as a mixed binder for mechanically milled Li2S. PVP demonstrates its advantage in terms of increasing the capacity of Li2S, but boosts the potential barrier at the beginning of the first charge. It is also revealed that PVP retards the charge-transfer kinetics of Li2S. In Li2S-C prepared by mechanical milling, carbon compensates for the electrochemical insulation of the PVP binder and improves the cycle stability. As a result, the Li2S-C-PVP electrode with 60 wt% Li2S content displays a low potential barrier at the onset of charge and a stable capacity of about 460 mAh g-1 at 0.1 C.

KW - LiS-C

KW - Lithium sulfide

KW - Mixed binder

KW - Polyethylene oxide (PEO)

KW - Polyvinylpyrrolidone (PVP)

UR - http://www.scopus.com/inward/record.url?scp=84908179563&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84908179563&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2014.09.179

DO - 10.1016/j.jpowsour.2014.09.179

M3 - Article

VL - 273

SP - 1136

EP - 1141

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -