Electrospun PVDF/PSSLi ionomer films as a functional separator for lithium-sulfur batteries

Yangsen Lin; Rosaiah Pitcheri; Jinghui Zhu; Caiming Jiao; Ya Guo; Jing Li; Yejun Qiu

doi:10.1016/j.jallcom.2019.01.202

Electrospun PVDF/PSSLi ionomer films as a functional separator for lithium-sulfur batteries

Yangsen Lin
, Rosaiah Pitcheri
, Jinghui Zhu
, Caiming Jiao
, Ya Guo
, Jing Li
, Yejun Qiu^*

^*Corresponding author for this work

Harbin Institute of Technology (Shenzhen)

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

A novel polyvinylidene fluoride/poly(4-styrenesulfonic acid) lithium salt (PVDF/PSSLi) composite membrane has been successfully produced by a facile route. This membrane is proven to be effective for depressing polysulfide shuttle in lithium-sulfur battery, leading to higher discharge capacity and better durability in comparison with the commercial PP separator. The Li-S cell with PVDF/PSSLi separator delivers a discharge capacity of 1194 mAh/g with average Coulombic efficiency of 97% at 0.2 C. Especially, the PVDF/PSSLi membrane exhibits excellent cycling performance at 0.5 C, and the corresponding capacity decay is just 0.26% per cycle during 200 cycles, while that of PP separator is 0.43%; moreover, it possesses stable and high Coulombic efficiency of beyond 97% during cycling.

Original language	English
Pages (from-to)	627-633
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	785
DOIs	https://doi.org/10.1016/j.jallcom.2019.01.202
State	Published - 15 May 2019
Externally published	Yes

Keywords

Electrospinning
Exchange membrane
Lithium-sulfur battery
PDVF
Separator

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10.1016/j.jallcom.2019.01.202

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@article{0c1ef2110e444bc8b46093e21a903c5d,

title = "Electrospun PVDF/PSSLi ionomer films as a functional separator for lithium-sulfur batteries",

abstract = "A novel polyvinylidene fluoride/poly(4-styrenesulfonic acid) lithium salt (PVDF/PSSLi) composite membrane has been successfully produced by a facile route. This membrane is proven to be effective for depressing polysulfide shuttle in lithium-sulfur battery, leading to higher discharge capacity and better durability in comparison with the commercial PP separator. The Li-S cell with PVDF/PSSLi separator delivers a discharge capacity of 1194 mAh/g with average Coulombic efficiency of 97\% at 0.2 C. Especially, the PVDF/PSSLi membrane exhibits excellent cycling performance at 0.5 C, and the corresponding capacity decay is just 0.26\% per cycle during 200 cycles, while that of PP separator is 0.43\%; moreover, it possesses stable and high Coulombic efficiency of beyond 97\% during cycling.",

keywords = "Electrospinning, Exchange membrane, Lithium-sulfur battery, PDVF, Separator",

author = "Yangsen Lin and Rosaiah Pitcheri and Jinghui Zhu and Caiming Jiao and Ya Guo and Jing Li and Yejun Qiu",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = may,

day = "15",

doi = "10.1016/j.jallcom.2019.01.202",

language = "英语",

volume = "785",

pages = "627--633",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Electrospun PVDF/PSSLi ionomer films as a functional separator for lithium-sulfur batteries

AU - Lin, Yangsen

AU - Pitcheri, Rosaiah

AU - Zhu, Jinghui

AU - Jiao, Caiming

AU - Guo, Ya

AU - Li, Jing

AU - Qiu, Yejun

PY - 2019/5/15

Y1 - 2019/5/15

N2 - A novel polyvinylidene fluoride/poly(4-styrenesulfonic acid) lithium salt (PVDF/PSSLi) composite membrane has been successfully produced by a facile route. This membrane is proven to be effective for depressing polysulfide shuttle in lithium-sulfur battery, leading to higher discharge capacity and better durability in comparison with the commercial PP separator. The Li-S cell with PVDF/PSSLi separator delivers a discharge capacity of 1194 mAh/g with average Coulombic efficiency of 97% at 0.2 C. Especially, the PVDF/PSSLi membrane exhibits excellent cycling performance at 0.5 C, and the corresponding capacity decay is just 0.26% per cycle during 200 cycles, while that of PP separator is 0.43%; moreover, it possesses stable and high Coulombic efficiency of beyond 97% during cycling.

AB - A novel polyvinylidene fluoride/poly(4-styrenesulfonic acid) lithium salt (PVDF/PSSLi) composite membrane has been successfully produced by a facile route. This membrane is proven to be effective for depressing polysulfide shuttle in lithium-sulfur battery, leading to higher discharge capacity and better durability in comparison with the commercial PP separator. The Li-S cell with PVDF/PSSLi separator delivers a discharge capacity of 1194 mAh/g with average Coulombic efficiency of 97% at 0.2 C. Especially, the PVDF/PSSLi membrane exhibits excellent cycling performance at 0.5 C, and the corresponding capacity decay is just 0.26% per cycle during 200 cycles, while that of PP separator is 0.43%; moreover, it possesses stable and high Coulombic efficiency of beyond 97% during cycling.

KW - Electrospinning

KW - Exchange membrane

KW - Lithium-sulfur battery

KW - PDVF

KW - Separator

UR - https://www.scopus.com/pages/publications/85060341845

U2 - 10.1016/j.jallcom.2019.01.202

DO - 10.1016/j.jallcom.2019.01.202

M3 - 文章

AN - SCOPUS:85060341845

SN - 0925-8388

VL - 785

SP - 627

EP - 633

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Electrospun PVDF/PSSLi ionomer films as a functional separator for lithium-sulfur batteries

Abstract

Keywords

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