Oligoanilines as a suppressor of polysulfide shuttling in lithium-sulfur batteries

Chi Hao Chang; Sheng Heng Chung; Pauline Han; Arumugam Manthiram

doi:10.1039/c7mh00510e

Oligoanilines as a suppressor of polysulfide shuttling in lithium-sulfur batteries

Chi Hao Chang, Sheng Heng Chung, Pauline Han, Arumugam Manthiram

Department of Materials Science and Engineering

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

26 Citations (Scopus)

Abstract

The migration of small polysulfide (LiPS) chains through the porous polymeric separators seriously jeopardizes the cycle life and energy density of lithium-sulfur (Li-S) batteries. Herein, we present a new concept in which an organic oligoaniline, amine-capped aniline trimer (ACAT), serves as an effective suppressor of the LiPS migration in Li-S cells. The strong interaction between LiPS and ACAT facilitates the formation of bulky ACAT-LiPS complexes (organoLiPS complexes), which are then size-selectively sieved by the porous polymeric separators employed in Li-S cells. Thus, the addition of ACAT significantly ameliorates the electrochemical performances of Li-S batteries due to suppressed LiPS migration. This new concept offers a viable strategy to achieve practically viable Li-S batteries.

Original language	English
Pages (from-to)	908-914
Number of pages	7
Journal	Materials Horizons
Volume	4
Issue number	5
DOIs	https://doi.org/10.1039/c7mh00510e
Publication status	Published - 2017 Sept 1

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Process Chemistry and Technology
Electrical and Electronic Engineering

Access to Document

10.1039/c7mh00510e

Cite this

@article{067b48e7182d47f4a89ecbfe3c57d9e0,

title = "Oligoanilines as a suppressor of polysulfide shuttling in lithium-sulfur batteries",

abstract = "The migration of small polysulfide (LiPS) chains through the porous polymeric separators seriously jeopardizes the cycle life and energy density of lithium-sulfur (Li-S) batteries. Herein, we present a new concept in which an organic oligoaniline, amine-capped aniline trimer (ACAT), serves as an effective suppressor of the LiPS migration in Li-S cells. The strong interaction between LiPS and ACAT facilitates the formation of bulky ACAT-LiPS complexes (organoLiPS complexes), which are then size-selectively sieved by the porous polymeric separators employed in Li-S cells. Thus, the addition of ACAT significantly ameliorates the electrochemical performances of Li-S batteries due to suppressed LiPS migration. This new concept offers a viable strategy to achieve practically viable Li-S batteries.",

author = "Chang, {Chi Hao} and Chung, {Sheng Heng} and Pauline Han and Arumugam Manthiram",

note = "Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

year = "2017",

month = sep,

day = "1",

doi = "10.1039/c7mh00510e",

language = "English",

volume = "4",

pages = "908--914",

journal = "Materials Horizons",

issn = "2051-6347",

publisher = "Royal Society of Chemistry",

number = "5",

}

TY - JOUR

T1 - Oligoanilines as a suppressor of polysulfide shuttling in lithium-sulfur batteries

AU - Chang, Chi Hao

AU - Chung, Sheng Heng

AU - Han, Pauline

AU - Manthiram, Arumugam

PY - 2017/9/1

Y1 - 2017/9/1

N2 - The migration of small polysulfide (LiPS) chains through the porous polymeric separators seriously jeopardizes the cycle life and energy density of lithium-sulfur (Li-S) batteries. Herein, we present a new concept in which an organic oligoaniline, amine-capped aniline trimer (ACAT), serves as an effective suppressor of the LiPS migration in Li-S cells. The strong interaction between LiPS and ACAT facilitates the formation of bulky ACAT-LiPS complexes (organoLiPS complexes), which are then size-selectively sieved by the porous polymeric separators employed in Li-S cells. Thus, the addition of ACAT significantly ameliorates the electrochemical performances of Li-S batteries due to suppressed LiPS migration. This new concept offers a viable strategy to achieve practically viable Li-S batteries.

AB - The migration of small polysulfide (LiPS) chains through the porous polymeric separators seriously jeopardizes the cycle life and energy density of lithium-sulfur (Li-S) batteries. Herein, we present a new concept in which an organic oligoaniline, amine-capped aniline trimer (ACAT), serves as an effective suppressor of the LiPS migration in Li-S cells. The strong interaction between LiPS and ACAT facilitates the formation of bulky ACAT-LiPS complexes (organoLiPS complexes), which are then size-selectively sieved by the porous polymeric separators employed in Li-S cells. Thus, the addition of ACAT significantly ameliorates the electrochemical performances of Li-S batteries due to suppressed LiPS migration. This new concept offers a viable strategy to achieve practically viable Li-S batteries.

UR - http://www.scopus.com/inward/record.url?scp=85028684415&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85028684415&partnerID=8YFLogxK

U2 - 10.1039/c7mh00510e

DO - 10.1039/c7mh00510e

M3 - Article

AN - SCOPUS:85028684415

SN - 2051-6347

VL - 4

SP - 908

EP - 914

JO - Materials Horizons

JF - Materials Horizons

IS - 5

ER -

Oligoanilines as a suppressor of polysulfide shuttling in lithium-sulfur batteries

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this