Metal-organic frameworks based membrane as a permselective separator for lithium-sulfur batteries

Shruti Suriyakumar; M. Kanagaraj; Murugavel Kathiresan; N. Angulakshmi; Sabu Thomas; A. Manuel Stephan

doi:10.1016/j.electacta.2018.01.155

Metal-organic frameworks based membrane as a permselective separator for lithium-sulfur batteries

Shruti Suriyakumar, M. Kanagaraj, Murugavel Kathiresan, N. Angulakshmi, Sabu Thomas, A. Manuel Stephan

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

89 Citations (Scopus)

Abstract

Although lithium-sulfur batteries possess five-fold higher theoretical capacity than the state-of-the-art lithium-ion batteries, the migration of polysulfide between the electrodes remains as a problem area. In order to overcome this issue, numerous strategies have been adopted. Herein, we introduce a novel 1,3,5 benzene tricarboxylate-manganese (Mn-BTC) metal organic framework (MOF) coated-Celgard (2320) separator which acts as permselective in a Li-S cell. The Li-S cell with coated membrane exhibited higher discharge capacity than the uncoated one. The diffusion of polysulfides is successfully blocked by the separator due to the repulsive ionic forces provided by the COO– that is present in the periphery of Mn-BTC MOF which was confirmed by XPS and XRD analyses.

Original language	English
Pages (from-to)	151-159
Number of pages	9
Journal	Electrochimica Acta
Volume	265
DOIs	https://doi.org/10.1016/j.electacta.2018.01.155
Publication status	Published - 1 Mar 2018
Externally published	Yes

Keywords

Charge-discharge studies
Lithium-sulfur batteries
Metal organic frame works
Permselective
Polysulfides

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.electacta.2018.01.155

Cite this

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title = "Metal-organic frameworks based membrane as a permselective separator for lithium-sulfur batteries",

abstract = "Although lithium-sulfur batteries possess five-fold higher theoretical capacity than the state-of-the-art lithium-ion batteries, the migration of polysulfide between the electrodes remains as a problem area. In order to overcome this issue, numerous strategies have been adopted. Herein, we introduce a novel 1,3,5 benzene tricarboxylate-manganese (Mn-BTC) metal organic framework (MOF) coated-Celgard (2320) separator which acts as permselective in a Li-S cell. The Li-S cell with coated membrane exhibited higher discharge capacity than the uncoated one. The diffusion of polysulfides is successfully blocked by the separator due to the repulsive ionic forces provided by the COO– that is present in the periphery of Mn-BTC MOF which was confirmed by XPS and XRD analyses.",

keywords = "Charge-discharge studies, Lithium-sulfur batteries, Metal organic frame works, Permselective, Polysulfides",

author = "Shruti Suriyakumar and M. Kanagaraj and Murugavel Kathiresan and N. Angulakshmi and Sabu Thomas and Stephan, \{A. Manuel\}",

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doi = "10.1016/j.electacta.2018.01.155",

language = "English",

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T1 - Metal-organic frameworks based membrane as a permselective separator for lithium-sulfur batteries

AU - Suriyakumar, Shruti

AU - Kanagaraj, M.

AU - Kathiresan, Murugavel

AU - Angulakshmi, N.

AU - Thomas, Sabu

AU - Stephan, A. Manuel

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Although lithium-sulfur batteries possess five-fold higher theoretical capacity than the state-of-the-art lithium-ion batteries, the migration of polysulfide between the electrodes remains as a problem area. In order to overcome this issue, numerous strategies have been adopted. Herein, we introduce a novel 1,3,5 benzene tricarboxylate-manganese (Mn-BTC) metal organic framework (MOF) coated-Celgard (2320) separator which acts as permselective in a Li-S cell. The Li-S cell with coated membrane exhibited higher discharge capacity than the uncoated one. The diffusion of polysulfides is successfully blocked by the separator due to the repulsive ionic forces provided by the COO– that is present in the periphery of Mn-BTC MOF which was confirmed by XPS and XRD analyses.

AB - Although lithium-sulfur batteries possess five-fold higher theoretical capacity than the state-of-the-art lithium-ion batteries, the migration of polysulfide between the electrodes remains as a problem area. In order to overcome this issue, numerous strategies have been adopted. Herein, we introduce a novel 1,3,5 benzene tricarboxylate-manganese (Mn-BTC) metal organic framework (MOF) coated-Celgard (2320) separator which acts as permselective in a Li-S cell. The Li-S cell with coated membrane exhibited higher discharge capacity than the uncoated one. The diffusion of polysulfides is successfully blocked by the separator due to the repulsive ionic forces provided by the COO– that is present in the periphery of Mn-BTC MOF which was confirmed by XPS and XRD analyses.

KW - Charge-discharge studies

KW - Lithium-sulfur batteries

KW - Metal organic frame works

KW - Permselective

KW - Polysulfides

UR - https://www.scopus.com/pages/publications/85041475333

U2 - 10.1016/j.electacta.2018.01.155

DO - 10.1016/j.electacta.2018.01.155

M3 - Article

AN - SCOPUS:85041475333

SN - 0013-4686

VL - 265

SP - 151

EP - 159

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Metal-organic frameworks based membrane as a permselective separator for lithium-sulfur batteries

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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