A Hierarchical Three-dimensional Porous Laser Scribed Graphene Film for Suppressing Polysulfide Shuttling in Lithium-Sulfur Batteries

Eman Alhajji; Wenxi Wang; Wenli Zhang; Husam N. Alshareef

doi:10.1021/acsami.0c01135

A Hierarchical Three-dimensional Porous Laser Scribed Graphene Film for Suppressing Polysulfide Shuttling in Lithium-Sulfur Batteries

Eman Alhajji, Wenxi Wang, Wenli Zhang, Husam N. Alshareef

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

43 Scopus citations

Abstract

Lithium-sulfur (Li-S) battery is a promising next-generation rechargeable battery with high energy density. Given the outstanding capacities of sulfur (1675 mAh g−1) and lithium metal (3861 mAh g−1), Li-S battery theoretically delivers an ultra-high energy density of 2567 Wh kg−1. However, this energy density cannot be realized due to several factors, particularly the shuttling of polysulfide intermediates between the cathode and anode, which causes serious degradation of capacity and cycling stability of a Li-S battery. In this work, a simple and scalable route was employed to construct a free-standing laser scribed graphene (LSG) interlayer which effectively suppresses the polysulfide shuttling in Li-S batteries. Thus, a high specific capacity (1160 mAhg-1) with excellent cycling stability (80.4% capacity retention after 100 cycles) has been achieved due to the unique structure of hierarchical three-dimensional pores in the free-standing LSG.

Original language	English (US)
Pages (from-to)	18833-18839
Number of pages	7
Journal	ACS Applied Materials & Interfaces
Volume	12
Issue number	16
DOIs	https://doi.org/10.1021/acsami.0c01135
State	Published - Apr 1 2020

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was funded by the King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia. The schematic illustration, in Figure 1 as well as in the Table of Contents Graphic, was implemented by Ebtehal Alzuwaid.

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https://repository.kaust.edu.sa/bitstream/10754/662475/1/_Hierchial.pdf

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title = "A Hierarchical Three-dimensional Porous Laser Scribed Graphene Film for Suppressing Polysulfide Shuttling in Lithium-Sulfur Batteries",

abstract = "Lithium-sulfur (Li-S) battery is a promising next-generation rechargeable battery with high energy density. Given the outstanding capacities of sulfur (1675 mAh g−1) and lithium metal (3861 mAh g−1), Li-S battery theoretically delivers an ultra-high energy density of 2567 Wh kg−1. However, this energy density cannot be realized due to several factors, particularly the shuttling of polysulfide intermediates between the cathode and anode, which causes serious degradation of capacity and cycling stability of a Li-S battery. In this work, a simple and scalable route was employed to construct a free-standing laser scribed graphene (LSG) interlayer which effectively suppresses the polysulfide shuttling in Li-S batteries. Thus, a high specific capacity (1160 mAhg-1) with excellent cycling stability (80.4% capacity retention after 100 cycles) has been achieved due to the unique structure of hierarchical three-dimensional pores in the free-standing LSG.",

author = "Eman Alhajji and Wenxi Wang and Wenli Zhang and Alshareef, {Husam N.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was funded by the King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia. The schematic illustration, in Figure 1 as well as in the Table of Contents Graphic, was implemented by Ebtehal Alzuwaid.",

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AU - Alhajji, Eman

AU - Wang, Wenxi

AU - Zhang, Wenli

AU - Alshareef, Husam N.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was funded by the King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia. The schematic illustration, in Figure 1 as well as in the Table of Contents Graphic, was implemented by Ebtehal Alzuwaid.

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Lithium-sulfur (Li-S) battery is a promising next-generation rechargeable battery with high energy density. Given the outstanding capacities of sulfur (1675 mAh g−1) and lithium metal (3861 mAh g−1), Li-S battery theoretically delivers an ultra-high energy density of 2567 Wh kg−1. However, this energy density cannot be realized due to several factors, particularly the shuttling of polysulfide intermediates between the cathode and anode, which causes serious degradation of capacity and cycling stability of a Li-S battery. In this work, a simple and scalable route was employed to construct a free-standing laser scribed graphene (LSG) interlayer which effectively suppresses the polysulfide shuttling in Li-S batteries. Thus, a high specific capacity (1160 mAhg-1) with excellent cycling stability (80.4% capacity retention after 100 cycles) has been achieved due to the unique structure of hierarchical three-dimensional pores in the free-standing LSG.

AB - Lithium-sulfur (Li-S) battery is a promising next-generation rechargeable battery with high energy density. Given the outstanding capacities of sulfur (1675 mAh g−1) and lithium metal (3861 mAh g−1), Li-S battery theoretically delivers an ultra-high energy density of 2567 Wh kg−1. However, this energy density cannot be realized due to several factors, particularly the shuttling of polysulfide intermediates between the cathode and anode, which causes serious degradation of capacity and cycling stability of a Li-S battery. In this work, a simple and scalable route was employed to construct a free-standing laser scribed graphene (LSG) interlayer which effectively suppresses the polysulfide shuttling in Li-S batteries. Thus, a high specific capacity (1160 mAhg-1) with excellent cycling stability (80.4% capacity retention after 100 cycles) has been achieved due to the unique structure of hierarchical three-dimensional pores in the free-standing LSG.

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A Hierarchical Three-dimensional Porous Laser Scribed Graphene Film for Suppressing Polysulfide Shuttling in Lithium-Sulfur Batteries

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