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Title: Highly flexible, freestanding tandem sulfur cathodes for foldable Li–S batteries with a high areal capacity

Journal Article · · Materials Horizons
DOI: https://doi.org/10.1039/c6mh00426a · OSTI ID:1430181

Li–S batteries with a high theoretical capacity are considered as the most promising candidate to satisfy the increasing demand for batteries with a high areal capacity. However, the low sulfur loading (<2 mg cm-2) and poor flexibility of current Li–S batteries limit their application in establishing foldable Li–S batteries with a high areal capacity. Here, to solve this problem, we employ here a free-standing flexible tandem sulfur cathode with a remarkably high sulfur loading to demonstrate foldable, high-areal-capacity Li–S batteries. The design of the tandem cathode readily increases the sulfur loading and effectively retards the migration of polysulfides. Therefore, the Li–S cell employing the tandem cathode exhibits a high initial areal capacity of 12.3 mA h cm-2 with stable cycling stability even with a high sulfur loading of up to 16 mg cm-2. These tandem cathodes are promising for foldable Li–S cells with a high areal capacity and energy density.

Research Organization:
Univ. of Texas, Austin, TX (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0007218
OSTI ID:
1430181
Alternate ID(s):
OSTI ID: 1429341; OSTI ID: 1487272
Journal Information:
Materials Horizons, Vol. 4, Issue 2; ISSN 2051-6347
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 74 works
Citation information provided by
Web of Science

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Cited By (23)

Progress on the Critical Parameters for Lithium-Sulfur Batteries to be Practically Viable journal May 2018
Phase Inversion Strategy to Flexible Freestanding Electrode: Critical Coupling of Binders and Electrolytes for High Performance Li-S Battery journal June 2018
A Bifunctional Perovskite Promoter for Polysulfide Regulation toward Stable Lithium-Sulfur Batteries journal November 2017
Current Status and Future Prospects of Metal–Sulfur Batteries journal May 2019
Promoting the Transformation of Li 2 S 2 to Li 2 S: Significantly Increasing Utilization of Active Materials for High‐Sulfur‐Loading Li–S Batteries journal April 2019
Development of High-Voltage Aqueous Electrochemical Energy Storage Devices journal July 2017
SnS 2 /SnO 2 Heterostructures towards Enhanced Electrochemical Performance of Lithium–Sulfur Batteries journal March 2019
Issues and Challenges Facing Flexible Lithium-Ion Batteries for Practical Application journal December 2017
Pyrrolic‐Type Nitrogen‐Doped Hierarchical Macro/Mesoporous Carbon as a Bifunctional Host for High‐Performance Thick Cathodes for Lithium‐Sulfur Batteries journal March 2019
Electrochemical performance of Sb2S3/CNT free-standing flexible anode for Li-ion batteries journal January 2019
Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application journal June 2018
High-strength graphene composite films by molecular level couplings for flexible supercapacitors with high volumetric capacitance journal January 2017
Nanomat Li–S batteries based on all-fibrous cathode/separator assemblies and reinforced Li metal anodes: towards ultrahigh energy density and flexibility journal January 2019
Chaotic printing: using chaos to fabricate densely packed micro- and nanostructures at high resolution and speed journal January 2018
Effective strategies for long-cycle life lithium–sulfur batteries journal January 2018
Electrostatic trapping of polysulfides enabled by imidazolium-based ionic polymers for high-energy-density lithium–sulfur batteries journal January 2018
Multi-functional nanowall arrays with unrestricted Li + transport channels and an integrated conductive network for high-areal-capacity Li–S batteries journal January 2018
Manganese cluster-based MOF as efficient polysulfide-trapping platform for high-performance lithium–sulfur batteries journal January 2019
Electrospun nanostructures for conversion type cathode (S, Se) based lithium and sodium batteries journal January 2019
Inhibition of polysulfide diffusion in lithium–sulfur batteries: mechanism and improvement strategies journal January 2019
Preparation of sulfur micro-particles suitable for lithium sulfur batteries using sulfur vapor deposition journal August 2019
Phase Inversion Strategy to Flexible Freestanding Electrodes: Critical Coupling of Binders and Electrolytes for High Performance Li-S Battery journal May 2019
Phase Inversion Strategy to Flexible Freestanding Electrodes: Critical Coupling of Binders and Electrolytes for High Performance Li-S Battery journal September 2019

Figures / Tables (8)