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Title: Self-Formed Hybrid Interphase Layer on Lithium Metal for High-Performance Lithium–Sulfur Batteries

Journal Article · · ACS Nano

Lithium–sulfur (Li–S) batteries are promising candidates for high-energy storage devices due to high theoretical capacities of both the sulfur cathode and lithium (Li) metal anode. Considerable efforts have been devoted to improving sulfur cathodes. However, issues associated with Li anodes, such as low Coulombic efficiency (CE) and growth of Li dendrites, remain unsolved due to unstable solid-electrolyte interphase (SEI) and lead to poor capacity retention and a short cycling life of Li–S batteries. In this paper, we demonstrate a facile and effective approach to fabricate a flexible and robust hybrid SEI layer through co-deposition of aromatic-based organosulfides and inorganic Li salts using poly(sulfur-random-1,3-diisopropenylbenzene) as an additive in an electrolyte. The aromatic-based organic components with planar backbone conformation and π–π interaction in the SEI layers can improve the toughness and flexibility to promote stable and high efficient Li deposition/dissolution. The as-formed durable SEI layer can inhibit dendritic Li growth, enhance Li deposition/dissolution CE (99.1% over 420 cycles), and in turn enable Li–S batteries with good cycling stability (1000 cycles) and slow capacity decay. Finally, this work demonstrates a route to address the issues associated with Li metal anodes and promote the development of high-energy rechargeable Li metal batteries.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); National Science Foundation (NSF)
Grant/Contract Number:
EE0007795; CMMI-1435766
OSTI ID:
1435963
Alternate ID(s):
OSTI ID: 1430273
Report Number(s):
DOE-PENNSTATE-0007795; PII:974
Journal Information:
ACS Nano, Vol. 12, Issue 2; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 131 works
Citation information provided by
Web of Science

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Cited By (22)

The Radical Pathway Based on a Lithium‐Metal‐Compatible High‐Dielectric Electrolyte for Lithium–Sulfur Batteries journal December 2018
Manipulating Polysulfide Conversion with Strongly Coupled Fe 3 O 4 and Nitrogen Doped Carbon for Stable and High Capacity Lithium-Sulfur Batteries journal November 2018
Uniform Lithium Nucleation Guided by Atomically Dispersed Lithiophilic CoN x Sites for Safe Lithium Metal Batteries journal November 2018
Anode Interface Engineering and Architecture Design for High‐Performance Lithium–Sulfur Batteries journal January 2019
The Challenge of Lithium Metal Anodes for Practical Applications journal April 2019
Sulfur-Rich Polymers with Functional Linkers for High-Capacity and Fast-Charging Lithium-Sulfur Batteries journal October 2018
Stabilizing cathodes of lithium–sulfur batteries by the chemical binding of sulfur and their discharge products to carbon nanofibers journal January 2019
A Lithium-Sulfur Cell Based on Reversible Lithium Deposition from a Li 2 S Cathode Host onto a Hostless-Anode Substrate journal July 2018
Dithiothreitol-assisted polysulfide reduction in the interlayer of lithium–sulfur batteries: a first-principles study journal January 2019
The Radical Pathway Based on a Lithium‐Metal‐Compatible High‐Dielectric Electrolyte for Lithium–Sulfur Batteries journal December 2018
Self‐Formed Protection Layer on a 3D Lithium Metal Anode for Ultrastable Lithium–Sulfur Batteries journal April 2019
A compact inorganic layer for robust anode protection in lithium‐sulfur batteries journal November 2019
Stabilizing Lithium Plating by a Biphasic Surface Layer Formed In Situ journal July 2018
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In situ formed polymer gel electrolytes for lithium batteries with inherent thermal shutdown safety features journal January 2019
Electrokinetic Phenomena Enhanced Lithium‐Ion Transport in Leaky Film for Stable Lithium Metal Anodes journal April 2019
Trifluoroacetate induced small-grained CsPbBr3 perovskite films result in efficient and stable light-emitting devices journal February 2019
Long Cycle Life Lithium Metal Batteries Enabled with Upright Lithium Anode journal February 2019
“Pea-pod-like” nitrogen-doped hollow porous carbon cathode hosts decorated with polar titanium dioxide nanocrystals as efficient polysulfide reservoirs for advanced lithium–sulfur batteries journal January 2018
Current Status and Future Prospects of Metal–Sulfur Batteries journal May 2019
Stabilizing Lithium Plating by a Biphasic Surface Layer Formed In Situ journal July 2018
Trifluoroacetate induced small-grained CsPbBr3 perovskite films result in efficient and stable light-emitting devices journal February 2019

Figures / Tables (6)