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Title: Li2S encapsulated by nitrogen-doped carbon for lithium sulfur batteries

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/C4TA04103H· OSTI ID:1237306
 [1];  [2];  [1];  [1];  [1]
  1. Wanger Institute for Sustainable Energy Research, Chicago, IL (United States); Illinois Institute of Technology, Chicago, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Using high-energy ball milling of the Li2S plus carbon black mixture followed by carbonization of pyrrole, we have established a facile approach to synthesize Li2S-plus-C composite particles of average size 400 nm, encapsulated by a nitrogen-doped carbon shell. Such an engineered core–shell structure exhibits an ultrahigh initial discharge specific capacity (1029 mAh/g), reaching 88% of the theoretical capacity (1,166 mAh/g of Li2S) and thus offering the highest utilization of Li2S in the cathode among all of the reported works for the encapsulated Li2S cathodes. This Li2S/C composite core with a nitrogen-doped carbon shell can still retain 652 mAh/g after prolonged 100 cycles. These superior properties are attributed to the nitrogen-doped carbon shell that can improve the conductivity to enhance the utilization of Li2S in the cathode. As a result, fine particle sizes and the presence of carbon black within the Li2S core may also play a role in high utilization of Li2S in the cathode.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1237306
Journal Information:
Journal of Materials Chemistry. A, Vol. 2, Issue 42; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 84 works
Citation information provided by
Web of Science

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Cited By (16)

Solution-Based Chemical Process for Synthesis of Highly Active Li 2 S/Carbon Nanocomposite for Lithium-Sulfur Batteries journal April 2016
Cathode materials for lithium–sulfur batteries: a practical perspective journal January 2017
Stabilizing the Performance of High-Capacity Sulfur Composite Electrodes by a New Gel Polymer Electrolyte Configuration journal August 2017
Progress in Mechanistic Understanding and Characterization Techniques of Li-S Batteries journal May 2015
A Hierarchical Particle-Shell Architecture for Long-Term Cycle Stability of Li 2 S Cathodes journal August 2015
Dodecylamine-Induced Synthesis of a Nitrogen-Doped Carbon Comb for Advanced Lithium-Sulfur Battery Cathodes journal February 2018
An Ultrahigh Capacity Graphite/Li 2 S Battery with Holey-Li 2 S Nanoarchitectures journal May 2018
Gyroidal Porous Carbon Activated with NH 3 or CO 2 as Lithium−Sulfur Battery Cathodes journal April 2018
Li 3 BN 2 as a Transition Metal Free, High Capacity Cathode for Li-ion Batteries journal November 2018
Infiltrated Porous Polymer Sheets as Free-Standing Flexible Lithium-Sulfur Battery Electrodes journal May 2016
Highly Nitridated Graphene-Li 2 S Cathodes with Stable Modulated Cycles journal September 2015
Bifunctional MOF‐Derived Carbon Photonic Crystal Architectures for Advanced Zn–Air and Li–S Batteries: Highly Exposed Graphitic Nitrogen Matters journal July 2017
Nitrogen-Doped Carbon for Red Phosphorous Based Anode Materials for Lithium Ion Batteries journal January 2018
Li 2 S-Based Solid Solutions as Positive Electrodes with Full Utilization and Superlong Cycle Life in All-Solid-State Li/S Batteries journal May 2017
The adsorption effect of freestanding SiO x -decorated stabilized polyacrylonitrile interlayers in lithium–sulfur batteries journal January 2019
Enhancement in Electrochemical Performance of Lithium‐Sulfur Cells through Sulfur Encapsulation in Hollow Carbon Nanospheres Coated with Ultra‐Thin Aluminum Fluoride Layer journal November 2019