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Title: Stabilizing Li–S Battery Through Multilayer Encapsulation of Sulfur

Journal Article · · Advanced Energy Materials
ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [2]
  1. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
  2. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA, Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA

Abstract Advancements in portable electronic devices and electric powered transportation has drawn more attention to high energy density batteries, especially lithium–sulfur batteries due to the low cost of sulfur and its high energy density. However, the lithium–sulfur battery is still quite far from commercialization mostly because of incompatibility between all major components of the battery—the cathode, anode, and electrolyte. Here a methodology is demonstrated that shows promise in significantly improving battery stability by multilayer encapsulation of sulfur particles, while using conventional electrolytes, which allows a long cycle life and an improved Coulombic efficiency battery at low electrolyte feeding. The multilayer encapsulated sulfur battery demonstrates a Coulombic efficiency as high as 98%, when a binder‐free electrode is used. It is also shown that the all‐out self‐discharge of the cell after 168 h can be reduced from 34% in the regular sulfur battery to less than 9% in the battery with the multilayer encapsulated sulfur electrode.

Sponsoring Organization:
USDOE
OSTI ID:
1481933
Journal Information:
Advanced Energy Materials, Journal Name: Advanced Energy Materials Vol. 9 Journal Issue: 1; ISSN 1614-6832
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 62 works
Citation information provided by
Web of Science

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