A perspective on li/s battery design: Modeling and development approaches

Chase McCreary, Yuhui An, Sun Ung Kim, Yoon Hwa

Research output: Contribution to journalReview articlepeer-review

Abstract

Lithium/sulfur (Li/S) cells that offer an ultrahigh theoretical specific energy of 2600 Wh/kg are considered one of the most promising next-generation rechargeable battery systems for the electrification of transportation. However, the commercialization of Li/S cells remains challenging, despite the recent advancements in materials development for sulfur electrodes and electrolytes, due to several critical issues such as the insufficient obtainable specific energy and relatively poor cyclability. This review aims to introduce electrode manufacturing and modeling methodologies and the current issues to be overcome. The obtainable specific energy values of Li/S pouch cells are calculated with respect to various parameters (e.g., sulfur mass loading, sulfur content, sulfur utilization, electrolyte-volume-to-sulfur-weight ratio, and electrode porosity) to demonstrate the design requirements for achieving a high specific energy of >300 Wh/kg. Finally, the prospects for rational modeling and manufacturing strategies are discussed, to establish a new design standard for Li/S batteries.

Original languageEnglish (US)
Article number82
JournalBatteries
Volume7
Issue number4
DOIs
StatePublished - Dec 2021

Keywords

  • Computational modeling
  • Electrolyte to sulfur ratio
  • High specific energy
  • Lithium/sulfur cells
  • Sulfur electrode

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrochemistry
  • Electrical and Electronic Engineering

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