Self-balancing feature of Lithium-Sulfur batteries

Vaclav Knap, Daniel-Ioan Stroe, Andreas Elkjær Christensen, Karsten Propp, Abbas Fotouhi, Daniel J. Auger, Erik Schaltz, Remus Teodorescu

Research output: Contribution to journalJournal articleResearchpeer-review

8 Citations (Scopus)

Abstract

The Li-S batteries are a prospective battery technology, which despite to its currently remaining drawbacks offers useable performance and interesting features. The polysulfide shuttle mechanism, a characteristic phenomenon for the Li-S batteries, causes a significant self-discharge at higher state-of-charge (SOC) levels, which leads to the energy dissipation of cells with higher charge. In an operation of series-connected Li-S cells, the shuttle mechanism results into a self-balancing effect which is studied here. A model for prediction of the self-balancing effect is proposed in this work and it is validated by experiments. Our results confirm the self-balancing feature of Li-S cells and illustrate their dependence on various conditions such as temperature, charging limits and idling time at high SOC.
Original languageEnglish
JournalJournal of Power Sources
Volume372
Pages (from-to)245-251
Number of pages7
ISSN0378-7753
DOIs
Publication statusPublished - Dec 2017

Keywords

  • Inherent balancing
  • Lithium-Sulfur battery
  • Self-discharge
  • Series-connected batteries

Fingerprint

Dive into the research topics of 'Self-balancing feature of Lithium-Sulfur batteries'. Together they form a unique fingerprint.

Cite this