The effect of interactions and reduction products of LiNO3, the anti-shuttle agent, in Li-S battery systems

Ariel Rosenman, Ran Elazari, Gregory Salitra, Elena Markevich, Doron Aurbach, Arnd Garsuch

Research output: Contribution to journalArticlepeer-review

160 Scopus citations


Sulfur cathodes have excellent theoretical properties for use as positive electrodes in rechargeable lithium batteries. However they suffer from an internal redox shuttle process which limit their capacity because the sulfur reduction products, LixSy species, cannot be fully re-oxidized. In order to overcome this problem, lithium nitrate is commonly used as an additive to the electrolyte solution, suppressing the shuttle phenomena in Li-sulfur batteries.We rigorously studied the electrochemical behavior of LiNO3 in electrolyte solutions and with electrodes relevant to Li-S cells. EQCM UV-Vis and XPS spectroscopies were used in conjunction with standard electrochemical measurements, in order to determine the stability limits of this additive. An irreversible reduction of the nitrate species occurs in Li-S cells resulting in a precipitation of electrolyte solutions decomposition products such as LiF and oxygencontaining polymeric species formed by reactions of the ethereal solutions due to nitrate reduction on the cathode side below 1.9 V vs. Li .We showed that both the reversible capacity and the voltage profile of Li-S cells are significantly improved when the limiting cutoff potentials for the sulfur cathodes is set above the red-ox potential of LiNO3.

Original languageEnglish
Pages (from-to)A470-A473
JournalJournal of the Electrochemical Society
Issue number3
StatePublished - 2015

Bibliographical note

Publisher Copyright:
© 2015 The Electrochemical Society.


Dive into the research topics of 'The effect of interactions and reduction products of LiNO3, the anti-shuttle agent, in Li-S battery systems'. Together they form a unique fingerprint.

Cite this