RESEARCH

Lithium-Sulfur Batteries

Discharge reactions, polysulfide shuttle effects, charge reactions

click images to enlarge:

K. Hankins, V. Prabhakaran, S. Wi, V. S. V. Shutthanandan, G. E. Johnson, S. Roy, H. Wang, Y. Shao, S. Thevuthasan, P. B. Balbuena, K. T. Mueller, and V. Murugesan Role of Polysulfide Anions in Solid-Electrolyte Interphase Formation at the Lithium Metal Surface in Li–S Batteries,”, J. Phys. Chem. Lett., 12, 38, 9360-9367, (2021).

Lithium (Li) metal battery technology, renowned for its high energy density, faces practical challenges, particularly concerning large volume change and cell swelling. Despite the profound impact of external pressure on cell performance, there is a notable gap in research regarding the interplay between external pressure and the electroplating behaviours of Li+ in large-format pouch cells… View more

Luis E. Camacho-Forero and Perla B. Balbuena, “Elucidating Interfacial Phenomena between Solid-State Electrolytes and the Sulfur-Cathode of Lithium-Sulfur Batteries,” Mater., 32, 1, 360-373, (2020).

Lithium (Li) metal battery technology, renowned for its high energy density, faces practical challenges, particularly concerning large volume change and cell swelling. Despite the profound impact of external pressure on cell performance, there is a notable gap in research regarding the interplay between external pressure and the electroplating behaviours of Li+ in large-format pouch cells… View more 

Saul Perez Beltran and Perla B. Balbuena, First-Principles Explorations of the Electrochemical Lithiation Dynamics of a Multilayer Graphene Nanosheet-based Sulfur-Carbon Composite, J. Mater. Chem. A, 6, 18084-18094, (2018).

Graphitized-polymer-based sulfur cathodes have emerged as alternative cathode materials that are able to overcome many of the technical challenges that currently hinder lithium–sulfur (Li–S) batteries from their use in long-term high-energy applications. However, even though graphitized-polymer-based sulfur cathodes can be synthesized through a facile thermal procedure, and there is evidence of sulfur–carbon chemical bonding… View more