Expansion-tolerant architectures for stable cycling of ultrahigh-loading sulfur cathodes in lithium-sulfur batteries

Shaibani M, Mirshekarloo MS, Singh R, Easton CD, Cooray MCD, Eshraghi N, Abendroth T, Doerfler S, Althues H, Kaskel S, Hollenkamp AF, Hill MR, Majumder M (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Science Advances American Association for the Advancement of Science

Book Volume: 6

Article Number: eaay2757

Journal Issue: 1

DOI: 10.1126/sciadv.aay2757

Abstract

Lithium-sulfur batteries can displace lithium-ion by delivering higher specific energy. Presently, however, the superior energy performance fades rapidly when the sulfur electrode is loaded to the required levels—5 to 10 mg cm−2—due to substantial volume change of lithiation/delithiation and the resultant stresses. Inspired by the classical approaches in particle agglomeration theories, we found an approach that places minimum amounts of a high-modulus binder between neighboring particles, leaving increased space for material expansion and ion diffusion. These expansion-tolerant electrodes with loadings up to 15 mg cm−2 yield high gravimetric (>1200 mA·hour g−1) and areal (19 mA·hour cm−2) capacities. The cells are stable for more than 200 cycles, unprecedented in such thick cathodes, with Coulombic efficiency above 99%.

Involved external institutions

Monash University AU Australia (AU) Commonwealth Scientific and Industrial Research Organisation (CSIRO) AU Australia (AU) University of Liège (ULg) / Université de Liège BE Belgium (BE) Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS) / Fraunhofer Institute for Material and Beam Technology DE Germany (DE)

How to cite

APA:

Shaibani, M., Mirshekarloo, M.S., Singh, R., Easton, C.D., Cooray, M.C.D., Eshraghi, N.,... Majumder, M. (2020). Expansion-tolerant architectures for stable cycling of ultrahigh-loading sulfur cathodes in lithium-sulfur batteries. Science Advances, 6(1). https://doi.org/10.1126/sciadv.aay2757

MLA:

Shaibani, Mahdokht, et al. "Expansion-tolerant architectures for stable cycling of ultrahigh-loading sulfur cathodes in lithium-sulfur batteries." Science Advances 6.1 (2020).

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