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Lee JH, Kang J, Kim SW, et al. Effective Suppression of the Polysulfide Shuttle Effect in Lithium-Sulfur Batteries by Implementing rGO-PEDOT:PSS-Coated Separators via Air-Controlled Electrospray. ACS Omega. 2018;3(12):16465-16471doi: 10.1021/acsomega.8b02551.
Lee, J. H., Kang, J., Kim, S. W., Halim, W., Frey, M. W., & Joo, Y. L. (2018). Effective Suppression of the Polysulfide Shuttle Effect in Lithium-Sulfur Batteries by Implementing rGO-PEDOT:PSS-Coated Separators via Air-Controlled Electrospray. ACS omega, 3(12), 16465-16471. https://doi.org/10.1021/acsomega.8b02551
Lee, Jin Hong, et al. "Effective Suppression of the Polysulfide Shuttle Effect in Lithium-Sulfur Batteries by Implementing rGO-PEDOT:PSS-Coated Separators via Air-Controlled Electrospray." ACS omega vol. 3,12 (2018): 16465-16471. doi: https://doi.org/10.1021/acsomega.8b02551
Lee JH, Kang J, Kim SW, Halim W, Frey MW, Joo YL. Effective Suppression of the Polysulfide Shuttle Effect in Lithium-Sulfur Batteries by Implementing rGO-PEDOT:PSS-Coated Separators via Air-Controlled Electrospray. ACS Omega. 2018 Dec 03;3(12):16465-16471. doi: 10.1021/acsomega.8b02551. eCollection 2018 Dec 31. PMID: 31458281; PMCID: PMC6644160.
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ACS Omega. 2018 Dec 03;3(12):16465-16471. doi: 10.1021/acsomega.8b02551. eCollection 2018 Dec 31.

Effective Suppression of the Polysulfide Shuttle Effect in Lithium-Sulfur Batteries by Implementing rGO-PEDOT:PSS-Coated Separators via Air-Controlled Electrospray.

ACS omega

Jin Hong Lee, Jisoo Kang, Seung-Wan Kim, Willy Halim, Margaret W Frey, Yong Lak Joo

Affiliations

  1. Robert Frederick Smith School of Chemical and Biomolecular Engineering and Department of Fiber Science and Apparel Design, Cornell University, Ithaca, New York 14853, United States.

PMID: 31458281 PMCID: PMC6644160 DOI: 10.1021/acsomega.8b02551

Abstract

Lithium-sulfur (Li-S) batteries have been earning significant attention because of their high energy density and cost efficiency. Albeit these outstanding qualities, the polysulfide shuttling effect and low electrical conductivity of the sulfur active material in this battery chemistry results in poor cycling performance. In an attempt to overcome these problems, a hybrid structure of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) and reduced graphene oxide was developed and coated on the surface of a conventional separator using air-controlled electrospray. Implementing these coated separators in Li-S batteries led to lower polarization and stymied the polysulfide shuttling effect through the combining effects of electrostatic, physical, and chemical interactions. Our results reveal that the capacity and rate capacity are drastically improved via coating the separator, leading to more than twice the capacity of over 800 mA h g

Conflict of interest statement

The authors declare no competing financial interest.

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