A 3D multifunctional architecture for lithium–sulfur batteries with high areal capacity

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dc.contributor.authorZhao, S.
dc.contributor.authorFang, R.
dc.contributor.authorSun, Z.
dc.contributor.authorWang, S.
dc.contributor.authorVeder, J.
dc.contributor.authorSaunders, M.
dc.contributor.authorCheng, H.
dc.contributor.authorLiu, C.
dc.contributor.authorJiang, S.P.
dc.contributor.authorLi, F.
dc.date.issued2018
dc.description.abstractLithium–sulfur (Li–S) batteries are highly attractive as next-generation electrochemical energy-storage technologies because they can provide a high energy density at a low cost. However, the performance degradation of sulfur cathodes with high mass loadings remains a significant challenge to be addressed. Here, a 3D multifunctional integrated and sponge-like architecture is designed as the cathode framework, which provides a favorable balance between high sulfur loadings and uncompromised electrochemical performances. In this architecture, a highly porous nitrogen-doped carbon fiber foam is used as a 3D current collector and host for sulfur accommodation and a thin graphene layer is used for polysulfide interception, which not only facilitates fast electron and lithium-ion transport but also enables effective active material immobilization by both physical restriction and chemical adsorption. With a sulfur loading of 7.7 mg cm⁻², high areal capacities up to 8.7 mAh cm⁻² are attained together with excellent cycling stability over 500 cycles. This approach demonstrates a new concept for the construction of cathode architectures for practical Li–S batteries and can be extended to other battery systems.
dc.description.statementofresponsibilityShiyong Zhao, Ruopian Fang, Zhenhua Sun, Shaogang Wang, Jean-Pierre Veder, Martin Saunders, Hui-Ming Cheng, Chang Liu, San Ping Jiang, and Feng Li
dc.identifier.citationsmall methods, 2018; 2(6):1800067-1-1800067-9
dc.identifier.doi10.1002/smtd.201800067
dc.identifier.issn2366-9608
dc.identifier.issn2366-9608
dc.identifier.orcidZhao, S. [0000-0002-6235-3704]
dc.identifier.urihttps://hdl.handle.net/2440/134549
dc.language.isoen
dc.publisherWiley
dc.relation.granthttp://purl.org/au-research/grants/arc/DP150102044
dc.relation.granthttp://purl.org/au-research/grants/arc/DP150102025
dc.relation.granthttp://purl.org/au-research/grants/arc/DP180100731
dc.rights© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
dc.source.urihttps://doi.org/10.1002/smtd.201800067
dc.subjectHigh energy density; high sulfur loading; lithium–sulfur batteries
dc.titleA 3D multifunctional architecture for lithium–sulfur batteries with high areal capacity
dc.typeJournal article
pubs.publication-statusPublished

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