Thin solid electrolyte separators for solid-state lithium–sulfur batteries

<p>The lithium&ndash;sulfur battery is one of the most promising &ldquo;beyond Li-ion&rdquo; battery chemistries owing to its superior gravimetric energy density and low cost. Nonetheless, its commercialization has been hindered by its low cycle life due to the polysulfide shuttle...

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Main Authors: Kim, S, Chart, YA, Narayanan, S, Pasta, M
Format: Journal article
Language:English
Published: American Chemical Society 2022
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author Kim, S
Chart, YA
Narayanan, S
Pasta, M
author_facet Kim, S
Chart, YA
Narayanan, S
Pasta, M
author_sort Kim, S
collection OXFORD
description <p>The lithium&ndash;sulfur battery is one of the most promising &ldquo;beyond Li-ion&rdquo; battery chemistries owing to its superior gravimetric energy density and low cost. Nonetheless, its commercialization has been hindered by its low cycle life due to the polysulfide shuttle and nonuniform Li-metal plating and stripping. Thin and dense solid electrolyte separators could address these issues without compromising on energy density. Here, we introduce a novel argyrodite (Li<sub>6</sub>PS<sub>5</sub>Cl)&ndash;carboxylated nitrile butadiene rubber (XNBR) composite thin solid electrolyte separator (TSE) (&lt;50 &mu;m) processed by a scalable calendering technique and compatible with Li-metal. When integrated in a full cell with a commercial tape-cast sulfur cathode (3.54 mg<sub><em>S</em></sub>&nbsp;cm<sup>&ndash;2</sup>) in the presence of an in situ polymerized lithium bis(fluorosulfonyl)imide-polydioxolane catholyte and a 100 &mu;m Li-metal foil anode, we demonstrate stable cycling for 50 cycles under realistic operating conditions (stack pressure of &lt;1 MPa and 30 &deg;C).</p>
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spelling oxford-uuid:b930c9cb-e756-4523-aac2-9f0cb46d10852023-04-05T07:47:49ZThin solid electrolyte separators for solid-state lithium–sulfur batteriesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b930c9cb-e756-4523-aac2-9f0cb46d1085EnglishSymplectic ElementsAmerican Chemical Society2022Kim, SChart, YANarayanan, SPasta, M<p>The lithium&ndash;sulfur battery is one of the most promising &ldquo;beyond Li-ion&rdquo; battery chemistries owing to its superior gravimetric energy density and low cost. Nonetheless, its commercialization has been hindered by its low cycle life due to the polysulfide shuttle and nonuniform Li-metal plating and stripping. Thin and dense solid electrolyte separators could address these issues without compromising on energy density. Here, we introduce a novel argyrodite (Li<sub>6</sub>PS<sub>5</sub>Cl)&ndash;carboxylated nitrile butadiene rubber (XNBR) composite thin solid electrolyte separator (TSE) (&lt;50 &mu;m) processed by a scalable calendering technique and compatible with Li-metal. When integrated in a full cell with a commercial tape-cast sulfur cathode (3.54 mg<sub><em>S</em></sub>&nbsp;cm<sup>&ndash;2</sup>) in the presence of an in situ polymerized lithium bis(fluorosulfonyl)imide-polydioxolane catholyte and a 100 &mu;m Li-metal foil anode, we demonstrate stable cycling for 50 cycles under realistic operating conditions (stack pressure of &lt;1 MPa and 30 &deg;C).</p>
spellingShingle Kim, S
Chart, YA
Narayanan, S
Pasta, M
Thin solid electrolyte separators for solid-state lithium–sulfur batteries
title Thin solid electrolyte separators for solid-state lithium–sulfur batteries
title_full Thin solid electrolyte separators for solid-state lithium–sulfur batteries
title_fullStr Thin solid electrolyte separators for solid-state lithium–sulfur batteries
title_full_unstemmed Thin solid electrolyte separators for solid-state lithium–sulfur batteries
title_short Thin solid electrolyte separators for solid-state lithium–sulfur batteries
title_sort thin solid electrolyte separators for solid state lithium sulfur batteries
work_keys_str_mv AT kims thinsolidelectrolyteseparatorsforsolidstatelithiumsulfurbatteries
AT chartya thinsolidelectrolyteseparatorsforsolidstatelithiumsulfurbatteries
AT narayanans thinsolidelectrolyteseparatorsforsolidstatelithiumsulfurbatteries
AT pastam thinsolidelectrolyteseparatorsforsolidstatelithiumsulfurbatteries