Sol-gel encapsulated lithium polysulfide catholyte and its application in lithium-sulfur batteries
Lithium polysulfides are the active cathode species in lithium-sulfur batteries. In this work non-hydrolytic sol-gel chemistry is tuned to create a sol that successfully encapsulates lithium polysulfide solutions, forming a solid polysulfide gel. The chemistry of the polysulfide gel is studied using...
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| Veröffentlicht in: | Materials horizons 2016, Vol.3 (2), p.137-144 |
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| creator | Smith, Leland C Malati, Peter Fang, Jonathan Richardson, Wade Ashby, David Lai, Chun-Han Dunn, Bruce S |
| description | Lithium polysulfides are the active cathode species in lithium-sulfur batteries. In this work non-hydrolytic sol-gel chemistry is tuned to create a sol that successfully encapsulates lithium polysulfide solutions, forming a solid polysulfide gel. The chemistry of the polysulfide gel is studied using Fourier transform infrared and Raman spectroscopies, which confirm the presence of active lithium polysulfides. This polysulfide gel is incorporated into a solid state lithium sulfur battery and cycled galvanostatically. Electrochemical impedance spectroscopy confirms that the gel has very similar electrochemical properties to the lithium polysulfide solutions from which it was prepared. Discharge capacities as high as 1 mA h cm
−2
are obtained for a polysulfide gel cathode that is 1 mm thick.
Careful control of sol-gel chemistry allows for the encapsulation of water-reactive lithium polysulfides |
| doi_str_mv | 10.1039/c5mh00228a |
| format | Article |
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−2
are obtained for a polysulfide gel cathode that is 1 mm thick.
Careful control of sol-gel chemistry allows for the encapsulation of water-reactive lithium polysulfides</description><identifier>ISSN: 2051-6347</identifier><identifier>EISSN: 2051-6355</identifier><identifier>DOI: 10.1039/c5mh00228a</identifier><language>eng</language><subject>Cathodes ; Encapsulation ; Fourier transforms ; Infrared ; Lithium ; Lithium sulfur batteries ; Polysulfides ; Sol gel process</subject><ispartof>Materials horizons, 2016, Vol.3 (2), p.137-144</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-c79b0915c33723c89b48417e429c7fbe7d723706faeb0493bbf4410ae9dd0ec43</citedby><cites>FETCH-LOGICAL-c393t-c79b0915c33723c89b48417e429c7fbe7d723706faeb0493bbf4410ae9dd0ec43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>Smith, Leland C</creatorcontrib><creatorcontrib>Malati, Peter</creatorcontrib><creatorcontrib>Fang, Jonathan</creatorcontrib><creatorcontrib>Richardson, Wade</creatorcontrib><creatorcontrib>Ashby, David</creatorcontrib><creatorcontrib>Lai, Chun-Han</creatorcontrib><creatorcontrib>Dunn, Bruce S</creatorcontrib><title>Sol-gel encapsulated lithium polysulfide catholyte and its application in lithium-sulfur batteries</title><title>Materials horizons</title><description>Lithium polysulfides are the active cathode species in lithium-sulfur batteries. In this work non-hydrolytic sol-gel chemistry is tuned to create a sol that successfully encapsulates lithium polysulfide solutions, forming a solid polysulfide gel. The chemistry of the polysulfide gel is studied using Fourier transform infrared and Raman spectroscopies, which confirm the presence of active lithium polysulfides. This polysulfide gel is incorporated into a solid state lithium sulfur battery and cycled galvanostatically. Electrochemical impedance spectroscopy confirms that the gel has very similar electrochemical properties to the lithium polysulfide solutions from which it was prepared. Discharge capacities as high as 1 mA h cm
−2
are obtained for a polysulfide gel cathode that is 1 mm thick.
Careful control of sol-gel chemistry allows for the encapsulation of water-reactive lithium polysulfides</description><subject>Cathodes</subject><subject>Encapsulation</subject><subject>Fourier transforms</subject><subject>Infrared</subject><subject>Lithium</subject><subject>Lithium sulfur batteries</subject><subject>Polysulfides</subject><subject>Sol gel process</subject><issn>2051-6347</issn><issn>2051-6355</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpFkDFPwzAQRi0EElXpwo7kESEFzrHdxGNVAUUqYgDmyHYu1MhNgu0M_fekFMp0d0_vu-Ej5JLBLQOu7qzcbgDyvNQnZJKDZNmcS3l63EVxTmYxfgIA40JCCRNiXjuffaCn2Frdx8HrhDX1Lm3csKV953cja1yN1Oq0Gc-EVLc1dSlS3ffejdh1LXXtXyjbB4ZAjU4Jg8N4Qc4a7SPOfueUvD_cvy1X2frl8Wm5WGeWK54yWygDiknLeZFzWyojSsEKFLmyRWOwqEdcwLzRaEAobkwjBAONqq4BreBTcn3424fua8CYqq2LFr3XLXZDrFgJICRjIh_Vm4NqQxdjwKbqg9vqsKsYVPsuq6V8Xv10uRjlq4Mcoj16_13zb_nnch4</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>Smith, Leland C</creator><creator>Malati, Peter</creator><creator>Fang, Jonathan</creator><creator>Richardson, Wade</creator><creator>Ashby, David</creator><creator>Lai, Chun-Han</creator><creator>Dunn, Bruce S</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>2016</creationdate><title>Sol-gel encapsulated lithium polysulfide catholyte and its application in lithium-sulfur batteries</title><author>Smith, Leland C ; Malati, Peter ; Fang, Jonathan ; Richardson, Wade ; Ashby, David ; Lai, Chun-Han ; Dunn, Bruce S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-c79b0915c33723c89b48417e429c7fbe7d723706faeb0493bbf4410ae9dd0ec43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Cathodes</topic><topic>Encapsulation</topic><topic>Fourier transforms</topic><topic>Infrared</topic><topic>Lithium</topic><topic>Lithium sulfur batteries</topic><topic>Polysulfides</topic><topic>Sol gel process</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Smith, Leland C</creatorcontrib><creatorcontrib>Malati, Peter</creatorcontrib><creatorcontrib>Fang, Jonathan</creatorcontrib><creatorcontrib>Richardson, Wade</creatorcontrib><creatorcontrib>Ashby, David</creatorcontrib><creatorcontrib>Lai, Chun-Han</creatorcontrib><creatorcontrib>Dunn, Bruce S</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials horizons</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Smith, Leland C</au><au>Malati, Peter</au><au>Fang, Jonathan</au><au>Richardson, Wade</au><au>Ashby, David</au><au>Lai, Chun-Han</au><au>Dunn, Bruce S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sol-gel encapsulated lithium polysulfide catholyte and its application in lithium-sulfur batteries</atitle><jtitle>Materials horizons</jtitle><date>2016</date><risdate>2016</risdate><volume>3</volume><issue>2</issue><spage>137</spage><epage>144</epage><pages>137-144</pages><issn>2051-6347</issn><eissn>2051-6355</eissn><abstract>Lithium polysulfides are the active cathode species in lithium-sulfur batteries. In this work non-hydrolytic sol-gel chemistry is tuned to create a sol that successfully encapsulates lithium polysulfide solutions, forming a solid polysulfide gel. The chemistry of the polysulfide gel is studied using Fourier transform infrared and Raman spectroscopies, which confirm the presence of active lithium polysulfides. This polysulfide gel is incorporated into a solid state lithium sulfur battery and cycled galvanostatically. Electrochemical impedance spectroscopy confirms that the gel has very similar electrochemical properties to the lithium polysulfide solutions from which it was prepared. Discharge capacities as high as 1 mA h cm
−2
are obtained for a polysulfide gel cathode that is 1 mm thick.
Careful control of sol-gel chemistry allows for the encapsulation of water-reactive lithium polysulfides</abstract><doi>10.1039/c5mh00228a</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2051-6347 |
| ispartof | Materials horizons, 2016, Vol.3 (2), p.137-144 |
| issn | 2051-6347 2051-6355 |
| language | eng |
| recordid | cdi_rsc_primary_c5mh00228a |
| source | Royal Society Of Chemistry Journals; Alma/SFX Local Collection |
| subjects | Cathodes Encapsulation Fourier transforms Infrared Lithium Lithium sulfur batteries Polysulfides Sol gel process |
| title | Sol-gel encapsulated lithium polysulfide catholyte and its application in lithium-sulfur batteries |
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