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Hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine Additive‐Assisted Commercial Ester Electrolyte for 4.7 V Highly‐Stable Li‐Metal Batteries
The development of high‐energy density batteries is of utmost importance for various applications. However, the utilization of numerous high‐capacity materials is impeded by the inadequate stability of electrolytes beyond 4.5 V. This research proposes a straightforward yet highly efficient strategy...
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Published in: | Advanced energy materials 2023-12, Vol.13 (47), p.n/a |
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description | The development of high‐energy density batteries is of utmost importance for various applications. However, the utilization of numerous high‐capacity materials is impeded by the inadequate stability of electrolytes beyond 4.5 V. This research proposes a straightforward yet highly efficient strategy to overcome this limitation and enhance the stability of interfaces in high‐voltage Li metal batteries when employing commercial ester electrolytes. A series of electrolyte additives is designed with the aim of gradually extending the length of the terminal alkyl groups of cyclohexane‐1,2,3,4,5,6‐hexaimine (CHHI). Among these additives, hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine (HBCHHI) demonstrate exceptional performance due to the synergistic complementarity of n‐butyl and imino groups. This synergistic effect leads to the formation of a thinner, denser, and LixN‐rich solid/cathode‐electrolyte interface. Accordingly, the electrolyte‐electrode interactions are suppressed, enabling Li||LiNi0.8Co0.1Mn0.1O2 (NCM811) battery operation at a high‐voltage of 4.7 V with alleviated structural degradation of cathode and even Li deposition at the anode. The capacity retention of high‐voltage Li||NCM811 cells is improved by ≈250% after 500 cycles at a rate of 5C. The lifespan of full cells is also prolonged at quasi‐practical conditions of high cathode loading of ≈2.5 mAh cm−2.
A novel electrolyte additive, hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine, is synthesized and applied in high‐voltage metal lithium batteries, as it can both alleviate structural degradation of the cathode and even Li deposition at the anode, thus enabling Li||NCM811 battery operation at a high‐voltage of 4.7 V. |
doi_str_mv | 10.1002/aenm.202302747 |
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A novel electrolyte additive, hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine, is synthesized and applied in high‐voltage metal lithium batteries, as it can both alleviate structural degradation of the cathode and even Li deposition at the anode, thus enabling Li||NCM811 battery operation at a high‐voltage of 4.7 V.</description><identifier>ISSN: 1614-6832</identifier><identifier>EISSN: 1614-6840</identifier><identifier>DOI: 10.1002/aenm.202302747</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>Additives ; Cathodes ; Cyclohexane ; electrolyte additives ; Electrolytes ; Electrolytic cells ; hexabutylcyclohexane ; High voltages ; high‐voltage ; Interface stability ; Lithium batteries ; lithium metal anodes ; solid electrolyte interphases ; Synergistic effect</subject><ispartof>Advanced energy materials, 2023-12, Vol.13 (47), p.n/a</ispartof><rights>2023 Wiley‐VCH GmbH</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3177-a09775ae463dcc57650f1e67a47778308b01cec814668fd5d87853c6506d11b83</citedby><cites>FETCH-LOGICAL-c3177-a09775ae463dcc57650f1e67a47778308b01cec814668fd5d87853c6506d11b83</cites><orcidid>0000-0002-6021-6343</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Jia, Ruiliu</creatorcontrib><creatorcontrib>Dai, Hongliu</creatorcontrib><creatorcontrib>Tu, Xingchao</creatorcontrib><creatorcontrib>Sun, Chuang</creatorcontrib><creatorcontrib>Sun, Shuhui</creatorcontrib><creatorcontrib>Lai, Chao</creatorcontrib><title>Hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine Additive‐Assisted Commercial Ester Electrolyte for 4.7 V Highly‐Stable Li‐Metal Batteries</title><title>Advanced energy materials</title><description>The development of high‐energy density batteries is of utmost importance for various applications. However, the utilization of numerous high‐capacity materials is impeded by the inadequate stability of electrolytes beyond 4.5 V. This research proposes a straightforward yet highly efficient strategy to overcome this limitation and enhance the stability of interfaces in high‐voltage Li metal batteries when employing commercial ester electrolytes. A series of electrolyte additives is designed with the aim of gradually extending the length of the terminal alkyl groups of cyclohexane‐1,2,3,4,5,6‐hexaimine (CHHI). Among these additives, hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine (HBCHHI) demonstrate exceptional performance due to the synergistic complementarity of n‐butyl and imino groups. This synergistic effect leads to the formation of a thinner, denser, and LixN‐rich solid/cathode‐electrolyte interface. Accordingly, the electrolyte‐electrode interactions are suppressed, enabling Li||LiNi0.8Co0.1Mn0.1O2 (NCM811) battery operation at a high‐voltage of 4.7 V with alleviated structural degradation of cathode and even Li deposition at the anode. The capacity retention of high‐voltage Li||NCM811 cells is improved by ≈250% after 500 cycles at a rate of 5C. The lifespan of full cells is also prolonged at quasi‐practical conditions of high cathode loading of ≈2.5 mAh cm−2.
A novel electrolyte additive, hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine, is synthesized and applied in high‐voltage metal lithium batteries, as it can both alleviate structural degradation of the cathode and even Li deposition at the anode, thus enabling Li||NCM811 battery operation at a high‐voltage of 4.7 V.</description><subject>Additives</subject><subject>Cathodes</subject><subject>Cyclohexane</subject><subject>electrolyte additives</subject><subject>Electrolytes</subject><subject>Electrolytic cells</subject><subject>hexabutylcyclohexane</subject><subject>High voltages</subject><subject>high‐voltage</subject><subject>Interface stability</subject><subject>Lithium batteries</subject><subject>lithium metal anodes</subject><subject>solid electrolyte interphases</subject><subject>Synergistic effect</subject><issn>1614-6832</issn><issn>1614-6840</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqFkLtOwzAUhiMEEhV0ZY7EmhY7duxkDFWhSC0MXNbIdU6oKycptgtk4w3gEXgWHoUnwVVRGTnLuej7bOkPghOMhhih-ExAUw9jFBMUc8r3gh5mmA5YStH-bibxYdC3dol80QwjQnrB-wRexXztOi07qduF3xr4fvvAURyRiEZJxPy2OataNRDmZamcet4gubXKOijDUVvXYKQSOhz7gwnHGqQzre4chFVrQjrkX58P4UQ9LnTnzVsn5hrCqfLzDJz3zoXzogJ7HBxUQlvo__aj4P5ifDeaDKY3l1ejfDqQBHM-ECjjPBFAGSmlTDhLUIWBcUE55ylB6RxhCTLFlLG0KpMy5WlCpMdYifE8JUfB6fbdlWmf1mBdsWzXpvFfFnGGMCcJSzJPDbeUNK21BqpiZVQtTFdgVGxyLza5F7vcvZBthRelofuHLvLx9ezP_QFb-Ytw</recordid><startdate>20231201</startdate><enddate>20231201</enddate><creator>Jia, Ruiliu</creator><creator>Dai, Hongliu</creator><creator>Tu, Xingchao</creator><creator>Sun, Chuang</creator><creator>Sun, Shuhui</creator><creator>Lai, Chao</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-6021-6343</orcidid></search><sort><creationdate>20231201</creationdate><title>Hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine Additive‐Assisted Commercial Ester Electrolyte for 4.7 V Highly‐Stable Li‐Metal Batteries</title><author>Jia, Ruiliu ; Dai, Hongliu ; Tu, Xingchao ; Sun, Chuang ; Sun, Shuhui ; Lai, Chao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3177-a09775ae463dcc57650f1e67a47778308b01cec814668fd5d87853c6506d11b83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Additives</topic><topic>Cathodes</topic><topic>Cyclohexane</topic><topic>electrolyte additives</topic><topic>Electrolytes</topic><topic>Electrolytic cells</topic><topic>hexabutylcyclohexane</topic><topic>High voltages</topic><topic>high‐voltage</topic><topic>Interface stability</topic><topic>Lithium batteries</topic><topic>lithium metal anodes</topic><topic>solid electrolyte interphases</topic><topic>Synergistic effect</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jia, Ruiliu</creatorcontrib><creatorcontrib>Dai, Hongliu</creatorcontrib><creatorcontrib>Tu, Xingchao</creatorcontrib><creatorcontrib>Sun, Chuang</creatorcontrib><creatorcontrib>Sun, Shuhui</creatorcontrib><creatorcontrib>Lai, Chao</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Advanced energy materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jia, Ruiliu</au><au>Dai, Hongliu</au><au>Tu, Xingchao</au><au>Sun, Chuang</au><au>Sun, Shuhui</au><au>Lai, Chao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine Additive‐Assisted Commercial Ester Electrolyte for 4.7 V Highly‐Stable Li‐Metal Batteries</atitle><jtitle>Advanced energy materials</jtitle><date>2023-12-01</date><risdate>2023</risdate><volume>13</volume><issue>47</issue><epage>n/a</epage><issn>1614-6832</issn><eissn>1614-6840</eissn><abstract>The development of high‐energy density batteries is of utmost importance for various applications. However, the utilization of numerous high‐capacity materials is impeded by the inadequate stability of electrolytes beyond 4.5 V. This research proposes a straightforward yet highly efficient strategy to overcome this limitation and enhance the stability of interfaces in high‐voltage Li metal batteries when employing commercial ester electrolytes. A series of electrolyte additives is designed with the aim of gradually extending the length of the terminal alkyl groups of cyclohexane‐1,2,3,4,5,6‐hexaimine (CHHI). Among these additives, hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine (HBCHHI) demonstrate exceptional performance due to the synergistic complementarity of n‐butyl and imino groups. This synergistic effect leads to the formation of a thinner, denser, and LixN‐rich solid/cathode‐electrolyte interface. Accordingly, the electrolyte‐electrode interactions are suppressed, enabling Li||LiNi0.8Co0.1Mn0.1O2 (NCM811) battery operation at a high‐voltage of 4.7 V with alleviated structural degradation of cathode and even Li deposition at the anode. The capacity retention of high‐voltage Li||NCM811 cells is improved by ≈250% after 500 cycles at a rate of 5C. The lifespan of full cells is also prolonged at quasi‐practical conditions of high cathode loading of ≈2.5 mAh cm−2.
A novel electrolyte additive, hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine, is synthesized and applied in high‐voltage metal lithium batteries, as it can both alleviate structural degradation of the cathode and even Li deposition at the anode, thus enabling Li||NCM811 battery operation at a high‐voltage of 4.7 V.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/aenm.202302747</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-6021-6343</orcidid></addata></record> |
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subjects | Additives Cathodes Cyclohexane electrolyte additives Electrolytes Electrolytic cells hexabutylcyclohexane High voltages high‐voltage Interface stability Lithium batteries lithium metal anodes solid electrolyte interphases Synergistic effect |
title | Hexabutylcyclohexane‐1,2,3,4,5,6‐hexaimine Additive‐Assisted Commercial Ester Electrolyte for 4.7 V Highly‐Stable Li‐Metal Batteries |
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