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Improved synthesis of -ethyl-3,7-bis(trifluoromethyl)phenothiazine
N -Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of ca. 3.8 V vs. Li +/0 in carbonate solvents. This compound has enabled extensive overcharge protection of LiFePO 4 /graphite cells and doe...
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| Published in: | New journal of chemistry 2020-07, Vol.44 (26), p.11349-11355 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Online Access: | Get full text |
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| container_end_page | 11355 |
| container_issue | 26 |
| container_start_page | 11349 |
| container_title | New journal of chemistry |
| container_volume | 44 |
| creator | Ergun, Selin Casselman, Matthew D Kaur, Aman Preet Attanayake, N. Harsha Parkin, Sean R Odom, Susan A |
| description | N
-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents. This compound has enabled extensive overcharge protection of LiFePO
4
/graphite cells and does so at high charging rates at high concentrations. Our initial synthesis of this compound suffered from low yields and difficult purifications. Here we report a cleaner, higher-yielding synthesis and additional characterization of the product and its stable radical cation salt.
N
-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents. |
| doi_str_mv | 10.1039/d0nj00184h |
| format | article |
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-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents. This compound has enabled extensive overcharge protection of LiFePO
4
/graphite cells and does so at high charging rates at high concentrations. Our initial synthesis of this compound suffered from low yields and difficult purifications. Here we report a cleaner, higher-yielding synthesis and additional characterization of the product and its stable radical cation salt.
N
-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents.</description><identifier>ISSN: 1144-0546</identifier><identifier>EISSN: 1369-9261</identifier><identifier>DOI: 10.1039/d0nj00184h</identifier><language>eng</language><ispartof>New journal of chemistry, 2020-07, Vol.44 (26), p.11349-11355</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Ergun, Selin</creatorcontrib><creatorcontrib>Casselman, Matthew D</creatorcontrib><creatorcontrib>Kaur, Aman Preet</creatorcontrib><creatorcontrib>Attanayake, N. Harsha</creatorcontrib><creatorcontrib>Parkin, Sean R</creatorcontrib><creatorcontrib>Odom, Susan A</creatorcontrib><title>Improved synthesis of -ethyl-3,7-bis(trifluoromethyl)phenothiazine</title><title>New journal of chemistry</title><description>N
-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents. This compound has enabled extensive overcharge protection of LiFePO
4
/graphite cells and does so at high charging rates at high concentrations. Our initial synthesis of this compound suffered from low yields and difficult purifications. Here we report a cleaner, higher-yielding synthesis and additional characterization of the product and its stable radical cation salt.
N
-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents.</description><issn>1144-0546</issn><issn>1369-9261</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqFjj0LwjAARIMoWD8Wd6FuCkYTE1O7Koru7qXahETaJCRRqL_eDwQ3ne5x74YDYIDRDCOSzgukLwjhFZUNEGHCUpguGG4-GVMK0ZKyNuh4_9rghOEIrA-VdebGi9jXOkjulY-NiCEPsi4hmSbwpPw4OCXKq3GmevcTK7k2Qar8rjTvgZbIS8_7n-yC4W573Oyh8-fMOlXlrs6-x8h_P_rlM1sI8gCnCUeP</recordid><startdate>20200706</startdate><enddate>20200706</enddate><creator>Ergun, Selin</creator><creator>Casselman, Matthew D</creator><creator>Kaur, Aman Preet</creator><creator>Attanayake, N. Harsha</creator><creator>Parkin, Sean R</creator><creator>Odom, Susan A</creator><scope/></search><sort><creationdate>20200706</creationdate><title>Improved synthesis of -ethyl-3,7-bis(trifluoromethyl)phenothiazine</title><author>Ergun, Selin ; Casselman, Matthew D ; Kaur, Aman Preet ; Attanayake, N. Harsha ; Parkin, Sean R ; Odom, Susan A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-rsc_primary_d0nj00184h3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ergun, Selin</creatorcontrib><creatorcontrib>Casselman, Matthew D</creatorcontrib><creatorcontrib>Kaur, Aman Preet</creatorcontrib><creatorcontrib>Attanayake, N. Harsha</creatorcontrib><creatorcontrib>Parkin, Sean R</creatorcontrib><creatorcontrib>Odom, Susan A</creatorcontrib><jtitle>New journal of chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ergun, Selin</au><au>Casselman, Matthew D</au><au>Kaur, Aman Preet</au><au>Attanayake, N. Harsha</au><au>Parkin, Sean R</au><au>Odom, Susan A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved synthesis of -ethyl-3,7-bis(trifluoromethyl)phenothiazine</atitle><jtitle>New journal of chemistry</jtitle><date>2020-07-06</date><risdate>2020</risdate><volume>44</volume><issue>26</issue><spage>11349</spage><epage>11355</epage><pages>11349-11355</pages><issn>1144-0546</issn><eissn>1369-9261</eissn><abstract>N
-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents. This compound has enabled extensive overcharge protection of LiFePO
4
/graphite cells and does so at high charging rates at high concentrations. Our initial synthesis of this compound suffered from low yields and difficult purifications. Here we report a cleaner, higher-yielding synthesis and additional characterization of the product and its stable radical cation salt.
N
-Ethyl-3,7-bis(trifluoromethyl)phenothiazine is a highly soluble redox shuttle for overcharge protection in lithium-ion batteries with an oxidation potential of
ca.
3.8 V
vs.
Li
+/0
in carbonate solvents.</abstract><doi>10.1039/d0nj00184h</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1144-0546 |
| ispartof | New journal of chemistry, 2020-07, Vol.44 (26), p.11349-11355 |
| issn | 1144-0546 1369-9261 |
| language | eng |
| recordid | cdi_rsc_primary_d0nj00184h |
| source | Royal Society of Chemistry |
| title | Improved synthesis of -ethyl-3,7-bis(trifluoromethyl)phenothiazine |
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