Effect of Quaternary Phosphonium Salts in Organic Electrolyte for Lithium Secondary Batteries
Additive behaviors of several bis (trifluoromethylsulfonyl) amide-based phosphonium salts in an organic electrolyte used for lithium secondary batteries are reported. Electrolytic properties of a lithium hexafluorophosphatebased organic electrolyte mixed with the phosphonium salts were examined. It...
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| Veröffentlicht in: | Denki kagaku oyobi kōgyō butsuri kagaku 2011/06/05, Vol.79(6), pp.453-457 |
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| container_title | Denki kagaku oyobi kōgyō butsuri kagaku |
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| creator | TSUNASHIMA, Katsuhiko YONEKAWA, Fumihiro KIKUCHI, Masahiro SUGIYA, Masashi |
| description | Additive behaviors of several bis (trifluoromethylsulfonyl) amide-based phosphonium salts in an organic electrolyte used for lithium secondary batteries are reported. Electrolytic properties of a lithium hexafluorophosphatebased organic electrolyte mixed with the phosphonium salts were examined. It was found that the mixed electrolytes containing the phosphonium salts showed lower conductivities and higher viscosities than the organic electrolyte. However, in the case of the mixed phosphonium electrolytes based on asymmetrical cations, the charge-discharge cyclabilities of the lithium battery cells were superior to that of the cell containing the organic electrolyte. Furthermore, the thermal stability of LiCoO2 cathodes charged in the mixed phosphonium electrolytes was considerably improved. These results suggest that the phosphonium salts are regarded as effective electrolyte additives for lithium secondary batteries. |
| doi_str_mv | 10.5796/electrochemistry.79.453 |
| format | Article |
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Electrolytic properties of a lithium hexafluorophosphatebased organic electrolyte mixed with the phosphonium salts were examined. It was found that the mixed electrolytes containing the phosphonium salts showed lower conductivities and higher viscosities than the organic electrolyte. However, in the case of the mixed phosphonium electrolytes based on asymmetrical cations, the charge-discharge cyclabilities of the lithium battery cells were superior to that of the cell containing the organic electrolyte. Furthermore, the thermal stability of LiCoO2 cathodes charged in the mixed phosphonium electrolytes was considerably improved. These results suggest that the phosphonium salts are regarded as effective electrolyte additives for lithium secondary batteries.</description><identifier>ISSN: 1344-3542</identifier><identifier>EISSN: 2186-2451</identifier><identifier>DOI: 10.5796/electrochemistry.79.453</identifier><language>eng</language><publisher>Tokyo: The Electrochemical Society of Japan</publisher><subject>Electrolyte Additives ; Lithium Secondary Battery ; Quaternary Phosphonium Salts ; Thermal Stability</subject><ispartof>Electrochemistry, 2011/06/05, Vol.79(6), pp.453-457</ispartof><rights>2011 The Electrochemical Society of Japan</rights><rights>Copyright Japan Science and Technology Agency 2011</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c552t-b0c54f971cc737b5283397cde4216a35ade567f9eb035a889313987171eb78443</citedby><cites>FETCH-LOGICAL-c552t-b0c54f971cc737b5283397cde4216a35ade567f9eb035a889313987171eb78443</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1876,4009,27902,27903,27904</link.rule.ids></links><search><creatorcontrib>TSUNASHIMA, Katsuhiko</creatorcontrib><creatorcontrib>YONEKAWA, Fumihiro</creatorcontrib><creatorcontrib>KIKUCHI, Masahiro</creatorcontrib><creatorcontrib>SUGIYA, Masashi</creatorcontrib><title>Effect of Quaternary Phosphonium Salts in Organic Electrolyte for Lithium Secondary Batteries</title><title>Denki kagaku oyobi kōgyō butsuri kagaku</title><addtitle>Electrochemistry</addtitle><description>Additive behaviors of several bis (trifluoromethylsulfonyl) amide-based phosphonium salts in an organic electrolyte used for lithium secondary batteries are reported. Electrolytic properties of a lithium hexafluorophosphatebased organic electrolyte mixed with the phosphonium salts were examined. It was found that the mixed electrolytes containing the phosphonium salts showed lower conductivities and higher viscosities than the organic electrolyte. However, in the case of the mixed phosphonium electrolytes based on asymmetrical cations, the charge-discharge cyclabilities of the lithium battery cells were superior to that of the cell containing the organic electrolyte. Furthermore, the thermal stability of LiCoO2 cathodes charged in the mixed phosphonium electrolytes was considerably improved. These results suggest that the phosphonium salts are regarded as effective electrolyte additives for lithium secondary batteries.</description><subject>Electrolyte Additives</subject><subject>Lithium Secondary Battery</subject><subject>Quaternary Phosphonium Salts</subject><subject>Thermal Stability</subject><issn>1344-3542</issn><issn>2186-2451</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNptkE9LAzEQxYMoWGo_gwHPW5NNstkctdQ_UKiiHiWk6Wx3y3ZTk-yh397UlR7EywwD7_dm5iF0TclUSFXcQgs2emdr2DUh-sNUqikX7AyNcloWWc4FPUcjyjjPmOD5JZqEsCWEUKIKlasR-pxXVbLArsKvvYngO-MP-KV2YV-7rul3-M20MeCmw0u_MV1j8XzY2R4i4Mp5vGhi_SME67r1Eb83MTk1EK7QRWXaAJPfPkYfD_P32VO2WD4-z-4WmRUij9mKWMErJam1ksmVyEvGlLRr4DktDBNmDaKQlYIVSUNZKkaZKiWVFFay5JyN0c3gu_fuq4cQ9db16ZU2aMql5LmQRCWVHFTWuxA8VHrvm106WFOij3Hqv3FqqXSKM5GLgdyGaDZw4oyPjW3hX64YSsJPMlsbr6Fj30FTiy8</recordid><startdate>2011</startdate><enddate>2011</enddate><creator>TSUNASHIMA, Katsuhiko</creator><creator>YONEKAWA, Fumihiro</creator><creator>KIKUCHI, Masahiro</creator><creator>SUGIYA, Masashi</creator><general>The Electrochemical Society of Japan</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QL</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope></search><sort><creationdate>2011</creationdate><title>Effect of Quaternary Phosphonium Salts in Organic Electrolyte for Lithium Secondary Batteries</title><author>TSUNASHIMA, Katsuhiko ; 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Electrolytic properties of a lithium hexafluorophosphatebased organic electrolyte mixed with the phosphonium salts were examined. It was found that the mixed electrolytes containing the phosphonium salts showed lower conductivities and higher viscosities than the organic electrolyte. However, in the case of the mixed phosphonium electrolytes based on asymmetrical cations, the charge-discharge cyclabilities of the lithium battery cells were superior to that of the cell containing the organic electrolyte. Furthermore, the thermal stability of LiCoO2 cathodes charged in the mixed phosphonium electrolytes was considerably improved. These results suggest that the phosphonium salts are regarded as effective electrolyte additives for lithium secondary batteries.</abstract><cop>Tokyo</cop><pub>The Electrochemical Society of Japan</pub><doi>10.5796/electrochemistry.79.453</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| source | J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Electrolyte Additives Lithium Secondary Battery Quaternary Phosphonium Salts Thermal Stability |
| title | Effect of Quaternary Phosphonium Salts in Organic Electrolyte for Lithium Secondary Batteries |
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