Safety improvement of lithium ion batteries by organo-fluorine compounds
Fluoro-carbonates are excellent solvents with high oxidation stability. [Display omitted] ► Thermal stability of electrolyte solutions was highly improved by mixing of fluoro-carbonates. ► Electrochemical oxidation stability was highly improved by mixing of fluoro-carbonates. ► Irreversible capaciti...
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| Veröffentlicht in: | Journal of fluorine chemistry 2011-12, Vol.132 (12), p.1174-1181 |
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| container_issue | 12 |
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| container_title | Journal of fluorine chemistry |
| container_volume | 132 |
| creator | Matsuda, Yuki Nakajima, Tsuyoshi Ohzawa, Yoshimi Koh, Meiten Yamauchi, Akiyoshi Kagawa, Michiru Aoyama, Hirokazu |
| description | Fluoro-carbonates are excellent solvents with high oxidation stability.
[Display omitted]
► Thermal stability of electrolyte solutions was highly improved by mixing of fluoro-carbonates. ► Electrochemical oxidation stability was highly improved by mixing of fluoro-carbonates. ► Irreversible capacities of graphite electrode were reduced by mixing of fluoro-carbonates.
Thermal stability, electrochemical oxidation stability and charge/discharge characteristics of natural graphite powder were investigated by mixing of five fluoro-carbonates with 1
mol/L LiClO
4–EC/DEC/PC (1:1:1
vol.). DSC study revealed that thermal stability of the electrolyte solution was improved by mixing of fluoro-carbonates by 10.0–33.3
vol.%. Electrochemical oxidation stability was also improved. Oxidation currents for Pt electrode significantly decreased by mixing of fluoro-carbonates. In the fluoro-carbonate-mixed electrolyte solutions, electrochemical reduction of PC decreased with increasing concentration of fluoro-carbonate and current density. As a result, first coulombic efficiency for natural graphite electrode increased, that is, irreversible capacity decreased in the fluoro-carbonate-mixed solutions. |
| doi_str_mv | 10.1016/j.jfluchem.2011.07.019 |
| format | Article |
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[Display omitted]
► Thermal stability of electrolyte solutions was highly improved by mixing of fluoro-carbonates. ► Electrochemical oxidation stability was highly improved by mixing of fluoro-carbonates. ► Irreversible capacities of graphite electrode were reduced by mixing of fluoro-carbonates.
Thermal stability, electrochemical oxidation stability and charge/discharge characteristics of natural graphite powder were investigated by mixing of five fluoro-carbonates with 1
mol/L LiClO
4–EC/DEC/PC (1:1:1
vol.). DSC study revealed that thermal stability of the electrolyte solution was improved by mixing of fluoro-carbonates by 10.0–33.3
vol.%. Electrochemical oxidation stability was also improved. Oxidation currents for Pt electrode significantly decreased by mixing of fluoro-carbonates. In the fluoro-carbonate-mixed electrolyte solutions, electrochemical reduction of PC decreased with increasing concentration of fluoro-carbonate and current density. As a result, first coulombic efficiency for natural graphite electrode increased, that is, irreversible capacity decreased in the fluoro-carbonate-mixed solutions.</description><identifier>ISSN: 0022-1139</identifier><identifier>EISSN: 1873-3328</identifier><identifier>DOI: 10.1016/j.jfluchem.2011.07.019</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Electrochemical oxidation ; Electrodes ; Electrolytes ; Graphite ; Graphite electrode ; Lithium ion battery ; Lithium-ion batteries ; Organo-fluorine compound ; Oxidation stability ; Reduction (electrolytic) ; Stability ; Thermal stability</subject><ispartof>Journal of fluorine chemistry, 2011-12, Vol.132 (12), p.1174-1181</ispartof><rights>2011 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c411t-bbd2703832363f907ed7ef5fab55dbecbb87aa93515cce882d239a5ac24c0e143</citedby><cites>FETCH-LOGICAL-c411t-bbd2703832363f907ed7ef5fab55dbecbb87aa93515cce882d239a5ac24c0e143</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jfluchem.2011.07.019$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Matsuda, Yuki</creatorcontrib><creatorcontrib>Nakajima, Tsuyoshi</creatorcontrib><creatorcontrib>Ohzawa, Yoshimi</creatorcontrib><creatorcontrib>Koh, Meiten</creatorcontrib><creatorcontrib>Yamauchi, Akiyoshi</creatorcontrib><creatorcontrib>Kagawa, Michiru</creatorcontrib><creatorcontrib>Aoyama, Hirokazu</creatorcontrib><title>Safety improvement of lithium ion batteries by organo-fluorine compounds</title><title>Journal of fluorine chemistry</title><description>Fluoro-carbonates are excellent solvents with high oxidation stability.
[Display omitted]
► Thermal stability of electrolyte solutions was highly improved by mixing of fluoro-carbonates. ► Electrochemical oxidation stability was highly improved by mixing of fluoro-carbonates. ► Irreversible capacities of graphite electrode were reduced by mixing of fluoro-carbonates.
Thermal stability, electrochemical oxidation stability and charge/discharge characteristics of natural graphite powder were investigated by mixing of five fluoro-carbonates with 1
mol/L LiClO
4–EC/DEC/PC (1:1:1
vol.). DSC study revealed that thermal stability of the electrolyte solution was improved by mixing of fluoro-carbonates by 10.0–33.3
vol.%. Electrochemical oxidation stability was also improved. Oxidation currents for Pt electrode significantly decreased by mixing of fluoro-carbonates. In the fluoro-carbonate-mixed electrolyte solutions, electrochemical reduction of PC decreased with increasing concentration of fluoro-carbonate and current density. As a result, first coulombic efficiency for natural graphite electrode increased, that is, irreversible capacity decreased in the fluoro-carbonate-mixed solutions.</description><subject>Electrochemical oxidation</subject><subject>Electrodes</subject><subject>Electrolytes</subject><subject>Graphite</subject><subject>Graphite electrode</subject><subject>Lithium ion battery</subject><subject>Lithium-ion batteries</subject><subject>Organo-fluorine compound</subject><subject>Oxidation stability</subject><subject>Reduction (electrolytic)</subject><subject>Stability</subject><subject>Thermal stability</subject><issn>0022-1139</issn><issn>1873-3328</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkDFPwzAUhC0EEqXwF1BGloRnO46TDVQBRarEAMyW7bxQR0lc7KRS_z2pCjPTLXf33n2E3FLIKNDivs3appvsFvuMAaUZyAxodUYWtJQ85ZyV52QBwFhKKa8uyVWMLQBIkOWCrN91g-Mhcf0u-D32OIyJb5LOjVs39YnzQ2L0OGJwGBNzSHz40oNP54M-uAET6_udn4Y6XpOLRncRb351ST6fnz5W63Tz9vK6etykNqd0TI2pmQRecsYL3lQgsZbYiEYbIWqD1phSal1xQYW1WJasZrzSQluWW0Ca8yW5O_XO_35PGEfVu2ix6_SAfoqKyjwvZClAzNbiZLXBxxiwUbvgeh0OioI6olOt-kOnjugUSDWjm4MPpyDOQ_YOg4rW4WCxdgHtqGrv_qv4AfcwfJg</recordid><startdate>20111201</startdate><enddate>20111201</enddate><creator>Matsuda, Yuki</creator><creator>Nakajima, Tsuyoshi</creator><creator>Ohzawa, Yoshimi</creator><creator>Koh, Meiten</creator><creator>Yamauchi, Akiyoshi</creator><creator>Kagawa, Michiru</creator><creator>Aoyama, Hirokazu</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20111201</creationdate><title>Safety improvement of lithium ion batteries by organo-fluorine compounds</title><author>Matsuda, Yuki ; Nakajima, Tsuyoshi ; Ohzawa, Yoshimi ; Koh, Meiten ; Yamauchi, Akiyoshi ; Kagawa, Michiru ; Aoyama, Hirokazu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c411t-bbd2703832363f907ed7ef5fab55dbecbb87aa93515cce882d239a5ac24c0e143</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Electrochemical oxidation</topic><topic>Electrodes</topic><topic>Electrolytes</topic><topic>Graphite</topic><topic>Graphite electrode</topic><topic>Lithium ion battery</topic><topic>Lithium-ion batteries</topic><topic>Organo-fluorine compound</topic><topic>Oxidation stability</topic><topic>Reduction (electrolytic)</topic><topic>Stability</topic><topic>Thermal stability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Matsuda, Yuki</creatorcontrib><creatorcontrib>Nakajima, Tsuyoshi</creatorcontrib><creatorcontrib>Ohzawa, Yoshimi</creatorcontrib><creatorcontrib>Koh, Meiten</creatorcontrib><creatorcontrib>Yamauchi, Akiyoshi</creatorcontrib><creatorcontrib>Kagawa, Michiru</creatorcontrib><creatorcontrib>Aoyama, Hirokazu</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>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of fluorine chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Matsuda, Yuki</au><au>Nakajima, Tsuyoshi</au><au>Ohzawa, Yoshimi</au><au>Koh, Meiten</au><au>Yamauchi, Akiyoshi</au><au>Kagawa, Michiru</au><au>Aoyama, Hirokazu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Safety improvement of lithium ion batteries by organo-fluorine compounds</atitle><jtitle>Journal of fluorine chemistry</jtitle><date>2011-12-01</date><risdate>2011</risdate><volume>132</volume><issue>12</issue><spage>1174</spage><epage>1181</epage><pages>1174-1181</pages><issn>0022-1139</issn><eissn>1873-3328</eissn><abstract>Fluoro-carbonates are excellent solvents with high oxidation stability.
[Display omitted]
► Thermal stability of electrolyte solutions was highly improved by mixing of fluoro-carbonates. ► Electrochemical oxidation stability was highly improved by mixing of fluoro-carbonates. ► Irreversible capacities of graphite electrode were reduced by mixing of fluoro-carbonates.
Thermal stability, electrochemical oxidation stability and charge/discharge characteristics of natural graphite powder were investigated by mixing of five fluoro-carbonates with 1
mol/L LiClO
4–EC/DEC/PC (1:1:1
vol.). DSC study revealed that thermal stability of the electrolyte solution was improved by mixing of fluoro-carbonates by 10.0–33.3
vol.%. Electrochemical oxidation stability was also improved. Oxidation currents for Pt electrode significantly decreased by mixing of fluoro-carbonates. In the fluoro-carbonate-mixed electrolyte solutions, electrochemical reduction of PC decreased with increasing concentration of fluoro-carbonate and current density. As a result, first coulombic efficiency for natural graphite electrode increased, that is, irreversible capacity decreased in the fluoro-carbonate-mixed solutions.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.jfluchem.2011.07.019</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of fluorine chemistry, 2011-12, Vol.132 (12), p.1174-1181 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Electrochemical oxidation Electrodes Electrolytes Graphite Graphite electrode Lithium ion battery Lithium-ion batteries Organo-fluorine compound Oxidation stability Reduction (electrolytic) Stability Thermal stability |
| title | Safety improvement of lithium ion batteries by organo-fluorine compounds |
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