Ionothermal synthesis and electrochemical analysis of Fe doped LiMnPO sub(4)/C composites as cathode materials for lithium-ion batteries
Shuttle shaped and Fe doped LiMnPO sub(4) particles are successfully synthesized via an ionothermal routine in 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [EMIM]OTf and 1-buty-3-methylimidazolium trifluoromethanesulfonate [BMIM]OTf at 260 [degrees]C, respectively. And then, the carbon coat...
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Veröffentlicht in: | Journal of alloys and compounds 2014-11, Vol.614, p.7-12 |
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creator | Li, Xueliang Liu, Shuai Jin, Hongchang Meng, Yu Liu, Yunfu |
description | Shuttle shaped and Fe doped LiMnPO sub(4) particles are successfully synthesized via an ionothermal routine in 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [EMIM]OTf and 1-buty-3-methylimidazolium trifluoromethanesulfonate [BMIM]OTf at 260 [degrees]C, respectively. And then, the carbon coated product of cathode materials can be efficiently prepared by a subsequent short calcination process. Scanning electron microscopy and field emission transmission electron microscopy shows that these as-prepared particles with the mean width of about 200 nm and length of 800 nm were coated by uniform carbon layers, which could improve the electronic conductivity of the final product effectively. The D sub(Li) values of samples that prepared in two ionic liquids above were calculated to be 1.36 x 10 super(-13) and 4.61 x 10 super(-14) cm super(2) s super(-1), respectively. It can be attributed to the LiMn sub(0.95)Fe sub(0.05)PO sub(4)/C particles prepared in [BMIM]OTf present more uniform distribution and smaller size. Thus, it deliver high discharge capacities of 159.2, 146.0, 135.1, 125.3, 115.5 and 84.4 mA h g super(-1) in the voltage range of 2.5-4.5 V at charge-discharge rate of 0.1, 0.2, 0.5, 1, 2 and 5 C, respectively. |
doi_str_mv | 10.1016/j.jallcom.2014.06.085 |
format | Article |
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And then, the carbon coated product of cathode materials can be efficiently prepared by a subsequent short calcination process. Scanning electron microscopy and field emission transmission electron microscopy shows that these as-prepared particles with the mean width of about 200 nm and length of 800 nm were coated by uniform carbon layers, which could improve the electronic conductivity of the final product effectively. The D sub(Li) values of samples that prepared in two ionic liquids above were calculated to be 1.36 x 10 super(-13) and 4.61 x 10 super(-14) cm super(2) s super(-1), respectively. It can be attributed to the LiMn sub(0.95)Fe sub(0.05)PO sub(4)/C particles prepared in [BMIM]OTf present more uniform distribution and smaller size. Thus, it deliver high discharge capacities of 159.2, 146.0, 135.1, 125.3, 115.5 and 84.4 mA h g super(-1) in the voltage range of 2.5-4.5 V at charge-discharge rate of 0.1, 0.2, 0.5, 1, 2 and 5 C, respectively.</description><identifier>ISSN: 0925-8388</identifier><identifier>DOI: 10.1016/j.jallcom.2014.06.085</identifier><language>eng</language><subject>Carbon ; Cathodes ; Coating effects ; Electronics ; Field emission ; Iron ; Lithium-ion batteries ; Particulate composites ; Scanning electron microscopy</subject><ispartof>Journal of alloys and compounds, 2014-11, Vol.614, p.7-12</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>315,781,785,27929,27930</link.rule.ids></links><search><creatorcontrib>Li, Xueliang</creatorcontrib><creatorcontrib>Liu, Shuai</creatorcontrib><creatorcontrib>Jin, Hongchang</creatorcontrib><creatorcontrib>Meng, Yu</creatorcontrib><creatorcontrib>Liu, Yunfu</creatorcontrib><title>Ionothermal synthesis and electrochemical analysis of Fe doped LiMnPO sub(4)/C composites as cathode materials for lithium-ion batteries</title><title>Journal of alloys and compounds</title><description>Shuttle shaped and Fe doped LiMnPO sub(4) particles are successfully synthesized via an ionothermal routine in 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [EMIM]OTf and 1-buty-3-methylimidazolium trifluoromethanesulfonate [BMIM]OTf at 260 [degrees]C, respectively. And then, the carbon coated product of cathode materials can be efficiently prepared by a subsequent short calcination process. Scanning electron microscopy and field emission transmission electron microscopy shows that these as-prepared particles with the mean width of about 200 nm and length of 800 nm were coated by uniform carbon layers, which could improve the electronic conductivity of the final product effectively. The D sub(Li) values of samples that prepared in two ionic liquids above were calculated to be 1.36 x 10 super(-13) and 4.61 x 10 super(-14) cm super(2) s super(-1), respectively. It can be attributed to the LiMn sub(0.95)Fe sub(0.05)PO sub(4)/C particles prepared in [BMIM]OTf present more uniform distribution and smaller size. Thus, it deliver high discharge capacities of 159.2, 146.0, 135.1, 125.3, 115.5 and 84.4 mA h g super(-1) in the voltage range of 2.5-4.5 V at charge-discharge rate of 0.1, 0.2, 0.5, 1, 2 and 5 C, respectively.</description><subject>Carbon</subject><subject>Cathodes</subject><subject>Coating effects</subject><subject>Electronics</subject><subject>Field emission</subject><subject>Iron</subject><subject>Lithium-ion batteries</subject><subject>Particulate composites</subject><subject>Scanning electron microscopy</subject><issn>0925-8388</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNjUFOwzAURL0AiVI4ApKXZZH020lde4kqCpWKyqL7yrF_FFdOHGJn0RtwbFLBAVjNSO9phpAnBjkDJpbn_Ky9N6HNObAyB5GDXN2QGSi-ymQh5R25j_EMAEwVbEa-d6ELqcGh1Z7GSzfV6CLVnaXo0aQhmAZbZyaqO-0vVxhqukVqQ4-W7t1H93mgcawW5fNyQ6fnPkSXcNqI1OjUBIu01QkHp32kdRiod6lxY5u50NFKpyvC-EBu60nAx7-ck-P29bh5z_aHt93mZZ_1QrAMFUdua61Bs7pimtsKoZR6DSViJRQYhRUUyHmJQmgupbG1sYaVIKBSopiTxe9sP4SvEWM6tS4a9F53GMZ4YmItAaRS7B8qB1DFWvHiB_5bdqE</recordid><startdate>20141125</startdate><enddate>20141125</enddate><creator>Li, Xueliang</creator><creator>Liu, Shuai</creator><creator>Jin, Hongchang</creator><creator>Meng, Yu</creator><creator>Liu, Yunfu</creator><scope>7SP</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>20141125</creationdate><title>Ionothermal synthesis and electrochemical analysis of Fe doped LiMnPO sub(4)/C composites as cathode materials for lithium-ion batteries</title><author>Li, Xueliang ; Liu, Shuai ; Jin, Hongchang ; Meng, Yu ; Liu, Yunfu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p661-e92e2dfaa0a1fb1a2dbe048a704eeb690c9eb03e224e66a288cdfcdc14060b963</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Carbon</topic><topic>Cathodes</topic><topic>Coating effects</topic><topic>Electronics</topic><topic>Field emission</topic><topic>Iron</topic><topic>Lithium-ion batteries</topic><topic>Particulate composites</topic><topic>Scanning electron microscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Xueliang</creatorcontrib><creatorcontrib>Liu, Shuai</creatorcontrib><creatorcontrib>Jin, Hongchang</creatorcontrib><creatorcontrib>Meng, Yu</creatorcontrib><creatorcontrib>Liu, Yunfu</creatorcontrib><collection>Electronics & Communications Abstracts</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 alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Xueliang</au><au>Liu, Shuai</au><au>Jin, Hongchang</au><au>Meng, Yu</au><au>Liu, Yunfu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ionothermal synthesis and electrochemical analysis of Fe doped LiMnPO sub(4)/C composites as cathode materials for lithium-ion batteries</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2014-11-25</date><risdate>2014</risdate><volume>614</volume><spage>7</spage><epage>12</epage><pages>7-12</pages><issn>0925-8388</issn><abstract>Shuttle shaped and Fe doped LiMnPO sub(4) particles are successfully synthesized via an ionothermal routine in 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [EMIM]OTf and 1-buty-3-methylimidazolium trifluoromethanesulfonate [BMIM]OTf at 260 [degrees]C, respectively. And then, the carbon coated product of cathode materials can be efficiently prepared by a subsequent short calcination process. Scanning electron microscopy and field emission transmission electron microscopy shows that these as-prepared particles with the mean width of about 200 nm and length of 800 nm were coated by uniform carbon layers, which could improve the electronic conductivity of the final product effectively. The D sub(Li) values of samples that prepared in two ionic liquids above were calculated to be 1.36 x 10 super(-13) and 4.61 x 10 super(-14) cm super(2) s super(-1), respectively. It can be attributed to the LiMn sub(0.95)Fe sub(0.05)PO sub(4)/C particles prepared in [BMIM]OTf present more uniform distribution and smaller size. Thus, it deliver high discharge capacities of 159.2, 146.0, 135.1, 125.3, 115.5 and 84.4 mA h g super(-1) in the voltage range of 2.5-4.5 V at charge-discharge rate of 0.1, 0.2, 0.5, 1, 2 and 5 C, respectively.</abstract><doi>10.1016/j.jallcom.2014.06.085</doi><tpages>6</tpages></addata></record> |
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subjects | Carbon Cathodes Coating effects Electronics Field emission Iron Lithium-ion batteries Particulate composites Scanning electron microscopy |
title | Ionothermal synthesis and electrochemical analysis of Fe doped LiMnPO sub(4)/C composites as cathode materials for lithium-ion batteries |
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