High valence Mo-doped Na3V2(PO4)3/C as a high rate and stable cycle-life cathode for sodium battery
NASICON-structure Na3V2(PO4)3 (NVP) is a potential cathode material for sodium ion battery, which is still confronted with low rate performance because of its poor conductivity. To address this problem, high-valance Mo6+ ion was introduced into NVP. The crystal structure, electrochemical performance...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018-01, Vol.6 (4), p.1390-1396 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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| creator | Li, Xiang Huang, Yangyang Wang, Jingsong Lin, Miao Li, Yuyu Liu, Yi Qiu, Yuegang Fang, Chun Han, Jiantao Huang, Yunhui |
| description | NASICON-structure Na3V2(PO4)3 (NVP) is a potential cathode material for sodium ion battery, which is still confronted with low rate performance because of its poor conductivity. To address this problem, high-valance Mo6+ ion was introduced into NVP. The crystal structure, electrochemical performances, sodium ion diffusion kinetics and ion transfer mechanism of high valence Mo-doped Na3−5xV2−xMox(PO4)3/C (0 < x < 0.04) were investigated. X-ray diffraction, electron microscopy and XPS data confirmed high purity NASICON phosphate phases. The Na ion diffusion process was identified through CV measurement, which clearly shows rapid sodium ion transportation in the Mo-doped NASICON materials. Moreover, DFT calculations proved that Na ion diffusion is promoted by Mo doping. Benefiting from the superior Na ion kinetics, Na2.9V1.98Mo0.02(PO4)3 exhibited a performance of 90 mA h g−1 at 10C and preserved 83.5% of the original capacity after 500 cycles. Our studies demonstrate that high-valence Mo doped Na3V2(PO4)3/C is a promising cathode material for sodium ion batteries with super-high rate capability and stable cycle life. |
| doi_str_mv | 10.1039/c7ta08970h |
| format | Article |
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To address this problem, high-valance Mo6+ ion was introduced into NVP. The crystal structure, electrochemical performances, sodium ion diffusion kinetics and ion transfer mechanism of high valence Mo-doped Na3−5xV2−xMox(PO4)3/C (0 < x < 0.04) were investigated. X-ray diffraction, electron microscopy and XPS data confirmed high purity NASICON phosphate phases. The Na ion diffusion process was identified through CV measurement, which clearly shows rapid sodium ion transportation in the Mo-doped NASICON materials. Moreover, DFT calculations proved that Na ion diffusion is promoted by Mo doping. Benefiting from the superior Na ion kinetics, Na2.9V1.98Mo0.02(PO4)3 exhibited a performance of 90 mA h g−1 at 10C and preserved 83.5% of the original capacity after 500 cycles. Our studies demonstrate that high-valence Mo doped Na3V2(PO4)3/C is a promising cathode material for sodium ion batteries with super-high rate capability and stable cycle life.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/c7ta08970h</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Batteries ; Cathodes ; Crystal structure ; Diffusion ; Electrochemistry ; Electrode materials ; Electron microscopy ; Ion diffusion ; Kinetics ; Sodium ; Sodium-ion batteries ; Transportation ; X-ray diffraction</subject><ispartof>Journal of materials chemistry. 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A, Materials for energy and sustainability</title><description>NASICON-structure Na3V2(PO4)3 (NVP) is a potential cathode material for sodium ion battery, which is still confronted with low rate performance because of its poor conductivity. To address this problem, high-valance Mo6+ ion was introduced into NVP. The crystal structure, electrochemical performances, sodium ion diffusion kinetics and ion transfer mechanism of high valence Mo-doped Na3−5xV2−xMox(PO4)3/C (0 < x < 0.04) were investigated. X-ray diffraction, electron microscopy and XPS data confirmed high purity NASICON phosphate phases. The Na ion diffusion process was identified through CV measurement, which clearly shows rapid sodium ion transportation in the Mo-doped NASICON materials. Moreover, DFT calculations proved that Na ion diffusion is promoted by Mo doping. Benefiting from the superior Na ion kinetics, Na2.9V1.98Mo0.02(PO4)3 exhibited a performance of 90 mA h g−1 at 10C and preserved 83.5% of the original capacity after 500 cycles. Our studies demonstrate that high-valence Mo doped Na3V2(PO4)3/C is a promising cathode material for sodium ion batteries with super-high rate capability and stable cycle life.</description><subject>Batteries</subject><subject>Cathodes</subject><subject>Crystal structure</subject><subject>Diffusion</subject><subject>Electrochemistry</subject><subject>Electrode materials</subject><subject>Electron microscopy</subject><subject>Ion diffusion</subject><subject>Kinetics</subject><subject>Sodium</subject><subject>Sodium-ion batteries</subject><subject>Transportation</subject><subject>X-ray diffraction</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9jjFPwzAUhC0EElXpwi-wxAJD6LPdOPaIKmiRCmUA1urFfmlShbjELlL_PUEgbrlvON0dY5cCbgUoO3VFQjC2gPqEjSTkkBUzq0__2ZhzNolxB4MMgLZ2xNyy2db8C1vqHPGnkPmwJ8-fUb3L65f17EZN5xwjR17_BHtMxLHzPCYsW-Lu6FrK2qYaEFMdPPEq9DwG3xw-eIkpUX-8YGcVtpEmfz5mbw_3r_NltlovHud3q2wrQaVMW-eHVy73nqQ2FnRRVaJ0ppSGNAoprMxnzqEjD0ILb7TIK1MgFFJZV6oxu_rt3ffh80AxbXbh0HfD5EaCAAsKTK6-AaP-VU8</recordid><startdate>20180101</startdate><enddate>20180101</enddate><creator>Li, Xiang</creator><creator>Huang, Yangyang</creator><creator>Wang, Jingsong</creator><creator>Lin, Miao</creator><creator>Li, Yuyu</creator><creator>Liu, Yi</creator><creator>Qiu, Yuegang</creator><creator>Fang, Chun</creator><creator>Han, Jiantao</creator><creator>Huang, Yunhui</creator><general>Royal Society of Chemistry</general><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>JG9</scope><scope>L7M</scope><scope>SOI</scope></search><sort><creationdate>20180101</creationdate><title>High valence Mo-doped Na3V2(PO4)3/C as a high rate and stable cycle-life cathode for sodium battery</title><author>Li, Xiang ; Huang, Yangyang ; Wang, Jingsong ; Lin, Miao ; Li, Yuyu ; Liu, Yi ; Qiu, Yuegang ; Fang, Chun ; Han, Jiantao ; Huang, Yunhui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g203t-69cd006c5dde2689067ff1bc8b28e6a1219254ccaced0161d8615f87a07239cb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Batteries</topic><topic>Cathodes</topic><topic>Crystal structure</topic><topic>Diffusion</topic><topic>Electrochemistry</topic><topic>Electrode materials</topic><topic>Electron microscopy</topic><topic>Ion diffusion</topic><topic>Kinetics</topic><topic>Sodium</topic><topic>Sodium-ion batteries</topic><topic>Transportation</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Xiang</creatorcontrib><creatorcontrib>Huang, Yangyang</creatorcontrib><creatorcontrib>Wang, Jingsong</creatorcontrib><creatorcontrib>Lin, Miao</creatorcontrib><creatorcontrib>Li, Yuyu</creatorcontrib><creatorcontrib>Liu, Yi</creatorcontrib><creatorcontrib>Qiu, Yuegang</creatorcontrib><creatorcontrib>Fang, Chun</creatorcontrib><creatorcontrib>Han, Jiantao</creatorcontrib><creatorcontrib>Huang, Yunhui</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Xiang</au><au>Huang, Yangyang</au><au>Wang, Jingsong</au><au>Lin, Miao</au><au>Li, Yuyu</au><au>Liu, Yi</au><au>Qiu, Yuegang</au><au>Fang, Chun</au><au>Han, Jiantao</au><au>Huang, Yunhui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High valence Mo-doped Na3V2(PO4)3/C as a high rate and stable cycle-life cathode for sodium battery</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2018-01-01</date><risdate>2018</risdate><volume>6</volume><issue>4</issue><spage>1390</spage><epage>1396</epage><pages>1390-1396</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>NASICON-structure Na3V2(PO4)3 (NVP) is a potential cathode material for sodium ion battery, which is still confronted with low rate performance because of its poor conductivity. To address this problem, high-valance Mo6+ ion was introduced into NVP. The crystal structure, electrochemical performances, sodium ion diffusion kinetics and ion transfer mechanism of high valence Mo-doped Na3−5xV2−xMox(PO4)3/C (0 < x < 0.04) were investigated. X-ray diffraction, electron microscopy and XPS data confirmed high purity NASICON phosphate phases. The Na ion diffusion process was identified through CV measurement, which clearly shows rapid sodium ion transportation in the Mo-doped NASICON materials. Moreover, DFT calculations proved that Na ion diffusion is promoted by Mo doping. Benefiting from the superior Na ion kinetics, Na2.9V1.98Mo0.02(PO4)3 exhibited a performance of 90 mA h g−1 at 10C and preserved 83.5% of the original capacity after 500 cycles. Our studies demonstrate that high-valence Mo doped Na3V2(PO4)3/C is a promising cathode material for sodium ion batteries with super-high rate capability and stable cycle life.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/c7ta08970h</doi><tpages>7</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Batteries Cathodes Crystal structure Diffusion Electrochemistry Electrode materials Electron microscopy Ion diffusion Kinetics Sodium Sodium-ion batteries Transportation X-ray diffraction |
| title | High valence Mo-doped Na3V2(PO4)3/C as a high rate and stable cycle-life cathode for sodium battery |
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