Synthesis of nanoarchitectured LiNi0.5Mn0.5O2 spheres for high-performance rechargeable lithium-ion batteries via an in situ conversion route
LiNi0.5Mn0.5O2 nanoarchitectured spheres (NA-LiNi0.5Mn0.5O2) have been synthesized via an in situ conversion route derived from the use of [gamma]-MnO2 hollow nanostructured spheres. The complete conversion of the [gamma]-MnO2 precursor to layered [small alpha]-NaFeO2-type NA-LiNi0.5Mn0.5O2 has been...
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| Veröffentlicht in: | Journal of materials chemistry 2011, Vol.21 (28), p.10437-10441 |
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| container_issue | 28 |
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| container_title | Journal of materials chemistry |
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| creator | Liu, Yumin Chen, Bolei Cao, Feng Zhao, Xingzhong Yuan, Jikang |
| description | LiNi0.5Mn0.5O2 nanoarchitectured spheres (NA-LiNi0.5Mn0.5O2) have been synthesized via an in situ conversion route derived from the use of [gamma]-MnO2 hollow nanostructured spheres. The complete conversion of the [gamma]-MnO2 precursor to layered [small alpha]-NaFeO2-type NA-LiNi0.5Mn0.5O2 has been confirmed by XRD, FE-SEM, TEM, and HR-TEM. This NA-LiNi0.5Mn0.5O2 cathode exhibits a remarkable enhancement of rate performance compared with that of LiNi0.5Mn0.5O2 particles prepared by a conventional solid-state reaction method (SS-LiNi0.5Mn0.5O2). The batteries based on NA-LiNi0.5Mn0.5O2 retain a discharge capacity of 153.5 mA h g-1 (93% of the first discharge capacity) after 75 cycles. A specific discharge capacity of 121.9 mA h g-1 was retained at a rate of 3.2 C, which is about 70% of the capacity at a rate of 0.2 C. |
| doi_str_mv | 10.1039/c1jm10408j |
| format | Article |
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The complete conversion of the [gamma]-MnO2 precursor to layered [small alpha]-NaFeO2-type NA-LiNi0.5Mn0.5O2 has been confirmed by XRD, FE-SEM, TEM, and HR-TEM. This NA-LiNi0.5Mn0.5O2 cathode exhibits a remarkable enhancement of rate performance compared with that of LiNi0.5Mn0.5O2 particles prepared by a conventional solid-state reaction method (SS-LiNi0.5Mn0.5O2). The batteries based on NA-LiNi0.5Mn0.5O2 retain a discharge capacity of 153.5 mA h g-1 (93% of the first discharge capacity) after 75 cycles. A specific discharge capacity of 121.9 mA h g-1 was retained at a rate of 3.2 C, which is about 70% of the capacity at a rate of 0.2 C.</description><identifier>ISSN: 0959-9428</identifier><identifier>EISSN: 1364-5501</identifier><identifier>DOI: 10.1039/c1jm10408j</identifier><language>eng</language><subject>Conversion ; Discharge ; Lithium-ion batteries ; Nanocomposites ; Nanomaterials ; Nanostructure ; Precursors ; Transmission electron microscopy</subject><ispartof>Journal of materials chemistry, 2011, Vol.21 (28), p.10437-10441</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c259t-3cc690d4739c20e7b589c5466315658aaffad005c24817c9b328a315bbf31d6c3</citedby><cites>FETCH-LOGICAL-c259t-3cc690d4739c20e7b589c5466315658aaffad005c24817c9b328a315bbf31d6c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4021,27921,27922,27923</link.rule.ids></links><search><creatorcontrib>Liu, Yumin</creatorcontrib><creatorcontrib>Chen, Bolei</creatorcontrib><creatorcontrib>Cao, Feng</creatorcontrib><creatorcontrib>Zhao, Xingzhong</creatorcontrib><creatorcontrib>Yuan, Jikang</creatorcontrib><title>Synthesis of nanoarchitectured LiNi0.5Mn0.5O2 spheres for high-performance rechargeable lithium-ion batteries via an in situ conversion route</title><title>Journal of materials chemistry</title><description>LiNi0.5Mn0.5O2 nanoarchitectured spheres (NA-LiNi0.5Mn0.5O2) have been synthesized via an in situ conversion route derived from the use of [gamma]-MnO2 hollow nanostructured spheres. The complete conversion of the [gamma]-MnO2 precursor to layered [small alpha]-NaFeO2-type NA-LiNi0.5Mn0.5O2 has been confirmed by XRD, FE-SEM, TEM, and HR-TEM. This NA-LiNi0.5Mn0.5O2 cathode exhibits a remarkable enhancement of rate performance compared with that of LiNi0.5Mn0.5O2 particles prepared by a conventional solid-state reaction method (SS-LiNi0.5Mn0.5O2). The batteries based on NA-LiNi0.5Mn0.5O2 retain a discharge capacity of 153.5 mA h g-1 (93% of the first discharge capacity) after 75 cycles. A specific discharge capacity of 121.9 mA h g-1 was retained at a rate of 3.2 C, which is about 70% of the capacity at a rate of 0.2 C.</description><subject>Conversion</subject><subject>Discharge</subject><subject>Lithium-ion batteries</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Precursors</subject><subject>Transmission electron microscopy</subject><issn>0959-9428</issn><issn>1364-5501</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNpFkM1KxDAURoMoOI5ufILsBKFj0jRpspTBPxidhbouaXo7zdAmY5IOzEP4zlZGcHO_C9-5d3EQuqZkQQlTd4ZuB0oKIrcnaEaZKDLOCT1FM6K4ylSRy3N0EeOWEEpLwWfo-_3gUgfRRuxb7LTzOpjOJjBpDNDglX2zZMFf3TTWOY67DgJE3PqAO7vpsh2EaR-0M4ADmE6HDei6B9zb1NlxyKx3uNYpQbDT3d5qrB22DkebRmy820OIv0zwY4JLdNbqPsLVX87R5-PDx_I5W62fXpb3q8zkXKWMGSMUaYqSKZMTKGsuleGFEIxywaXWbasbQrjJC0lLo2qWSz11dd0y2gjD5ujm-HcX_NcIMVWDjQb6XjvwY6yUYJLLsqATeXskTfAxBmirXbCDDoeKkupXefWvnP0AGO12dg</recordid><startdate>2011</startdate><enddate>2011</enddate><creator>Liu, Yumin</creator><creator>Chen, Bolei</creator><creator>Cao, Feng</creator><creator>Zhao, Xingzhong</creator><creator>Yuan, Jikang</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>2011</creationdate><title>Synthesis of nanoarchitectured LiNi0.5Mn0.5O2 spheres for high-performance rechargeable lithium-ion batteries via an in situ conversion route</title><author>Liu, Yumin ; Chen, Bolei ; Cao, Feng ; Zhao, Xingzhong ; Yuan, Jikang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c259t-3cc690d4739c20e7b589c5466315658aaffad005c24817c9b328a315bbf31d6c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Conversion</topic><topic>Discharge</topic><topic>Lithium-ion batteries</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Precursors</topic><topic>Transmission electron microscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Yumin</creatorcontrib><creatorcontrib>Chen, Bolei</creatorcontrib><creatorcontrib>Cao, Feng</creatorcontrib><creatorcontrib>Zhao, Xingzhong</creatorcontrib><creatorcontrib>Yuan, Jikang</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Yumin</au><au>Chen, Bolei</au><au>Cao, Feng</au><au>Zhao, Xingzhong</au><au>Yuan, Jikang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of nanoarchitectured LiNi0.5Mn0.5O2 spheres for high-performance rechargeable lithium-ion batteries via an in situ conversion route</atitle><jtitle>Journal of materials chemistry</jtitle><date>2011</date><risdate>2011</risdate><volume>21</volume><issue>28</issue><spage>10437</spage><epage>10441</epage><pages>10437-10441</pages><issn>0959-9428</issn><eissn>1364-5501</eissn><abstract>LiNi0.5Mn0.5O2 nanoarchitectured spheres (NA-LiNi0.5Mn0.5O2) have been synthesized via an in situ conversion route derived from the use of [gamma]-MnO2 hollow nanostructured spheres. The complete conversion of the [gamma]-MnO2 precursor to layered [small alpha]-NaFeO2-type NA-LiNi0.5Mn0.5O2 has been confirmed by XRD, FE-SEM, TEM, and HR-TEM. This NA-LiNi0.5Mn0.5O2 cathode exhibits a remarkable enhancement of rate performance compared with that of LiNi0.5Mn0.5O2 particles prepared by a conventional solid-state reaction method (SS-LiNi0.5Mn0.5O2). The batteries based on NA-LiNi0.5Mn0.5O2 retain a discharge capacity of 153.5 mA h g-1 (93% of the first discharge capacity) after 75 cycles. A specific discharge capacity of 121.9 mA h g-1 was retained at a rate of 3.2 C, which is about 70% of the capacity at a rate of 0.2 C.</abstract><doi>10.1039/c1jm10408j</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of materials chemistry, 2011, Vol.21 (28), p.10437-10441 |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Conversion Discharge Lithium-ion batteries Nanocomposites Nanomaterials Nanostructure Precursors Transmission electron microscopy |
| title | Synthesis of nanoarchitectured LiNi0.5Mn0.5O2 spheres for high-performance rechargeable lithium-ion batteries via an in situ conversion route |
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