Nano-Sn/hard carbon composite anode material with high-initial coulombic efficiency
Nanoscaled tin (Sn) particles were embedded in the mesopores of hard carbon spherules (HCS) to form a composite anode material for lithium ion batteries. The structure of the obtained composite was characterized by X-ray diffraction (XRD) and the electrochemical performances were evaluated by galvan...
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| Veröffentlicht in: | Journal of power sources 2008-02, Vol.177 (1), p.205-210 |
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| container_title | Journal of power sources |
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| creator | Guo, Bingkun Shu, Jie Tang, Kun Bai, Ying Wang, Zhaoxiang Chen, Liquan |
| description | Nanoscaled tin (Sn) particles were embedded in the mesopores of hard carbon spherules (HCS) to form a composite anode material for lithium ion batteries. The structure of the obtained composite was characterized by X-ray diffraction (XRD) and the electrochemical performances were evaluated by galvanostatic cycling and cyclic voltammetry. It is found that embedding Sn nanoparticles into HCS not only results in a composite material with high-lithium storage capacity and capacity retention, but also increases the initial coulombic efficiency of the composite. Based on the infrared spectroscopic analysis, the enhanced initial coulombic efficiency is attributed to the nano-tin-induced decomposition of the ROCO
2Li species in the solid electrolyte interphase (SEI) layer. |
| doi_str_mv | 10.1016/j.jpowsour.2007.11.003 |
| format | Article |
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Electrical power engineering</subject><subject>Electrical power engineering</subject><subject>Electrochemical conversion: primary and secondary batteries, fuel cells</subject><subject>Exact sciences and technology</subject><subject>Hard carbon spherule</subject><subject>High-initial coulombic efficiency</subject><subject>Lithium ion battery</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Tin</subject><subject>Voltammetry</subject><issn>0378-7753</issn><issn>1873-2755</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkMFu2zAMhoVhBZa2e4XBl2G92BEl27JuHYquLRC0h3RnQaalRYFtZZLTIG8_pUnRW3ciQH4_SXyEfANaAIV6vi7WG7-LfhsKRqkoAApK-Scyg0bwnImq-kxmlIsmF6LiX8h5jGtKKYCgM7J81KPPl-N8pUOXoQ6tHzP0w8ZHN5ksDTuTDXoywek-27lpla3cn1XuRjcdOui3vR9ah5mx1qEzI-4vyZnVfTRfT_WC_P51-3xzny-e7h5ufi5yLKmY8pZ1ZVdWyDusy5a1WlM0JTBetnXDpLQcWYPcmqoRzFZleh7a2nZWWAALDb8gP457N8H_3Zo4qcFFNH2vR-O3UTWyZlwyKhJ59SEJaXcphWRVQusjisHHGIxVm-AGHfYKqDr4Vmv15lsdfCsAlXyn4PfTDR1R9zboEV18T0spRV1D4q6PnElqXpwJKr5qM50LBifVefe_U_8Aoj2ahw</recordid><startdate>20080215</startdate><enddate>20080215</enddate><creator>Guo, Bingkun</creator><creator>Shu, Jie</creator><creator>Tang, Kun</creator><creator>Bai, Ying</creator><creator>Wang, Zhaoxiang</creator><creator>Chen, Liquan</creator><general>Elsevier B.V</general><general>Elsevier Sequoia</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SU</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>7ST</scope><scope>SOI</scope></search><sort><creationdate>20080215</creationdate><title>Nano-Sn/hard carbon composite anode material with high-initial coulombic efficiency</title><author>Guo, Bingkun ; Shu, Jie ; Tang, Kun ; Bai, Ying ; Wang, Zhaoxiang ; Chen, Liquan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c407t-b2d4d45c3dc64b2baa0ce41234b68299f3c28c3fe5872f547531b6fdf7f11f183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Anodes</topic><topic>Applied sciences</topic><topic>Carbon</topic><topic>Composite</topic><topic>Composite materials</topic><topic>Diffraction</topic><topic>Direct energy conversion and energy accumulation</topic><topic>Electrical engineering. 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| ispartof | Journal of power sources, 2008-02, Vol.177 (1), p.205-210 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Anodes Applied sciences Carbon Composite Composite materials Diffraction Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Exact sciences and technology Hard carbon spherule High-initial coulombic efficiency Lithium ion battery Nanocomposites Nanomaterials Nanostructure Tin Voltammetry |
| title | Nano-Sn/hard carbon composite anode material with high-initial coulombic efficiency |
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