2013 Fiscal Year Final Research Report
Catalyst-free formation of silicon nanowires and their application as anodes of lithium ion batteries
| Project/Area Number |
23510128
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | Mie University |
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Principal Investigator |
KOKAI Fumio 三重大学, 工学(系)研究科(研究院), 教授 (40345997)
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| Project Period (FY) |
2011 – 2013
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| Keywords | ケイ素 / 酸化ケイ素 / ナノワイヤー / レーザー蒸発 / 合成 / 構造解析 / リチウムイオン電池 |
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| Research Abstract |
Laser vaporization was performed using targets of silicon, silicon dioxide, and their mixture without the addition of metal catalysts. From the analysis of the laser-vaporization products, amorphous silicon oxide nanowires having silicon nanoparticles at their tips were found to be grown form silicon and mixed targets. We proposed a novel growth mechanism without the contribution of metal catalysts. We also evaluated the nanowires as an anode material of a next-generation lithium ion battery. The nanowires showed a promising high charge-discharge capacity.
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