首页> 外文期刊>International Journal of Electrochemical Science >A Hybrid Si@C@CNT@C Anode by Anchoring Silicon Nanoparticles onto CNT for Enhancing Performance in Lithium Ion Battery
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A Hybrid Si@C@CNT@C Anode by Anchoring Silicon Nanoparticles onto CNT for Enhancing Performance in Lithium Ion Battery

机译:通过将硅纳米颗粒固定在CNT上来增强锂离子电池性能的混合Si @ C @ CNT @ C阳极。

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We develop a facile method to anchor commercially available silicon nanoparticles (SiNPs) onto carbonnanotube (CNT) and fabricate the SiNPs and CNT based composite (denoted as Si@C@CNT@C)through a living polymerization reaction combined with a carbonization process. Si@C@CNT@Cpossesses a structure in which carbon coated SiNPs are anchored onto CNT linked by a carbon layer toenhance electron transfer. Anchoring structure helps to restrain SiNPs aggregating, and carbon layer aswell as CNT network facilitates buffering the volume variation and stabilizing the SEI film. Hence, asan anode material for lithium ion batteries, Si@C@CNT@C demonstrates an improved initial dischargespecific capacity (~ 4162 mAhg-1) and coulombic efficiency (84%) as well as much enhanced rateperformance.
机译:我们开发了一种简便的方法,可通过活性聚合反应与碳化过程相结合,将市售的硅纳米颗粒(SiNPs)锚固到碳纳米管(CNT)上,并制造SiNPs和CNT基复合材料(称为Si @ C @ CNT @ C)。 Si @ C @ CNT @ Cpossesses是一种结构,其中碳涂层的SiNP被锚定在通过碳层连接的CNT上以增强电子传递。锚固结构有助于抑制SiNP的聚集,碳层以及CNT网络有助于缓冲体积变化并稳定SEI膜。因此,作为锂离子电池的负极材料,Si @ C @ CNT @ C表现出更高的初始放电比容量(〜4162 mAhg-1)和库仑效率(84%),以及更高的倍率性能。

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