To target the low conductance and expansion issues of Si based anodes for Li-ion batteries, a 3D structural composite constructed by CNTs framework distributedly anchored with double-carbon coated silicon nanoparticles has been designed, fabricated and characterized. The crosslinked CNT framework provided electrical conductive pathway as well as void-space to accommodate the expansion of silicon nanoparticles. The double layered carbon coating was formed under the assistance of the sulfur sacrificing agent giving protection on the silicon particle surface. The Si/[email protected](S)-C electrodes exhibited a high reversible capacity of 943 mAhg⁻¹ after 1000 cycles at a C/5 rate. The excellent cycling performance is attributed to the unique structure which can stabilize the silicon particle during volume expansion and keep the electrical connection at the same time.

为了解决用于锂离子电池的硅基负极的低电导和膨胀问题，已经设计，制造和表征了由碳纳米管骨架构建的3D结构复合材料，该碳纳米管由分布在双碳涂层硅纳米颗粒上的锚固而成。交联的CNT框架提供了导电途径以及空隙空间，以适应硅纳米粒子的膨胀。在提供对硅颗粒表面的保护的硫牺牲剂的帮助下形成双层碳涂层。Si / [受电子邮件保护的]（S）-C电极表现出943 mAhg ^-1的高可逆容量在以C / 5速率循环1000次后。优异的循环性能归因于独特的结构，该结构可在体积膨胀期间稳定硅颗粒并同时保持电连接。