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Nanostructured silicon/porous carbon spherical composite as a high capacity anode for Li-ion batteries
文献类型：期刊论文
| 作者 | Shao, Dan1,2; Tang, Daoping1; Mai, Yongjin1; Zhang, Lingzhi1
|
| 刊名 | journal of materials chemistry a
 |
| 出版日期 | 2013 |
| 卷号 | 1期号:47页码:15068-15075 |
| 英文摘要 | a nanostructured silicon/porous carbon spherical composite was prepared by a simple hydrothermal method using glucose as a carbon source and pluronic f127 as a soft template/pore forming agent in the presence of silicon nanoparticles, and a subsequent carbonization process. in this composite, silicon nanoparticles were individually and separately coated with a porous carbon shell with a thickness of 15-20 nm and a pore size of 3-5 nm. the composite electrode exhibited excellent cycling stability and rate capability, delivering a stable capacity of 1607 ma h g(-1) at a current density of 0.4 a g(-1) after 100 cycles, and a reversible capacity of 1050 ma h g(-1) even at a high current density of 10 a g(-1). detailed analysis of cyclic voltammetry and electrochemical impedance spectroscopy revealed that the composite showed favorable electrochemical kinetics due to the nano-sized porous carbon shell, which facilitated the formation of a solid electrolyte interface film and the transportation of li ions and electrons, and decreased the charge transfer resistance, thus significantly improving the electrochemical performance compared with the bare nano-si electrode. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; energy & fuels ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; energy & fuels ; materials science |
| 关键词[WOS] | rechargeable lithium batteries ; porous si/c composites ; electrochemical performance ; electroanalytical behavior ; storage performance ; graphite-electrodes ; negative electrodes ; amorphous-silicon ; nanoparticles ; impedance |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000326984500033 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/10104]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Dan,Tang, Daoping,Mai, Yongjin,et al. Nanostructured silicon/porous carbon spherical composite as a high capacity anode for Li-ion batteries[J]. journal of materials chemistry a,2013,1(47):15068-15075. |
| APA | Shao, Dan,Tang, Daoping,Mai, Yongjin,&Zhang, Lingzhi.(2013).Nanostructured silicon/porous carbon spherical composite as a high capacity anode for Li-ion batteries.journal of materials chemistry a,1(47),15068-15075. |
| MLA | Shao, Dan,et al."Nanostructured silicon/porous carbon spherical composite as a high capacity anode for Li-ion batteries".journal of materials chemistry a 1.47(2013):15068-15075. |
入库方式： OAI收割
来源：广州能源研究所
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