Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Nanostructured silicon/porous carbon spherical composite as a high capacity anode for Li-ion batteries | |
Shao, Dan1,2; Tang, Daoping1; Mai, Yongjin1; Zhang, Lingzhi1
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| 2013 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY A
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| Volume | 1Issue:47Pages:15068-15075 |
| Abstract | 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. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1039/c3ta13616g |
| WOS Subject Extended | Chemistry ; Energy & Fuels ; Materials Science |
| WOS Keyword | RECHARGEABLE LITHIUM BATTERIES ; POROUS SI/C COMPOSITES ; ELECTROCHEMICAL PERFORMANCE ; ELECTROANALYTICAL BEHAVIOR ; STORAGE PERFORMANCE ; GRAPHITE-ELECTRODES ; NEGATIVE ELECTRODES ; AMORPHOUS-SILICON ; NANOPARTICLES ; IMPEDANCE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000326984500033 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10104 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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