Interface Chemistry Engineering of Protein- Directed SnO 2 Nanocrystal- Based Anode for Lithium- Ion Batteries with Improved Performance
文献类型：期刊论文
| 作者 | Jin, J (靳健) ; Wang, D (王栋)
|
| 刊名 | SMALL
 |
| 出版日期 | 2014 |
| 卷号 | 10期号:5页码:998-1007 |
| 关键词 | interfaces SnO2 nanocrystals lithium-ion battery |
| 通讯作者 | Jin, J (靳健) |
| 英文摘要 | A novel uniform amorphous carbon-coated SnO2 nanocrystal (NCs) for use in lithium-ion batteries is formed by utilizing bovine serum albumin (BSA) as both the ligand and carbon source. The SnO2-carbon composite is then coated by a controlled thickness of polydopamine (PD) layer through in situ polymerization of dopamine. The PD-coated SnO2-carbon composite is finally mixed with polyacrylic acid (PAA) which is used as binder to accomplish a whole anode system. A crosslink reaction is built between PAA and PD through formation of amide bonds to produce a robust network in the anode system. As a result, the designed electrode exhibits improved reversible capacity of 648 mAh/g at a current density of 100 mA/g after 100 cycles, and an enhanced rate performance of 875, 745, 639, and 523 mAh/g at current densities of 50, 100, 250, and 500 mA/g, respectively. FTIR spectra confirm the formation of crosslink reaction and the stability of the robust network during long-term cycling. The great improvement of capacity and rate performance achieved in this anode system is attributed to two stable interfaces built between the active material (SnO2-carbon composite) and the buffer layer (PD) and between the buffer layer and the binder (PAA), which effectively diminish the volume change of SnO2 during charge/discharge process and provide a stable matrix for active materials. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000332343400022 |
| 公开日期 | 2015-02-03 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/1783]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米仿生研究部_靳健团队 |
| 通讯作者 | Jin, J (靳健) |
| 推荐引用方式 GB/T 7714 | Jin, J ,Wang, D . Interface Chemistry Engineering of Protein- Directed SnO 2 Nanocrystal- Based Anode for Lithium- Ion Batteries with Improved Performance[J]. SMALL,2014,10(5):998-1007. |
| APA | Jin, J ,&Wang, D .(2014).Interface Chemistry Engineering of Protein- Directed SnO 2 Nanocrystal- Based Anode for Lithium- Ion Batteries with Improved Performance.SMALL,10(5),998-1007. |
| MLA | Jin, J ,et al."Interface Chemistry Engineering of Protein- Directed SnO 2 Nanocrystal- Based Anode for Lithium- Ion Batteries with Improved Performance".SMALL 10.5(2014):998-1007. |
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