A high energy density Li2S@C nanocomposite cathode with a nitrogen-doped carbon nanotube top current collector
文献类型：期刊论文
| 作者 | Zhang, S(张素); Liu, MN(刘美男); Ma, F; Ye, FM(叶方敏); Li, HF(李洪飞); Zhang, XY(张晓渝); Hou, Y(候远); Qiu, YC(邱勇才); Li, WF(李宛飞) ; Wang, J
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| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
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| 出版日期 | 2015 |
| 卷号 | 3期号:37页码:7 |
| 通讯作者 | Zhang, YG (张跃刚) |
| 英文摘要 | Lithium sulfide (Li2S), with a high theoretical capacity of 1166 mA h g(-1), is considered as one of the most promising cathode materials for the next-generation lithium-ion batteries. In this work, a novel cell configuration with a top current collector was designed for Li2S based batteries. The nitrogen-doped carbon nanotube (N-CNT) film was applied on top of the cathode, which serves not only as a top current collector but also as a barrier layer to effectively impede the polysulfide diffusion and enhance the utilization of active materials. A sheet-like Li2S@C nanocomposite was synthesized from low-cost and environmentally friendly raw materials of lithium sulfate (Li2SO4) and activated graphite. The as-prepared Li2S@C composites were directly used as cathode materials without adding any binder or carbon additive, which enabled a high Li2S loading up to 68% in the total cathode weight. The cells exhibited superior electrochemical performance. The specific energy at 0.5C was 804 W h kg(-1) based on the total electrode weight including the N-CNT top current collector, which is among the highest values demonstrated so far for sulfur and Li2S cathodes. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/3461]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_张跃钢团队 |
| 推荐引用方式 GB/T 7714 | Zhang, S,Liu, MN,Ma, F,et al. A high energy density Li2S@C nanocomposite cathode with a nitrogen-doped carbon nanotube top current collector[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(37):7. |
| APA | Zhang, S.,Liu, MN.,Ma, F.,Ye, FM.,Li, HF.,...&Zhang, YG.(2015).A high energy density Li2S@C nanocomposite cathode with a nitrogen-doped carbon nanotube top current collector.JOURNAL OF MATERIALS CHEMISTRY A,3(37),7. |
| MLA | Zhang, S,et al."A high energy density Li2S@C nanocomposite cathode with a nitrogen-doped carbon nanotube top current collector".JOURNAL OF MATERIALS CHEMISTRY A 3.37(2015):7. |
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