A high energy density Li2S@C nanocomposite cathode with a nitrogen-doped carbon nanotube top current collector

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院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

	A high energy density Li2S@C nanocomposite cathode with a nitrogen-doped carbon nanotube top current collector
	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
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	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
内容类型	期刊论文
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.