24小时热门版块排行榜    

查看: 4386  |  回复: 98
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

victor417

铁杆木虫 (正式写手)


[资源] 锂硫电池不用铜箔与泡沫镍做集流体的原因,电化学原位生成Cu2S,NiS最新文献

An effective strategy is explored for the in situ generation of a Cu2S/tubular mesoporous carbon composite by exploiting the charge–discharge processes of a S/C composite on a copper-foil current collector. By studying the reaction mecha-nism, we discover that the dissolved polysulfide ions (from the reaction of pristine sulfur) and inserted Li+ are firmly anchored by the copper ions released from the copper foil, which forms insoluble CuxS intermediates in the mesopore channels of the carbon matrix. Moreover, the new electrochemically active CuxS intermediates are gradually converted to the final product, Cu2S, during subsequent cycles. The as-prepared Cu2S nanoparticles are highly dispersed throughout the tubular mesoporous carbon, and the Cu2S/C composite exhibits a high reversible capacity of 270 mAh g-1 at 0.2 C over 300 cycles, with the negligible capacity loss, when used as a cathode ma-terial for a lithium-ion battery. Furthermore, the composite shows an outstanding rate capability with a reversible capacity
of 225 mAh g-1 under a high rate of 10 C. This work provides a convenient platform for the controlled synthesis of metal sul-fides for lithium-storage applications.
回复此楼

» 本帖附件资源列表

  • 欢迎监督和反馈:小木虫仅提供交流平台,不对该内容负责。
    本内容由用户自主发布,如果其内容涉及到知识产权问题,其责任在于用户本人,如对版权有异议,请联系邮箱:xiaomuchong@tal.com
  • 附件 1 : In_Situ_Electrochemical_Generation_of_Mesostructured_Cu2S-C.pdf
  • 2014-02-20 09:32:35, 2.28 M

» 本帖已获得的红花(最新10朵)

» 猜你喜欢

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

淡溪风

新虫 (正式写手)


送红花一朵
非常感谢,受教了
97楼2017-07-28 11:30:49
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 99 个回答

牛@仔

铁杆木虫 (著名写手)


★★★★★ 五星级,优秀推荐

楼主,学习了,谢谢!
6楼2014-02-20 20:32:29
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
简单回复
2014-02-20 11:54   回复  
五星好评  顶一下,感谢分享!
想知道3楼
2014-02-20 13:04   回复  
五星好评  顶一下,感谢分享!
yachicat4楼
2014-02-20 14:04   回复  
五星好评  顶一下,感谢分享!
zxf9845楼
2014-02-20 16:06   回复  
五星好评  顶一下,感谢分享!
2014-02-20 20:35   回复  
五星好评  顶一下,感谢分享!
tb11952488楼
2014-02-20 21:33   回复  
五星好评  顶一下,感谢分享!
苏梳眠9楼
2014-02-20 23:28   回复  
五星好评  顶一下,感谢分享!
宝德10楼
2014-02-21 08:14   回复  
五星好评  顶一下,感谢分享!
nihao717111楼
2014-02-21 08:36   回复  
五星好评  顶一下,感谢分享!
drgonwang12楼
2014-02-21 09:10   回复  
五星好评  顶一下,感谢分享!
minihuaxue13楼
2014-02-21 09:19   回复  
五星好评  顶一下,感谢分享!
wolfnumber14楼
2014-02-21 10:25   回复  
五星好评  顶一下,感谢分享!
☆ 无星级 ★ 一星级 ★★★ 三星级 ★★★★★ 五星级
普通表情 高级回复(可上传附件)
信息提示
请填处理意见