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baiye_2009

铁杆木虫 (正式写手)

[交流] Adv. Mater. 高容量、高倍率、长循环钠离子电池负极材料 已有4人参与

The design of the SnS2 -RGO hybrid structure for reversible storage of Na+ was based on the following materials principles:
1) a large interlayer spacing in the SnS2 structure benefi ting Na+ intercalation and diffusion, and more buffering space for beneficial adjustment the volume changes in the host during cycling;
2) fast collection and conduction of electrons through a highly conductive RGO network;
3) inhibition of Sn (NaxSn) aggregation during cycling by RGO after material hybridization.

The SnS2 -RGO anode delivered a high charge (desodiation) specific capacity of 630 mAh g−1 at 0.2 A g−1 , and more impressively, 544 mAh g−1 after a ten-fold increase in current density to 2 A g−1 . The electrode was also very stable to cycling; providing a nearly unvarying capacity of 500 mAh g−1 at 1 A g−1 even after 400 charge-discharge cycles.

http://onlinelibrary.wiley.com/d ... .201306314/abstract
Adv. Mater. 高容量、高倍率、长循环钠离子电池负极材料
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老老实实做事,踏踏实实做人
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haiyege

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恭喜恭喜  牛人啊  介绍投稿经验吧
2楼2014-03-28 10:45:50
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xmdxx1182

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这不就是吧锂电的材料用来搞钠电,有什么创新性?
3楼2014-03-28 11:31:14
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kingbacktony

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性能很好,膜拜,牛人
不求前生无怨,但求此生无悔!
4楼2014-03-29 08:29:19
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DearLuo

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To be the one.

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教养,学识,实践!
5楼2014-03-29 09:13:06
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xmdxx1182

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另外这么高容量,显然是置换反应了,也就是说几次循环以后,就变成无定形的材料了。那么那个层状结构有什么意义呢?因为循环以后就不可能再存在了。
6楼2014-03-29 10:24:00
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