N-doped onion-like carbon coated Sn nanocapsules as advanced anode for lithium-ion batteries
N-doped onion-like carbon coated Sn nanocapsules as advanced anode for lithium-ion batteries
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DOI：
10.1016/j.matlet.2017.04.059
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发表时间：
2017-07
影响因子：
3
通讯作者：
Dandan Han;Shucong Xu;Junjun Li;Bao Liu;Gengxin Song;Zhendong Guo
中科院分区：
文献类型：
--
作者：
Dandan Han;Shucong Xu;Junjun Li;Bao Liu;Gengxin Song;Zhendong Guo
该工作报道了通过电弧放电法一锅合成氮掺杂洋葱状碳包覆锡纳米胶囊。由于Sn纳米颗粒、洋葱状碳壳和碳壳中N的掺杂的协同作用，纳米胶囊作为锂离子电池负极材料表现出良好的电化学性能，在1000次循环后表现出优异的循环稳定性，在0.1 A g−1时达到902.8 mA h g−1，并具有优异的倍率性能，在20 A g−1时平均可逆容量为428.6 mA h g−1。
This work reports the one-pot synthesis of N-doped onion-like carbon coated Sn nanocapsules by the arc discharge method. Due to the cooperation of the Sn nanoparticles, onion-like carbon shell and the doping of N in carbon shell, the nanocapsules show good electrochemical performance as anode materials for lithium ion batteries, exhibiting excellent cycling stability of 902.8 mA h g−1at 0.1 A g−1after 1000 cycles and bearing superior rate capability with average reversible capacity of 428.6 mA h g−1at 20 A g−1.