Electroplating synthesis and electrochemical properties of CNTs/(Ni-P)/Sn as anodes for lithium-ion batteries
Electroplating synthesis and electrochemical properties of CNTs/(Ni-P)/Sn as anodes for lithium-ion batteries
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锂离子电池负极CNTs/(Ni-P)/Sn的电镀合成及电化学性能
DOI：
10.1016/j.matlet.2019.04.098
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发表时间：
2019-09-01
影响因子：
3
通讯作者：
Ma, Zengsheng
中科院分区：
文献类型：
--
作者：
Luo, Zhenya;Peng, Meiling;Ma, Zengsheng
设计了一种无粘结剂的CNTs/（Ni-P）/Sn复合材料，并将其电镀在铜集流体上作为锂离子电池负极。研究了Ni-P合金对CNTs/Sn阳极物理和电化学性能的影响。XPS着重显示了Sn和Ni元素的合金化反应在Sn-CNTs电极表面形成了化学结合力。CNTs/（Ni-P）/Sn复合材料表现出优异的循环性能，100次循环后的可逆比容量为400 mAh g（1），远高于CNTs/Sn电极，在4 C下的倍率性能为372.3 mAh g（1）。实验证实了碳纳米管与镍磷合金结合的正向效应，从而保证了锡阳极电化学性能的显著提高。(C)2019爱思唯尔B. V.保留所有权利。
A kind of binder-free CNTs/(Ni-P)/Sn composites are designed and electroplated on Cu current collector as anodes for lithium-ion battery. The influence of the Ni-P alloys on the physical and electrochemical performance of the CNTs/Sn anode is examined. XPS emphatically exhibits the buildup of the chemical binding force at the surface of Sn-CNTs electrode formed by the alloying reaction of Sn and Ni elements. The CNTs/(Ni-P)/Sn composites exhibit remarkable cycle performances with a reversible specific capacity of 400 mAh g (1) after 100 cycles which is much higher than that of the CNTs/Sn electrodes, and deliver an excellent rate performance of 372.3 mAh g (1) at 4 C. The positive-going effect of combining CNTs with Ni-P alloys was experimentally established to ensure the significant improvement of the electrochemical performance for Sn anode. (C) 2019 Elsevier B.V. All rights reserved.