Carbonaceous anode materials are widely used for a variety of applications in current electrochemical energy storage field. However, carbon nanospheres are much more difficult to be directionally assembled into self-supported arrays. In this paper, we demonstrate a facile and controlled strategy to effectively synthesize the hollow nickel microtube/carbon nanospheres core–shell arrays. The unique core–shell arrays structural is beneficial to electron conduction and structural stability of whole composite material as a binder-free electrode. The hollow nickel microtube/carbon nanospheres core–shell arrays exhibit good the reversible capacity, rate capability and a specific capacity of 148 mAhh g⁻¹ after 100 cycles by the effective improved of electrical conductivity and constructing open channels for Li ion diffusion.

碳质阳极材料广泛用于当前电化学能量存储领域中的各种应用。然而，碳纳米球要定向组装成自支撑阵列要困难得多。在本文中，我们展示了一种有效控制中空镍微管/碳纳米球核-壳阵列的简便且可控的策略。独特的核-壳阵列结构有利于整个复合材料作为无粘合剂电极的电子传导和结构稳定性。中空的镍微管/碳纳米球核-壳阵列表现出良好的可逆容量，倍率容量和148 mAhh g ^-1的比容量 经过100次循环后，有效地改善了电导率并为锂离子扩散建立了开放通道。