Abstract Sodium-ion batteries (SIBs) have recently drawn great interest as an alternative due to their lower cost compare to lithium-ion batteries (LIBs). As in the practical application in LIBs manufacturing, Cu and Al foils are generally used as the current collectors for the anode and cathode of SIBs respectively. The concern for amorphous Li-Al alloy formation at ∼0.2 V is the main reason for selecting a different metallic (i.e. Cu) current collector. However, it is not the case for the SIBs since Na-Al alloys are formed at much lower potentials. In this paper, we demonstrate that the electrochemistry of SIBs allows an Al current collector to be used for the SIB anode without any adverse effect. The cell performance using a high capacity Sb2S3-reduced graphene oxide (Sb2S3-rGO) composite anode is undistinguishable between the use of Cu and Al current collectors. The reversible storage of Na+ in this Sb2S3-rGO composite is evaluated on both Cu-foil and Al-foil current collectors and comparable results are obtained: high desodiation specific capacities of ∼555 mAh g−1 (on Al-foil current collector) and 537 mAh g−1 (on Cu-foil current collector) for 70 cycles at 100 mA g−1. Therefore, the Al current collector can replace Cu in SIBs, which simplifies the construction of SIB cells and reduces the material cost in SIB production.

中文翻译：

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Sb2S3-rGO 用于铝和铜箔集流体上的高性能钠离子电池负极

摘要 钠离子电池 (SIB) 作为替代品最近引起了极大的兴趣，因为与锂离子电池 (LIB) 相比，它们的成本更低。在LIBs制造的实际应用中，通常使用Cu和Al箔分别作为SIBs阳极和阴极的集流体。对在 ~0.2 V 下形成非晶 Li-Al 合金的担忧是选择不同金属（即 Cu）集电器的主要原因。然而，SIB 的情况并非如此，因为 Na-Al 合金是在低得多的电位下形成的。在本文中，我们证明了 SIB 的电化学允许将铝集流体用于 SIB 阳极而不会产生任何不利影响。使用高容量 Sb2S3 还原氧化石墨烯 (Sb2S3-rGO) 复合阳极的电池性能在使用 Cu 和 Al 集电器之间无法区分。在铜箔和铝箔集电器上评估了这种 Sb2S3-rGO 复合材料中 Na+ 的可逆存储，并获得了可比较的结果：~555 mAh g-1 的高脱钠比容量（在铝箔集电器上）和537 mAh g-1（在铜箔集电器上），在 100 mA g-1 下循环 70 次。因此，Al集流体可以替代SIBs中的Cu，简化了SIB电池的构建，降低了SIB生产中的材料成本。555 mAh g-1（在铝箔集电器上）和 537 mAh g-1（在铜箔集电器上）的高脱钠比容量，在 100 mA g-1 下循环 70 次。因此，Al集流体可以替代SIBs中的Cu，简化了SIB电池的构建，降低了SIB生产中的材料成本。555 mAh g-1（在铝箔集电器上）和 537 mAh g-1（在铜箔集电器上）的高脱钠比容量，在 100 mA g-1 下循环 70 次。因此，Al集流体可以替代SIBs中的Cu，简化了SIB电池的构建，降低了SIB生产中的材料成本。