Bi₂Se₃ was studied as a novel sodium-ion battery anode material because of its high theoretical capacity and high intrinsic conductivity. Integrated with carbon, Bi₂Se₃/C composite shows excellent cyclic performance and rate capability. For instance, the Bi₂Se₃/C anode delivers an initial capacity of 527 mAh g⁻¹ at 0.1 A g⁻¹ and maintains 89% of this capacity over 100 cycles. The phase change and sodium storage mechanism are also carefully investigated.

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中文翻译：

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双2个硒3/ C纳米复合材料作为新型钠离子电池负极材料

Bi ₂ Se ₃由于具有较高的理论容量和较高的固有电导率而被研究为一种新型的钠离子电池负极材料。与碳结合，Bi ₂ Se ₃ / C复合材料显示出出色的循环性能和倍率性能。例如，Bi ₂ Se ₃ / C阳极在0.1 A g ^-1时提供527 mAh g ^-1的初始容量，并在100个循环中保持89％的容量。还仔细研究了相变和钠储存机理。

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