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Single-walled carbon nanotubes as stabilizing agents in red phosphorus Li-ion battery anodes

机译:单壁碳纳米管在红磷锂离子电池阳极中作为稳定剂

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Phosphorus boasts extremely high gravimetric and volumetric capacities but suffers from poor electrochemical stability with significant capacity loss immediately after the first cycle. We propose to circumvent this issue by mixing amorphous red phosphorus with single-walled carbon nanotubes. Employing a non-destructive sublimation–deposition method, we have synthesized composites where the synergetic effect between red phosphorus and single-walled carbon nanotubes allows for a considerable improvement in the electrochemical stability of battery anodes. In contrast to the average 40% loss of capacity after 50 cycles for other phosphorus–carbon composites in the literature, our material shows losses of just 22% under analogous cycling conditions.
机译:磷具有极高的重量和体积容量,但电化学稳定性差,在第一个循环后立即容量损失巨大。我们建议通过将无定形红磷与单壁碳纳米管混合来规避此问题。我们采用无损升华-沉积方法,合成了复合材料,其中红磷和单壁碳纳米管之间的协同作用可显着改善电池阳极的电化学稳定性。与其他磷碳复合材料在50次循环后平均40%的容量损失相比,我们的材料在类似的循环条件下仅损失22%。

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