Abstract The cycle life of lead-carbon battery is greatly restricted by the hydrogen evolution reaction (HER) of lead-carbon electrode. Lead carbon composite, rather than the pure carbon additive, inhibits the HER effectively, and may also strengthen the connection between lead and carbon components of lead-carbon electrode, which contributes to the performance enhancement of lead-carbon battery. In this paper, a novel lead carbon (C/Pb) composite is prepared by electroless plating lead on the rice-husk-based hierarchical porous carbon. The as-prepared C/Pb composite significantly suppresses the HER, and enlarges the electrochemically active surface area of the lead-carbon electrode. As expected, the cycle life of lead carbon battery with the optimized C/Pb composite in negative electrode is >11 times of the blank one under high-rate partial state-of-charge (HRPSoC) operation. This performance improvement is attributed to the enhanced interface between lead and carbon, and the inhibition effect on HER of C/Pb composite.

中文翻译：

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优化铅碳复合材料以提高铅碳电池在HRPSoC运行下的性能

摘要 铅碳电极的析氢反应（HER）极大地限制了铅碳电池的循环寿命。铅碳复合材料，而不是纯碳添加剂，可以有效抑制HER，还可以加强铅碳电极中铅与碳组分的连接，有助于铅碳电池的性能提升。在本文中，通过在稻壳基分级多孔碳上化学镀铅制备了一种新型铅碳（C/Pb）复合材料。所制备的 C/Pb 复合材料显着抑制了 HER，并扩大了铅碳电极的电化学活性表面积。正如预期的那样，在负极采用优化的 C/Pb 复合材料的铅碳电池的循环寿命 > 在高速部分荷电状态 (HRPSoC) 操作下是空白的 11 倍。这种性能的提高归因于铅和碳之间的界面增强，以及 C/Pb 复合材料对 HER 的抑制作用。