Zinc metal as anodes has been widely used for electrochemical energy storage devices using aqueous electrolytes, due to its cost effective, eco-friendliness, as well as low redox potential in aqueous solutions. However, Zn prefers to grow into plate-like structures that vertically stand on current collectors. They protrude toward separators or break during cycles, thereby provoking internal short circuit and/or poor cycling stability. Here, polypyrrole is exploited to manipulate the nucleation/growth of zinc via the interaction between –NH and Zn²⁺. The resultant Zn microplates grow nearly parallel to the current collector, effectively avoiding the negative effects. The performances of PPy-coated Zn as the anode are greatly improved, as demonstrated in symmetric PPy-coated Zn//PPy-coated Zn, PPy-coated Zn//active carbon and PPy-coated Zn//δ-MnO₂. Especially for PPy-coated Zn//active carbon, it can stably run at 5 A g⁻¹ for 12,000 cycles with a capacity retention of 96%. The results indicate the promising potential of conductive polymers in advanced zinc anodes.

金属锌作为阳极已被广泛用于使用水电解质的电化学能量存储设备，这是因为其具有成本效益，生态友好以及水溶液中的氧化还原电势低的优点。但是，Zn倾向于长成垂直竖立在集电器上的板状结构。它们会向隔板突出或在循环中破裂，从而引起内部短路和/或较差的循环稳定性。在这里，利用聚吡咯通过–NH和Zn ²⁺之间的相互作用来控制锌的形核/生长。所得的Zn微板几乎平行于集电器生长，有效避免了负面影响。聚吡咯涂覆的锌作为阳极的性能大大提高，如在对称的PPy涂层Zn //聚吡咯涂层Zn，表明聚吡咯涂层Zn //活性碳和聚吡咯涂层Zn //δ-的MnO ₂。特别是对于PPy涂层的Zn //活性炭，它可以在5 A g ^-1下稳定运行12,000个循环，容量保持率为96％。结果表明，导电聚合物在先进的锌阳极中具有广阔的发展前景。