This paper presents a study on a novel porous polymer based on triphenylamine (LPCMP) as an excellent cathode material for lithium-ion batteries. Through structural design and a scalable post-synthesis approach, improvements in intrinsic conductivity, practical capacity, and redox potential in an organic cathode material is reported. The designed cathode achieves a notable capacity of 146 mAh g⁻¹ with an average potential of 3.6 V, using 70% active material content in the electrode. Additionally, through appropriate structural design, the capacity can increase to 160 mAh g⁻¹. Even at a high current density of 20 A g⁻¹ (360C), the cathode maintains a capacity of 74 mAh g⁻¹, enabling full charge within 10 s. A high specific energy density of 569 Wh kg⁻¹ (at 0.1 A g⁻¹) is combined with a very high power density of 94.5 kW kg⁻¹ (at 20 A g⁻¹ corresponding to a specific energy density of 263 Wh kg⁻¹) surpassing the power density of graphene-based supercapacitors. It exhibits highly stable cyclic performance across various current densities, retaining almost 95% of its initial capacity after 1000 cycles at 5.5C. This work presents a significant breakthrough in developing high-capacity, high-potential organic materials for sustainable, high-energy, and high-power lithium-ion batteries.

中文翻译：

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基于三苯胺的共轭微孔聚合物作为下一代有机正极材料


本文介绍了一种基于三苯胺 （LPCMP） 的新型多孔聚合物作为锂离子电池的优良正极材料的研究。通过结构设计和可扩展的合成后方法，报道了有机正极材料中本征电导率、实用容量和氧化还原电位的改进。设计的阴极实现了 146 mAh g⁻¹ 的显着容量，平均电位为 3.6 V，电极中使用了 70% 的活性材料。此外，通过适当的结构设计，容量可以增加到 160 mAh ^g-1。即使在 20 A g⁻¹ （360C） 的高电流密度下，阴极也能保持 74 mAh g⁻¹ 的容量，可在 10 秒内充满电。569 Wh kg⁻¹（0.1 A g⁻¹ 时）的高比能量密度与 94.5 kW kg⁻¹ 的极高功率密度（20 A g⁻¹ 对应于 263 Wh kg⁻¹ 的比能量密度）相结合，超过了石墨烯基超级电容器的功率密度。它在各种电流密度下表现出高度稳定的循环性能，在 5.5C 下循环 1000 次后仍保持近 95% 的初始容量。这项工作在开发用于可持续、高能量和高功率锂离子电池的高容量、高潜力有机材料方面取得了重大突破。