Nowadays, sodium-ion batteries (SIBs) have received extensive attention for their abundant resources and low price. Some quinone compounds have the advantages of high specific capacity, diverse structures, environmental friendliness and good redox reversibility, are ideal cathode materials. Calix[4]quinone (C4Q) with a high theoretical specific capacity of 446 mA h g⁻¹ is synthesized as cathodes, while it is still puzzled over low conductivity and high dissolution rate in organic electrolytes. In this study, a kind of economical and practical biocarbon-PPL with porous tubular structures is prepared by pyrolysis of Physalis Peruviana L. Calyx to immobilize C4Q in SIBs for the first time. The C4Q/PPL cathode presents an initial capacity of 435 mA h g⁻¹ with stable cyclability (195 mA h g⁻¹ after 100 cycles at 0.1 C) and great rate performance (170 mA h g⁻¹ at 1 C).

如今，钠离子电池（SIB）凭借其丰富的资源和低廉的价格受到了广泛的关注。一些醌类化合物具有比容量高，结构多样，环境友好和良好的氧化还原可逆性的优点，是理想的阴极材料。合成具有较高理论比容量446 mA hg ^-1的杯[4]醌（C4Q）作为阴极，但仍对低电导率和在有机电解质中的高溶解速率感到困惑。在本研究中，首次通过对酸浆（Peralis Peruviana L. Calyx）进行热解制备了一种具有多孔管状结构的经济实用的生物碳-PPL，首次将C4Q固定在SIBs中。C4Q / PPL阴极的初始容量为435 mA hg ^-1具有稳定的可循环性（在0.1 C下100次循环后为195 mA hg ^-1）和出色的速率性能（在1 C下为170 mA hg ^-1）。