Organic electrode materials with superiorities of low price, structural diversity, abundant resources and renewability have been regarded as the promising candidates for rechargeable batteries. However, the poor electronic conductivity and strong solubility in aprotic electrolytes limit the applications for energy storage systems. Here, the ortho-di-sodium salts of tetrahydroxyquinone (o-Na₂C₆H₂O₆) was successfully designed via a facile salinization process. Benefitted from the salt formation, the o-Na₂C₆H₂O₆ electrode exhibits a potential electrochemical performance, when applied to lithium-ion batteries and potassium-ion batteries for the first time. For Li-ion batteries, it delivers a good reversible capacity of 141 mA h g⁻¹ over 100 cycles at 25 mA g⁻¹, outstanding rate performance of 55.0 mA h g⁻¹ at 5 A g⁻¹ rate and the long cyclability with a capacity decay of 0.0075% per cycle at 5 A g⁻¹ exceeding 2000 cycles. On the other hand, the o-Na₂C₆H₂O₆ also exhibits a high reversible capacity of 168.1 mA h g⁻¹ under the current density of 25 mA g⁻¹, good rate performance (26.7 mA h g⁻¹ at 5 A g⁻¹ rate) in the K-ion cells. This finding might offer an effective insight to develop other organic salt materials for lithium-ion and potassium-ion batteries.

具有价格低廉，结构多样，资源丰富和可更新的优势的有机电极材料已被认为是可再充电电池的有前途的候选者。然而，不良的电子传导性和在非质子电解质中的强溶解性限制了能量存储系统的应用。在这里，通过简单的盐化过程成功地设计了四羟基醌的邻二钠盐（邻-Na ₂ C ₆ H ₂ O ₆）。得益于成盐作用，o -Na ₂ C ₆ H ₂ O ₆首次应用于锂离子电池和钾离子电池时，该电极表现出潜在的电化学性能。对于锂离子电池，它在25 mA g ^-1的100个循环中可提供141 mA h g ^-1的良好可逆容量，在5 A g ^-1的速率下具有出色的55.0 mA h g ^-1的倍率性能，并且循环寿命长在超过2000个循环的5 A g ^-1下，每个循环的容量衰减为0.0075％。另一方面，在25 mA g的电流密度下，o- Na ₂ C ₆ H ₂ O ₆也表现出168.1 mA h g ^-1的高可逆容量^-1，在K离子电池中具有良好的速率性能（在5 A g ^-1速率下为26.7 mA h g ^-1）。这一发现可能为开发用于锂离子和钾离子电池的其他有机盐材料提供有效的见识。