Electroactive organic compounds could bring new chemical opportunities to further improve existing electrochemical energy-storage technologies as they can be prepared from less-limited resources and potentially at low environmental footprint. Among the current explored research fields, the anion-ion cell configuration appears poorly investigated although quite promising to promote the fabrication of molecular (metal-free) rechargeable batteries. Herein, we report the synthesis and the electrochemical behavior of both Mg/Li salts of 2,5-(dianilino)terephthalate (MgDAnT and Li2 DAnT) and cross-linked polyviologen (c-PV2+ ) that can reversibly uptake/extract anions at different working potentials, enabling the assembly of full anionic organic batteries. The reversible anion ingress in MgDAnT is however accompanied by solvent co-insertion from the electrolyte that provokes an overpotential effect during the first charge. Full anionic batteries pairing Li2 DAnT with c-PV2+ were assembled giving rise to 0.7 V as output voltage with a specific capacity of 50 mAh per gram of Li2 DAnT.

中文翻译：

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将交联的聚紫罗兰与芳香胺主体结构配对，用于阴离子穿梭式可充电电池。

电活性有机化合物可以带来新的化学机遇，从而可以进一步改善现有的电化学储能技术，因为它们可以从较少的资源中制备，并且潜在的环境足迹较小。在当前探索的研究领域中，尽管对促进离子（无金属）可再充电电池的制造很有前景，但对阴离子-离子电池的配置研究似乎很少。在这里，我们报告的合成和电化学行为的Mg / Li盐的2,5-（二苯胺基）对苯二甲酸（MgDAnT和Li2 DAnT）和交联的聚紫精（c-PV2 +）可以可逆地摄取/提取不同阴离子工作电位，可以组装完整的阴离子有机电池。但是，MgDAnT中可逆的阴离子进入过程会伴随着电解质中溶剂的共插入，这会在首次充电时引起过电势效应。组装了完整的阴离子电池，将Li2 DAnT与c-PV2 +配对，从而产生0.7 V的输出电压，每克Li2 DAnT的比容量为50 mAh。