Sodium-ion batteries are emerging as a sustainable solution to tackle the growing global energy demands. In this context, organic electrode materials complement such technologies as they are composed of earth-abundant elements. As organic anodes, sodium carboxylates exhibit promising applicability in a wide range of molecules. To harness the advantages of individual systems and to minimise their limitations, in this work, an approach to form binary mixtures of sodium carboxylates using one-pot, microwave-assisted synthesis is presented. The target mixtures were synthesised in 30 min with disodium naphthalene-2,6-dicarboxylate (Na-NDC) as a common constituent in all. Both components in all mixtures were shown to participate in the charge storage and had a considerable effect on the performance characteristics, such as specific capacity and working voltage, in half and full cell formats. This approach opens a new avenue for enabling organic materials to be considered as more competitive candidates in sodium-ion batteries and promote their use in other material classes to overcome their limitations.

中文翻译：

---

快速制备钠离子电池阳极羧酸钠二元混合物

钠离子电池正在成为解决日益增长的全球能源需求的可持续解决方案。在这方面，有机电极材料补充了此类技术，因为它们由地球上丰富的元素组成。作为有机阳极，羧酸钠在广泛的分子中表现出良好的应用前景。为了利用各个系统的优点并尽量减少其局限性，在这项工作中，提出了一种使用一锅微波辅助合成形成羧酸钠二元混合物的方法。以萘-2,6-二甲酸二钠 (Na-NDC) 作为共同成分，在 30 分钟内合成了目标混合物。所有混合物中的两种成分都参与电荷存储，并对半电池和全电池格式的性能特征（例如比容量和工作电压）有相当大的影响。这种方法开辟了一条新途径，使有机材料被视为钠离子电池中更具竞争力的候选材料，并促进其在其他材料类别中的使用以克服其局限性。