Structural Improvement of the Blatter Radical for High-Current Organic Batteries
Structural Improvement of the Blatter Radical for High-Current Organic Batteries
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DOI：
10.1021/acsaem.2c02559
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发表时间：
2022-12
影响因子：
6.4
通讯作者：
Adrian Saal;Lada Elbinger;Kristin Schreyer;Xhesilda Fataj;C. Friebe;U. Schubert
中科院分区：
文献类型：
--
作者：
Adrian Saal;Lada Elbinger;Kristin Schreyer;Xhesilda Fataj;C. Friebe;U. Schubert
提出了一种更短、更容易的合成路线，用于制备具有更高重量容量的基于布拉特自由基的交联聚合物。将该材料加工成电极膜，并通过循环伏安法和恒电流实验进行表征。研究了几种电解质混合物，以确定新材料的最佳条件。电极被用作硬币电池中的阴极材料vsactivated carbon，其中施加高达60 C的高电流，与1 C相比，容量保持率为24%。在长期实验中，该材料显示出有希望的稳定性，在5 C下1000次循环后容量保持率为99%。与先前报道的基于布拉特自由基的电极材料进行比较，以研究分子结构对电池性能的影响。
A shorter and more facile synthetic route for a cross-linked polymer based on the Blatter radical with a higher gravimetric capacity is presented. The material is processed in electrode films and characterized via cyclic voltammetry and galvanostatic experiments. Several electrolyte mixtures are investigated to identify optimal conditions for the new material. The electrodes are utilized as a cathode materialvsactivated carbon in coin cells, where high currents of up to 60 C are applied, with a capacity retention of 24% compared to 1 C. In long-term experiments, the material reveals a promising stability with a capacity retention of 99% after 1000 cycles at 5 C. A comparison with a previously reported Blatter radical-based electrode material is done to investigate the influence of the molecular structure on the battery performance.