Development of n-type redox polymers and their application to organic anode-active materials

当聚酰亚胺在分子水平上被制成碳纳米复合层时，发现它们在单位重复单元上表现出优异的氧化还原能力。将聚酰亚胺/碳复合层放置在集电体上，得到可逆氧化还原反应，并将其应用于有机电池的负极储电过程。合成了多种具有极限密度的有机氧化还原活性中心的聚合物，并测定了它们作为阳极活性材料的基本性质。通过对传质过程的精确控制，实现了强化的电荷传递过程，实现了聚合物的快速大容量电荷存储。提出了一种具有良好离子迁移过程的电极活性材料的设计策略，可以显著减少电池中的电解液数量。

Polyimides were found to exhibit excellent redox capability per repeating unit when they were made into a carbon nanocomposite layer at a molecular level. The reversible redox reaction obtained by placing the polyimide/carbon composite layer on a current collector was applied to the charge-storage process of anodes in organic batteries. A variety of polymers with an ultimate density of organic redox-active sites were synthesized, and their basic properties as the anode-active materials were determined. Enhanced charge transfer process accomplished by the precise control of mass-transfer process led to rapid and large-capacity charge storage with the polymers. A design strategy of electrode-active materials with excellent ionic migration processes was proposed, which allowed significant reduction of the amount of electrolytes in batteries.