new material: N-type polymer
P-type conducting polymers, exemplified by PEDOT, have demonstrated significant advancements in the field of electrolytic capacitors. However, they have encountered critical bottlenecks. Specifically, conducting polymers are mainly utilized for electron transport within electrolytic capacitors. The present applications of p-type conducting polymers, primarily responsible for hole transport, inherently leads to material de-doping or degradation during operation, consequently deteriorating the long-term reliability of the electrolytic capacitors. Here, we have developed a novel series of solid-state aluminum electrolytic capacitors and multi-layer polymer capacitors (MLPC) utilizing our advanced n-type conducting polymer, poly(benzodifurandione) (PBFDO), characterized by exceptional stability and high conductivity. This development poses a significant advancement in terms of capacitance, equivalent series resistance (ESR), and thermal stability. Relative to current market offerings, our capacitors exhibit a 20% enhancement in capacity, a 20% reduction in ESR, and a substantial improvement in high-temperature stability. These advancements are poised to offer promising opportunities for the next generation of electrolytic capacitors.