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Flexible naphthalene-based polyimide nanofiber cathode with hierarchical micro/nanoporous structure for high-performance organic sodium-ion batteries
Composites Communications ( IF 6.5 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.coco.2020.100490
Gangyong Zhou , Lulu Mo , Chunyang Zhou , Yan Lv , Yue-E Miao , Tianxi Liu

Abstract A flexible composite nanofibrous organic cathode, consisting of naphthalene-based polyimide/nitrogen-doped carbon/carbon nanotubes (NPI/NC/CNT) with hierarchical micro/nanoporous structure, is designed for sodium-ion batteries (SIBs). The in-situ formed three-dimensional conductive network can achieve a uniform distribution and increased interfacial contact between electroactive NPI and electrolyte, thereby leading to high utilization of NPI. As a result, the free-standing NPI/NC/CNT cathode delivers high reversible capacity, superior rate capability, and excellent cycling stability for SIBs.

中文翻译:

用于高性能有机钠离子电池的具有分级微/纳米孔结构的柔性萘基聚酰亚胺纳米纤维正极

摘要 为钠离子电池(SIBs)设计了一种柔性复合纳米纤维有机阴极,由具有分级微/纳米孔结构的萘基聚酰亚胺/氮掺杂碳/碳纳米管(NPI/NC/CNT)组成。原位形成的三维导电网络可以实现电活性NPI与电解质之间的均匀分布和增加的界面接触,从而导致NPI的高利用率。因此,独立的 NPI/NC/CNT 正极为 SIBs 提供了高可逆容量、优异的倍率性能和优异的循环稳定性。
更新日期:2020-12-01
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