Details

Autor(en) / Beteiligte

• Zhang, Xupeng
• Liu, Yuying
• Shen, Pengfei
• Ren, Liqiu
• Han, Donglai
• Feng, Ming
• Wang, Heng‐Guo

Titel

Engineering an Artificial Coating Layer of Metal Porphyrin‐Based Porous Organic Polymers Toward High Stable Aqueous Zinc‐Ion Batteries

Ist Teil von

• Advanced functional materials, 2024-08, Vol.34 (33), p.n/a

Ort / Verlag

Hoboken: Wiley Subscription Services, Inc

Erscheinungsjahr

2024

Quelle

Wiley Online Library All Journals

Beschreibungen/Notizen

• Aqueous zinc‐ion batteries (AZIBs) possess high theoretical capacity and good safety, making them highly hopeful for large‐scale energy storage applications. Nevertheless, the uncontrolled growth of Zn dendrites on anode significantly reduces the cycle life of AZIBs. In this study, a series of porphyrin‐based porous organic polymers (CuTAPP‐NTCDA‐POP and ZnTAPP‐NTCDA‐POP) are synthesized using aminophenylporphyrin (TAPP) and aromatic dianhydride, which are served as porous protective coating layers for Zn anode. The coating effectively prevents the formation of Zn dendrites and guides the deposition of Zn2+ because of the abundance of zincophilic sites. As expected, the symmetric cells equipped with the optimum ZnTAPP‐NTCDA‐POP@Zn anode demonstrate a longer cycle life of over 1200 h at 0.5 mA cm−2 compared to bare Zn (64 h). Moreover, when the ammonium vanadate (NHVO) cathode is coupled with ZnTAPP‐NTCDA‐POP@Zn anode, the resulting full cell displays superior cycle stability that sustains over 350 cycles with a higher invertible capacity (225 mAh g−1 at 1 A g−1). This performance surpasses that of a full cell equipped with just a bare Zn anode. This work proposes a viable strategy to address Zn dendrites, presenting a promising horizon for the widespread application of AZIBs. A series of porphyrin‐based organic porous polymers (por‐POPs) with different linking groups and different center metals are synthesized and engineered as porous protective coating layers for the Zn anode for the first time. More electron delocalization and stronger zincophilic sites enable them to regulate Zn‐ion solvation chemistry, thus achieving high stable and reversible Zn anode, which will expand the application of por‐POPs in the field of energy storage.