Electropolymerization reaction-driven 2,6-naphthalenediamine monomers to a multilayered sheet structure for ultralong cycling aqueous zinc-ion batteries

作者：Xie, Yishun; Su, Weilong; Hu, Qiong^*; Lai, Feiyan; Yan, Zhixiong; Huang, Guobao; Lu, Shaorong; Zhang, Xiaohui^*

来源：New Journal of Chemistry, 2022, 46(38): 18244-18250.

DOI：10.1039/d2nj03708d

• ELECTRODE MATERIALS
• CHALLENGES
• STRATEGIES
• NANOSHEETS
• CATHODE

Organic materials are attractive for energy storage due to their stable structure, environment-friendly nature and sustainability. In this work, a 2,6-naphthalenediamine (2,6-NAPD) monomer was first used as the cathode material in aqueous zinc-ion batteries (ZIBs). Electropolymerization by the initial electrode reaction eliminates energy consumption in the beforehand polymerization process and provides a simple method to synthesize polymeric cathode materials. The possible bond connection mode of 2,6-NAPD monomers was proposed using the C-13-nuclear magnetic resonance and Fourier-transform infrared spectra. Scanning electron microscopy shows that the irregular 2,6-NAPD monomers form multilayered sheets after long-term cycling. The 2,6-NAPD electrode delivers a specific capacity of 133.1 mA h g(-1) at 0.05 A g(-1) and excellent cycling stability with a capacity retention of 76.5% over 8000 cycles.

• 单位
  玉林师范学院; 桂林理工大学