In Situ Polarization Enables Dipole Alignment of α-Phase Polyamide 11 Nanoribbons for Breathable Triboelectric Textile

Triboelectric textiles have been extensively studied for wearable energy applications, including single-fiber power generation, humidity-resistant power generation, air-breakdown-based power generation, etc. However, intrinsic tribo-charge transfer in fiber- or textile-based triboelectric materials remains at a low level. Here, we propose a polarization strategy to enhance triboelectric performance using α-phase polyamide 11 nanoribbons. By employing a high-voltage electrostatic field during electrospinning, we achieve in situ polarization of polyamide 11, resulting in an 116% improvement in the performance of polyamide 11-based energy nonwovens. Additionally, we apply cold pressing to optimize the specific surface area and air permeability of the all-fiber-energy nonwoven, achieving a balance of high electrical performance and wearability. We further demonstrate applications of this nanofiber-based energy textile in wireless sensing and breathable energy insoles. This all-fiber performance enhancement strategy provides valuable insights for the development of high-performance triboelectric textiles in the future.