Mao Zhang, Qianyang Li, Minhan Cheng, Jianwei Jing, Hua Deng
) and enhanced ion selectivity. This innovative design enables modulation of p/n characteristics simply by introducing different ion sources, without additional modifications. By weaving 24 pairs of p/n-type i-TE fibers, we successfully fabricated a TE textile capable of generating 4.9 V output voltage on the body surface, which exceeds the highest output voltage of 1.3 V reported for fiber-based TEGs. Moreover, through coating a hydrophobic Ecoflex layer, we realized low humidity-resistant i-TE operation without performance degradation and achieved prolonged output stability. The fabricated TE textile maintained nearly 100% voltage retention after 30 days of ambient exposure. This scalable manufacturing of i-TE fibers provides new inspiration for wearable low-grade energy harvesting technologies.