Interconnected dual-doped polyaniline with enhanced kinetics for high-rate zinc-ion batteries

Dual-doped PANI via synergistic ALS/H ₂ SO ₄ engineering builds a conductive porous network with abundant active sites, enabling rapid Zn ²⁺ diffusion and charge transfer. PANI-A-H delivers 267.6 mA h g ⁻¹ with 91.1% retention after 5000 cycles.