Carbon‐anchored Sb nanoparticles as high‐capacity and stable anode for aqueous alkaline batteries

Antimony (Sb) holds a high theoretic capacity and suitable redox potential as promising anode for aqueous alkaline batteries (AABs). However, the uncontrollable nucleation SbO2− promiscuous water-induced side reactions severely degrade reversibility of Sb anode. Herein, carbon-anchored nanoparticles are constructed to induce uniform plating/stripping high-performance AABs. The experimental results reveal that enhanced interaction between carbon antimony well defective can significantly improve electrical conductivity decrease overpotential. Accordingly, as-prepared enables preferential plating rather than parasitic reactions. As result, cycle life A-Sb/CF is sustained over 500 cycles at 10 mA cm−2/2 mAh cm−2. Even 4 cm−2, this stably 225 cycles, which better Sb/CF counterpart. Furthermore, assembled Ni3S2@Ni(OH)2//A-Sb/CF full battery demonstrates 2.17 cm−2 stable cycles.