Recycling cobalt in spent lithium ion batteries to design CoN/HPCF/CoN electrocatalysts for advanced zinc–air batteries†
Abstract
Cobalt (Co) in spent lithium ion batteries was recycled to design a hollow and porous CoN/HPCF/CoN bifunctional electrocatalyst. It reveals superior rechargeable zinc–air battery performance (peak power density is 161.6 mW cm−2) with excellent stability.