A V2O5 cathode for aqueous rechargeable Pb-ion batteries

Abstract

Aqueous rechargeable metal batteries (AMBs) have attracted great attention and have been regarded as a next-generation promising energy storage system. However, the high-activity metal anodes usually face side reactions, passivation, and hydrogen evolution reactions, which impede the development of high-performance AMBs. Here, we designed and assembled a Pb metal battery based on a highly reversible Pb metal anode and layered V₂O₅ cathode, which showed good electrochemical performance. This new-type battery will encourage more investigations for high-performance AMBs and open up an innovation pathway for traditional lead-acid batteries.