Upcycling of spent LiCoO2: engineering the coordination-trapping behavior towards conversion-type anodes for advanced Li-storage

Abstract

Based on its high economic/sustainability value, the upcycling of spent cathodes into anodes has been deemed to be an alternative strategy to traditional chemical synthesis. Supported by an effective acid leaching and coordination-trapping self-assembly reaction, a nano-scale CoS@NSC anode was successfully prepared from spent LiCoO₂ and used as a promising anode for lithium ion batteries.