Mechanical Homogenization Promoting Dual-Directional Upcycling of Layered Oxide Cathodes.

ABSTRACT: Upcycling is regarded as a sustainable and promising recycling solution for spent lithium-ion batteries (LIBs). However, current upcycling strategies such as converting Ni-lean to Ni-rich cathodes struggle to change the composition of the spent cathodes to meet the diverse market demands. In addition, the commonly employed molten-salts method requires tens of hours of high-temperature treatment, restricting its sustainability. Herein, this study reports an efficient, flexible dual-directional upcycling strategy to upcycle a broad family of layered oxide cathodes into fresh LiNi_xCo_yMn_zO₂ (NCM) cathodes with tailored Ni-contents-either increased or decreased-in just 4 h via mechanical homogenization pretreatment. This study confirms that the bulk d

SUBMITTER: Zhang N 

PROVIDER: S-EPMC12288807 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature