High-Energy Density Li-Ion Battery Cathode Using Only Industrial Elements.

ABSTRACT: Li-ion batteries are crucial for the global energy transition to renewables; however, their scalability is limited by the supply of key elements used in commercial cathodes (e.g., Ni, Mn, Co, P). Therefore, there is an urgent need for next-generation cathodes composed of widely available and industrially scalable elements. Here, we introduce a Li-rich cathode based on the known material Li₂FeS₂, composed of low-cost elements (Al, Fe, S) that are globally mined and refined at an industrial scale. The substitution of redox-inactive Al³⁺ for Fe²⁺ achieves remarkably high degrees of anion redox, which, in turn, yields high gravimetric capacity (≈450 mAh·g^-1) and energy density (≳1000 Wh·kg^-1). We show that Al³⁺ enable

SUBMITTER: Patheria ES 

PROVIDER: S-EPMC11926859 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature