Trimetallic Metal?Organic Framework Nanoframe Superstructures: A Stress?Buffering Architecture Engineering of Anode Material toward Boosted Lithium Storage Performance

Metal-organic frameworks (MOFs) can serve as prevailing anodes for lithium-ion batteries, due to their multiple redox-active sites and prominent structural compatibility. However, the poor electronic conductivity inferior cyclability hinder further implementation. Herein, a synthetic methodology trimetallic Fe-Co-Ni MOFs with nanoframe superstructures architecture (Fe-Co-Ni NFSs) via evolution is proposed versatile anode materials lithium storage. Ascribed optimal compositional optimization, NFSs achieve exceptional electrochemical performance superior specific capacity (1030 mAh g?1 at 0.1 A g?1), outstanding rate (414 2 prolonged (489 upon 1000 cycles 1 g?1). Both experimental theoretical investigations reveal that multi-component metal centers could boost conductivity, confer active sites, energetically favor Li adsorption capability. Additionally, of facilitate stress-buffering effect on volumetric expansion prevent electrode pulverization, improving storage This work envisions meticulous protocol high-performance MOF batteries.