CuFeO₂-NiFe₂O₄ hybrid electrode for lithium-ion batteries with ultra-stable electrochemical performance.

ABSTRACT: Stable electrode materials with guaranteed long-term cyclability are indispensable for advanced lithium-ion batteries. Recently, delafossite CuFeO₂ has received considerable attention, due to its relative structural integrity and cycling stability. Nevertheless, the low conductivity of delafossite and its relatively low theoretical capacity prevent its use as feasible electrodes for next-generation batteries that require higher reversible capacities. In this work, we suggest a simple and straightforward approach to prepare CuFeO₂-NiFe₂O₄ by introducing Ni precursor into Cu and Fe precursor to form NiFe₂O₄, which exhibits higher capacity but suffers from capacity fading, through sol-gel process and subsequent heat treatments.

SUBMITTER: Cheong JY 

PROVIDER: S-EPMC9070757 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature