Deciphering Functional Differentiation of Elements in High-Entropy Spinel Oxides as Ultralong-Life Anode in Lithium-Ion Batteries

Key Points

• Investigate the specific roles of elements within high-entropy spinel oxides for energy storage applications.
• Synthesize high-entropy spinel oxide (CoCuMgCrFe)3O4 materials.
• Conduct electrochemical tests to evaluate anode performance.
• Analyze the influence of individual elements on battery characteristics.
• High-entropy spinel oxide demonstrated improved cycling stability and efficiency as an anode material.
• Elemental contributions varied significantly, affecting overall battery performance.
• Identification of optimal combinations for ultralong-life anodes.