Metal organic frameworks (MOFs) with the unique advantages of high surface area and easily controllable structure have attracted significant attention as electrode materials for various batteries. In this work, aluminum fumarate-based MOFs are prepared through complexation of fumaric acid with different aluminum salts. Interestingly, hierarchical tremella-like structured aluminum fumarates composed of intertangled ultrathin nanosheets are obtained using Al(NO₃)₃·9H₂O and AlCl₃·6H₂O as aluminum salts. When being used as the anode material for lithium-ion batteries, the aluminum fumarates MOFs deliver a considerably improved performance compared to the pristine organic fumaric acid. Excellent high-rate behavior and long-term cycling stability are obtained for the aluminum fumarate electrodes. At a current density of 37.5 mA g⁻¹, a reversible capacity of 392 mA h g⁻¹ is obtained without any capacity-fading up to 100 cycles. Even at an extremely high current density of 37.5 A g⁻¹, aluminum fumarate retains a capacity of 258 mA h g⁻¹. The electrochemical process of aluminum fumarate electrode is elucidated through in-depth electrochemical and spectroscopic studies. The low impedance, reversible lithiation/delithiation process, and structural stability of aluminum fumarate electrode during electrochemical cycling are found to be the main factors for its excellent lithium storage performance.

作为用于各种电池的电极材料，具有高表面积和易于控制的结构的独特优势的金属有机骨架（MOF）引起了广泛的关注。在这项工作中，通过富马酸与不同铝盐的络合制备了基于富马酸铝的MOF。有趣的是，使用Al（NO ₃）₃ ·9H ₂ O和AlCl ₃ ·6H ₂获得了由纠缠的超薄纳米片组成的分层银耳状结构富马酸铝。O为铝盐。与原始有机富马酸相比，富马酸铝MOF在用作锂离子电池的负极材料时，性能显着提高。富马酸铝电极具有出色的高倍率性能和长期循环稳定性。在37.5 mA g ^-1的电流密度下，可获得392 mA h g ^-1的可逆容量，而直到100个循环都没有任何容量衰减。即使在37.5 A g ^-1的极高电流密度下，富马酸铝仍可保持258 mA h g ^-1的容量。通过深入的电化学和光谱研究阐明了富马酸铝电极的电化学过程。富马酸铝电极的低阻抗，可逆锂化/脱锂过程以及电化学循环过程中的结构稳定性被认为是其优异的锂存储性能的主要因素。