Anions in the electrolyte are usually ignored in conventional "rocking-chair" batteries because only cationic de-/intercalation is considered. An ingenious scheme combining LiMn_0.7Fe_0.3PO₄ (LMFP@C) and graphite as a hybrid cathode for lithium-ion batteries (LIBs) is elaborately designed in order to exploit the potential value of anions for battery performance. The hybrid cathode has a higher conductivity and energy density than any of the individual components, allowing for the co-utilization of cations and anions through the de-/intercalation of Li⁺ and PF₆⁻ over a wide voltage range. The optimal compound with a weight mix ratio of LMFP@C: graphite = 5: 1 can deliver the highest specific capacity of nearly 140 mA h/g at 0.1 C and the highest voltage plateau of around 4.95 V by adjusting the appropriate mixing ratio. In addition, cyclic voltammetry was used to investigate the electrode kinetics of Li⁺ and PF₆⁻ diffusion in the hybrid compound at various scan rates. In situ X-ray diffraction is also performed to further demonstrate the structural evolution of the hybrid cathode during the charge/discharge process.

在传统的“摇椅”电池中，电解液中的阴离子通常被忽略，因为只考虑了阳离子脱/嵌入。一个巧妙的方案结合 LiMn _0.7 Fe _0.3 PO ₄ (LMFP@C) 和石墨作为锂离子电池 (LIBs) 的混合阴极，以开发阴离子对电池性能的潜在价值。混合阴极具有比任何单个组件更高的电导率和能量密度，允许通过 Li ⁺和 PF ₆ ^-的脱嵌/嵌入来共同利用阳离子和阴离子在很宽的电压范围内。LMFP@C：石墨=5：1的重量混合比的最佳化合物可以通过调整适当的混合比，在0.1 C下提供接近140 mA h/g的最高比容量和4.95 V左右的最高电压平台。此外，循环伏安法用于研究Li ⁺和PF ₆ ^-在各种扫描速率下在杂化化合物中扩散的电极动力学。还进行了原位 X 射线衍射，以进一步证明混合阴极在充电/放电过程中的结构演变。