Sodium-ion batteries (SIBs) and Sodium-ion capacitors (SICs) have great promise for large-scale energy storage. However, the mismatch of electrode kinetics and charge-storage capacity between anode and cathode materials remains a challenge. Here three-dimensional self-assembled MoS₂/SnS₂-reduced graphene oxide (MoS₂/SnS₂-RGO) anode material with fast Na-ion diffusion rate and pseudocapacitive charge storage has been successfully prepared via a facile hydrothermal method. With this particular structure, the Na-ion diffusion coefficient of MoS₂/SnS₂-RGO calculated by GITT achieves 5.53 × 10⁻⁷ cm² s⁻¹ during the desodiation process, which effectively improves the reaction kinetics for anode material. When tested against metal sodium in the potential window of 0.01–3.00 V, the optimized MoS₂/SnS₂-RGO delivers an excellent reversible capacity of 818.9 mA h g⁻¹ at a specific current of 100 mA g⁻¹ after 100 cycles and a superior rate capability of 555.4 mA h g⁻¹ at 2000 mA g⁻¹ over 500 cycles. So far, MoS₂/SnS₂-RGO possesses the highest reversible capacity among the reported anode materials. Furthermore, a SIC composed of optimized MoS₂/SnS₂-RGO anode and a CC cathode reaches a high specific energy of 113.9 W h kg⁻¹ at specific power of 561.25 W kg⁻¹. Similarly, a SIB consisted of the MoS₂/SnS₂-RGO anode and a Na₃V₂(PO₄)₃/C cathode displays the reversible discharge capacity of 56 mA h g⁻¹ at the high rates of 2 C.

钠离子电池（SIB）和钠离子电容器（SIC）具有大规模储能的广阔前景。但是，阳极和阴极材料之间的电极动力学和电荷存储能力的不匹配仍然是一个挑战。在这里，已经通过一种方便的水热方法成功地制备了具有快速的Na离子扩散速率和拟电容电荷存储的三维自组装MoS ₂ / SnS ₂还原氧化石墨烯（MoS ₂ / SnS ₂ -RGO）阳极材料。通过这种特殊的结构，GITT计算出的MoS ₂ / SnS ₂ -RGO的Na离子扩散系数达到5.53×10 ^-7  cm ²  s ^-1在脱氮过程中，有效地改善了阳极材料的反应动力学。当在0.01–3.00 V的电势窗口中针对金属钠进行测试时，经过100次循环和100 a g g ^-1的比电流，经过优化的MoS ₂ / SnS ₂ -RGO在100 mA g ^-1的比电流下可提供818.9 mA h g ^-1的出色可逆容量。在500个循环中，在2000 mA g ^-1时具有555.4 mA hg ^-1的优异速率能力。到目前为止，MoS ₂ / SnS ₂ -RGO具有报道的阳极材料中最高的可逆容量。此外，由优化的MoS ₂ / SnS ₂组成的SIC-RGO阳极和CC阴极在561.25 W kg ^-1的比功率下达到113.9 W h kg ^-1的高比能。类似地，由MoS ₂ / SnS ₂ -RGO阳极和Na ₃ V ₂（PO ₄）₃ / C阴极组成的SIB在2 C的高速率下显示出56 mA h g ^-1的可逆放电容量。