The utility model provides high-capacity high-
voltage water-based
sodium-
ion battery energy storage equipment, which comprises a water-based
sodium-
ion battery cell, a high-
voltage storage battery and a high-
voltage storage battery, the current collecting assemblies are respectively connected to two opposite sides of all the water-based
sodium ion battery cells; and the supporting assemblies are connected between every two adjacent flow collecting assemblies in an abutting mode. The water-based
sodium ion battery cells and the current collecting assemblies are alternately arranged, supporting connection of the whole structure of the
battery pack is achieved through the supporting assemblies, the risk of
thermal runaway can be fundamentally reduced, safety and stability in the using process can be ensured even if a plurality of battery cells are assembled in series, and meanwhile the service life of the
battery pack is prolonged. The
battery pack has high strength through mutual cooperation between the current collecting
assembly and the supporting
assembly, so that the use effect is further improved, in addition, the overall thickness of the battery pack can be flexibly adjusted according to the
actual use scene, and the battery pack is convenient to use. Therefore, the device has the remarkable advantages of being stable in structure, high in use safety, wide in application range, flexible to adjust, low in production cost and the like.