Negative electrode sodium injection device for sodium-sulfur battery

The utility model discloses a negative electrode sodium injection device for a sodium-sulfur battery and belongs to the field of chemical energy storage. The negative electrode sodium injection device comprises a glove box, wherein the glove box is internally fully filled with protective gas; the glove box is internally provided with a first high-frequency heating device, a transferring device, a laser welding gun and a negative electrode sealing cover; the first high-frequency heating device is internally provided with a sodium smelting tube; the glove box is internally provided with a second high-frequency heating device and a cooling device; the second high-frequency heating device is internally provided with a sodium storage tube with the sealed bottom; the cooling device is a cylinder; the inner diameter of the cylinder is equal to the outer diameter of the sodium storage tube. The cathode sodium injection device for the sodium-sulfur battery has the technical effects that a sodium injection process of a