Negative sodium capillary sheet for sodium-nickel chloride battery

A negative electrode sodium capillary sheet for a sodium-nickel chloride battery comprises a battery sleeve shell, a ceramic tube and capillary sheets, the ceramic tube is fixedly installed in the battery sleeve shell through the capillary sheets, the capillary sheets are attached to the ceramic tube, four arch-shaped parts are formed on the ceramic tube, correspondingly, the four mutually matched capillary sheets are arranged on the outer side of the ceramic tube in a sleeving mode, and the capillary sheets are arranged on the outer side of the ceramic tube in a sleeving mode. A capillary gap is formed between the inner surface of the capillary sheet and the outer wall of the ceramic tube, so that on one hand, the capillary sheet and the ceramic tube are convenient to assemble, and on the other hand, due to the capillary phenomenon of the capillary gap, sodium generated by a battery reaction can be well assisted to uniformly cover the outer surface of the beta ''-Al2O3 ceramic tube solid electrolyte; the den