In recent years, China has witnessed a notable acceleration in the industrialization of sodium-ion batteries, marked by swift progress within the sector. With the continuous refinement of battery safety standards, nail penetration tests—a critical method for evaluating the risk of internal short circuits in battery cells—have emerged as a key metric for assessing the safety of power batteries. Presently, sodium-ion battery technology is progressing at a rapid pace, with products evolving towards higher energy density and enhanced integration. In response, the Standardization Working Group for Lithium-ion Batteries and Similar Products, operating under the auspices of the Ministry of Industry and Information Technology, has initiated a specialized evaluation of nail penetration tests for sodium-ion batteries. This initiative entails conducting thorough safety verifications on products boasting varying energy densities, enabling companies to preemptively identify and rectify potential safety risks, refine product designs, and foster the uniform adoption of industry standards.