Abstract: With the continuous expansion of power grid scale and the increasing penetration of new energy ources, the security risks facing power systems are becoming more complex. Large-scale lackouts may trigger cascading failures, severely impacting national economic stability and social order. In this context, black-start capability of electrochemical energy storage (EES) power stations stands out due to its unique flexibility and high efficiency. It offers extremely fast response, capable of delivering startup power instantly; flexible deployment near load centers; and significantly lower operating costs compared to traditional solutions, providing a more economical approach for grid restoration.This paper takes the successful black-start test at EES Station A as a case study, systematically reviewing the design logic of the test plan, full-process implementation details, and key technology applications. The feasibility of the solution is validated through on-site test data, offering practical insights for optimizing black-start strategies in the context of new power systems, and supporting the development of a safe and efficient grid emergency recovery framework.