Through patent search and analysis, this study investigated the application trends, geographical distribution of patent applications, global and Chinese applicant rankings, annual trends in patent applications by major applicants, and technological R&D hotspots in the field of battery thermal management technology for new energy vehicles. The results indicate that the number of related patent applications has maintained rapid growth. China has become the primary region for patent applications, with Chinese companies CATL and BYD ranking among the top globally in terms of patent application volume. South Korean company LG Energy Solution has emerged as the primary competitor to Chinese firms. Technologically, battery cooling has become the predominant research direction, while multi-circuit thermal management systems have become a key research hotspot . This research aims to provide references for the R&D and patent layout of battery thermal management technology for new energy vehicles in China.