SCAN-CPM-Based Industry Emerging Technology Identification and Evolution Path Analysis：Taking the New Energy Automobile Industry as an Example postprint

Abstract: [Purpose/Significance] Emerging industrial technologies have a major role in creating or changing the economic structure and development direction of traditional industries. It has important strategic and practical guiding significance for industrial development and reform to identify emerging industrial technologies in a timely and accurate manner and clarify the appropriate development direction. [Method/Process] According to the patent IPC classification information, this paper built an IPC node network, used the structural clustering algorithm for networks (SCAN) to identify industrial clusters and emerging technologies, and analyzed them in detail; then based on the time-series data of the five identified emerging technology patents, it constructed a patent node network and performed CPM to realize critical path analysis under the field of different emerging technologies, making the recognition results more microscopic and refined. Finally, taking the new energy automobile industry as an example, it obtained patent information from INCOPAT patent database for empirical analysis. [Result/Conclusion] Analysis based on SCAN-CPM is a useful supplement to the traditional emerging technology identification method. It displays the technology evolution path from large to small, from coarse to detailed, and provides a new perspective and technical means for comprehensively identifying emerging technologies and detecting technology evolution paths. The empirical analysis finds that: the internal design and external layout of charging piles for new energy vehicles are still the top priority for the development of the industry. Thermal management technology has increasingly become a relatively independent technical field. It is an important technical support for the new energy automobile industry to achieve overtaking on a curve. The evolution and diffusion path is clear. The technical issues such as battery pack environment, motor heat dissipation, battery liquid cooling technology, and heat exchanger materials are important breakthroughs and innovation points in the future. The motor drive control system currently forms a relatively high patent barrier.