The Diffusion Mechanism Of Infratechnology In The E-mobility Industry

Electric vehicles have significant advantages in energy-saving,emission-reduction and substitution.Developing e-mobility industry has gradually become the strategic focus of various countries and the automotive industry.At present,many key technologies of the e-mobility industry have not yet been broken through,and there is still much room for the development of core technologies.Infratechnology is the key connector between science and the core technology,and clarifying the diffusion path of e-mobility industry infratechnology is of great significance to the core competitiveness of China’s e-mobility industry.This article uses the patent documents related to the e-mobility industry as a data carrier.first of all,on the basis of sorting out the research in related fields,the infratechnology of e-mobility industry is identified based on the close relationship between basic technology and scientific research and its key transition between science and core technology.Then topic analysis of the use(USE)field of the patent abstract part,and build a patent citation network by IPC classification number.The patent citation and social network analysis methods are used to analyze the citation network,and the results are compared with the subject analysis results to comprehensively determine the infratechnology diffusion path of the industry.Finally,an exponential random graph model is used to conduct an empirical analysis of the main technology,synergy effects,and network structure embedded factors in the diffusion process of e-mobility industry infratechnology to clarify the diffusion law of the infratechnology of the industry.The research results show that the e-mobility industry infratechnology has mainly spread to three areas: battery-related technology,charging pile technology,and motor controllers.The current research hotspots are mainly concentrated in the field of electrode materials.Electric energy storage and battery pack related technologies are the key technologies for the current e-mobility industry infratechnology flow.The diffusion of e-mobility industry infratechnology is mainly affected by factors such as main effects,synergistic effects,and network structure embedding.Technological value promotes the diffusion of infratechnology in the industry,while technological protection inhibits it;technological proximity,geographical proximity,and organizational proximity all promote the diffusion of infratechnology in the industry,the effect is most obvious;in terms of the embedded impact of the network structure,the closed triangle structure has a significant promotion effect on the diffusion of infratechnology.Finally,in accordance with the above research results,combined with the current development status of China’s electric vehicle industry,this article puts forward several policy suggestions for the development of China’s electric vehicle industry,with a view to providing decision-making basis for the development of the electric vehicle industry.