Mapping collaborative dynamics and evolutionary trends in wireless power transfer for electric vehicles: A scientometric analysis

Wireless charging modules for electric vehicles play an important role in advancing sustainable urban transportation. This study investigated the social dynamics of research in this domain. We achieve this by analyzing the collaborative networks of authors and countries, evaluating the influence of prominent researchers and seminal works, and exploring the interactions between researchers. The main objective of this analysis is to project insights into the prevailing trends and advancements in this domain and to track research trends in Wireless Power Transfer (WPT) for Electric Vehicles (EV), identify key researchers and institutions, and measure the impact of publications through citation analysis. The findings of this study will help researchers and industries obtain a realistic picture of WPT technology. Analyzing all articles related to wireless power charging in electrical vehicles from Scopus publications spanning 2003 to 2024 resulted in the collection of 450 publications. After applying the defined selection criteria, such as relevance to the latest trends in WPT for electric vehicles, publication type, and quality of research, 327 articles were obtained. Furthermore, 327 articles were filtered to 127 from 2017 to 2024 for in-depth investigation. Collaboration patterns and research trends were analyzed using bibliometric methods and statistical tools such as co-authorship analysis, co-citation analysis, and citation network analysis. This analysis reveals a consistent increase in publications, indicating growing academic and industrial interest, and found significant regional variations in research focus, with unique scientific writing styles emerging in different countries. This research underscores the significance of international cooperation in accelerating advancements in WPT for electric vehicles and intends to promote innovation and collaboration in this important subject by providing useful knowledge for researchers, policymakers, and industry.