Analysis of Korean Electric Vehicle Research Trends Using Patent Data Focusing on Network Analysis
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As reducing greenhouse gas emissions and responding to climate change have emerged as important global tasks, electric vehicles (EVs) are becoming increasingly important. While research on EVs is expanding, studies that systematically analyze the structural characteristics of EV technologies and the interaction between research topics remain limited. This study aims to identify the structural characteristics and key technologies of the EV network by conducting a network analysis in South Korea from 2011 to 2022. Specifically, the study utilizes structural indicators such as network density, transitivity, mean distance, and network diameter. Additionally, network centrality indicators such as degree, betweenness and closeness centrality were used. Theoretically, this study is meaningful because various indicators used in network analysis are applied to the EV field. Practically, it is expected to guide the establishment of long-term investment and support strategies in key areas for Korean EV-related policy formulation and industrial strategy development.
Abstract
As reducing greenhouse gas emissions and responding to climate change have emerged as important global tasks, electric vehicles (EVs) are becoming increasingly important. While research on EVs is expanding, studies that systematically analyze the structural characteristics of EV technologies and the interaction between research topics remain limited. This study aims to identify the structural characteristics and key technologies of the EV network by conducting a network analysis in South Korea from 2011 to 2022. Specifically, the study utilizes structural indicators such as network density, transitivity, mean distance, and network diameter. Additionally, network centrality indicators such as degree, betweenness and closeness centrality were used. Theoretically, this study is meaningful because various indicators used in network analysis are applied to the EV field. Practically, it is expected to guide the establishment of long-term investment and support strategies in key areas for Korean EV-related policy formulation and industrial strategy development.