Abstract
In order to gain a comprehensive view of electric vehicles (EVs) technologies and understand the emphasis of current research, this study evaluated the most relevant themes related to EVs through a bibliometric analysis using the keyword “electric vehicle” as the input. The Web of ScienceTM (WoS) database was used because it is considered ideal for bibliometric analysis. The VOSviewer software was adopted as a bibliometric analysis tool to visualize the networks of authors, countries, journals and keywords. The analysis carried out on 9 November 2021 retrieved a total of 29,304 documents in the period 2000 to 2021. The results show that in the last nine years the number of publications about EVs has grown significantly. The China is the leading nation in the field of EV research, contributing the largest number of publications in the world, with the main authors and research institutions involved. The journal Energies stands out as the main publishing periodical. Keyword analysis showed that studies on EVs in the last two decades have focused on themes related to energy management and storage, infrastructure and charging systems and environmental issues. The bibliometric analysis presented provides relevant information on the main themes studied about EVs and technological advances in development.
Highlights
In the last years, there has been a significant increase in the purchase of electric vehicles (EVs) on the world market [1]
The analAs already mentioned, the search in the Web of ScienceTM (WoS) database retrieved 29,304 publications on ysis reveals that between the years 2000 and 2011 there was a slow growth on the number
The analysis from 662 (2011) to 1149 (2012) presented works. One explanation for this phenomenon is reveals that between the years 2000 and 2011 there was a slow growth on the number of that between 2009 and 2011, incentive policies for the revitalization of the automobile inrelated EVs publications, and from 2012 on the number increases quite fast, jumping from dustries were implemented in several countries
Summary
There has been a significant increase in the purchase of electric vehicles (EVs) on the world market [1]. There are currently more than 10 million EVs registered in the world, and it is expected that by 2050 there will be approximately 300 million EVs in use, corresponding to 60% of new vehicle sales. Data recorded in 2021 indicate strong sales growth in the main automobile markets. This same year (2021) was marked by goals implemented by governments of several countries, the main objective being to reduce to zero by 2050 the emission of greenhouse gases (GHG), with the removal of internal combustion vehicles (ICVs) from the market
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