Abstract:
Taking the relevant literatures included in the Web of science core set database as the research object, and using the scientific knowledge map and Citespace III tools, the research progress and statistical analysis, frontier hotspots and evolution trends are focused on. The research results show that: New energy vehicles are hot research fields in the current academic circles, but most of the researchers are fighting each other, with only a few small research groups formed; Chinese and American researchers are researching in this field and their mainstay accounts for more than 50% of academic achievements. In the future, scientific research cooperation and contacts should be further strengthened among countries; hybrid electric vehicles will be the main direction of future research in the field of new energy vehicles; in the future, renewable energy, charging stations and lithium-ion batteries will receive more research and investment. International research has experienced three stages of evolution: the germination period, the adjustment period and the explosive growth period, with different research priorities in each stage.