基于文献计量的新能源汽车研究协同度分析

Synergy Analysis of Research on New Energy Vehicles Based on Bibliometrics

本文基于1992年以来WOS核b合集收录的6194篇新能源汽车相关论文,筛选出研究主题词,建立研究时区图谱,进行研究方向对比及硏究深度剖析;在此基础上筛选出279篇中国新能源汽车相关高水平论文,提出文献评估标准,构建文献协同度模型,探讨不同研究方向协同对我国科硏绩效的影响。硏究得出:①中国在新能源汽车领域发文量已跃居世界第二但文章被引频次较低,整体质量及学术影响力略显不足;②研究主题中,国夕卜形成递进式研究模式,围绕智能电网、电池、LCA生命周期评估等关键词形成研究聚类,国内硏究则集中于电解液、荷电状态等方面,处于“一点式硏究”状态;③研究学科分布对比中,我国在工程电子领域的研究滞后于国夕卜先进水平,但在能源燃料领域保持同向发展,并在材料学、电控等方面处于领先地位;④新能源汽车研究方向协同对科研绩效的提升具有方向性差异;研究协同度不断上升,但文献影响力及学术质量呈下滑趋势;⑤电解液研究与蓄电池研究、交通建模硏究产生负向协同作用;可再生能源与交通建模、再循环研究协同均对我国新能源汽车科硏产生正向影响;道森结构的研究暂属于学术孤岛区,同多硏究方向呈负向协同关系。综合来看,“一点式突破”的研究模式与被动式研究的学术思路无法彻底改善中国新能源汽车研究大而弱的不良局面,应当强化科研项目协同机制”走自主可控协同创新之路。

The aim of this paper is to analyze the overall situation of new energy vehicle research at home and abroad, and to clarify the road of new energy vehicle research in China. Based on 6194 papers on new energy vehicles collected in the core collection of WOS since 1992, the research keywords are selected, the time zone maps are established, the research directions are compared and the research depth is analyzed;on this basis, 279 high-level papers on new energy vehicles in China are screened, and the literature evaluation criteria are put forward, and the literature is constructed. Collaboration degree model is used to explore the impact of different research directions on China's scientific research performance. It is concluded that:(1) China has leapt to the second place in the world in the field of new energy automobiles, but the citation frequency of articles is low, and the overall quality and academic influence are slightly insufficient.(2) Among the research topics, progressive research mode has been formed in foreign countries, clustering around key words such as smart grid, battery and LCA life cycle assessment, while domestic research has focused on electrolyte and charging state, which is in the state of "one-point research".(3) Compared with the distribution of research disciplines, the research in the field of Engineering Electronics in China lags behind the advanced level of foreign countries, but maintains the same direction in the field of energy and fuel, and is in the leading position in materials science and electronic control.(4) Research direction synergy of new energy vehicles has directional differences in improving research performance;research synergy is increasing, but the influence of literature and academic quality are declining;(5) Electrolyte research and battery research, traffic modeling research produce negative synergy;renewable energy and traffic modeling, Recycling Research Collaboration has a positive impact on the research of new energy vehicles in China;Dawson structure belongs to the academic isolated area temporarily, and has a negative synergistic relationship with many research directions. Generally speaking, the research mode of "one-point breakthrough" and the academic thinking of passive research cannot completely improve the bad situation of the research on new energy vehicles in China. We should strengthen the allocation mechanism of topics and take the road of independent exploration.