基于专利耦合的中国、美国、日本锂离子电池技术前沿及差距分析

Study on Technical Fronts as Well as Gaps Based on the Patent Bibliographic Coupling in the Field of Lithium-ion Battery Related to China,US and Japan

基于定量分析识别技术前沿并测度各国的技术差距具有重要的理论和现实意义。本研究初步探讨了基于专利数据,利用文献计量学的引文耦合分析法,进行技术前沿的识别和技术差距粗略测度,并以锂离子电池为例进行实证研究。研究结果表明,该方法所识别出来的中国、关国和日本在锂离子电池领域的技术前沿以及各国之间的技术差距,与产业现状具有一定一致性,是一条可行的研究途径。

Recognition of technical fronts as well as measure of technical gaps among countries based on quantitative analysis has important theoretical and practical significances, in tins paper, a new method for identifying technical fronts and measuring technical gaps roughly in terms of bibliographic coupling analysis based on patent data is discussed, and the field of Lithium-ion battery is selected to perform empirical analysis. Results show that technical fronts for Japan, the USA, and China, as well as technical gaps among them recognized according to the method above is in accordance with industrial status. So the method used in this paper is an effective and feasible approach.