超级电容器领域专利布局解读及技术发展态势研究

Research on the Patent Layout and Development Status of Supercapacitor

为了促进我国超级电容器行业更好发展,通过分析超级电容器领域的专利布局来把握技术发展态势。以德温特数据库为数据源,运用统计计算和CiteSpace软件,从专利申请态势、主要竞争国、专利权人、技术热点、技术演变轨迹、技术发展趋势等多维度进行分析研究。结果表明:超级电容器领域由储电性能、电极材料核心技术已逐渐扩展到其在电气、电动汽车等领域的应用,呈现出多元化发展趋势;与本领域日本、美国及韩国主要国家相比,我国虽然在专利数量上具有一定的竞争优势,但研究主体过于分散孤立,海外布局薄弱,竞争实力还有待进一步加强。

To promote the development of China＇s supercapacitor industry, the patent layout and development status of supercapacitor are analyzed. Taking Derwent Innovation Index as the patent Mata source, statistical computation and CiteSpace are used to analyze from multiple dimensions, e. g. the application trend, the major competing countries, patentees, technology hotspots,trajectory of technological evolution and development trend. The results demonstrate that the research of superca- pacitor has gradually extended from the storage performance and the electrode material to the application of supercapacitor in electrical engineering and electric vehicles, etc. , presenting diversified development trend. Compared with the major countries such as Japan, the United States and South Korea, China has certain competitive advantages in terms of the number of patents,yet the research mainstays are too dispersed and isolated, the overseas layout is weak, and the competitiveness remains to be further strengthened.