Research On Patent Bibliometrics Of New Energy Technology Development In My Country

With the over-exploitation and use of petrochemical energy,energy depletion and environmental pollution are becoming more and more serious.New energy technologies represented by renewable energy and clean energy have attracted the attention of governments,enterprises and scientific research institutions of various countries.Patent literature is one of the carriers of technology.By analyzing patent literature,you can fully understand the development status of related technical fields.This paper applies patent landscape analysis methods to analyze patent literature on new energy technology patents,coal bed methane patents,wind turbine blade patents,and perovskite solar cell patents.Carry out a comprehensive patent landscape analysis of new energy technology patents from four dimensions: time,space,innovation body,and technology body;then lock three specific patent technologies: coal bed methane,wind turbine blades,perovskite solar cells,The perspective of patent landscape analysis carries out detailed analysis from the macro and micro levels;it mainly analyzes the annual patent application trends,patent technology life cycle,patent application institutions,patent inventors,mainstream technologies,technical topics,research hot spots,etc.;through patent literature Measurement,grasp the application trend of various patents and the technology life cycle from a macro level,from the micro perspective,sort out mainstream technologies through IPC classification number analysis,apply LDA theme model to generate technical topics,and use ROST software to obtain patent abstract text.Frequent words and draw high-frequency word network map mining research hotspots.The mainstream technology derived from the analysis of IPC classification numbers,the technical topics generated by the LDA model,and the research hotspots of high-frequency word network graph mining complement each other,making the results more accurate.Through the analysis,it is found that the new energy technology is in a stage of rapid development.The mainstream technology direction can be divided into fourdirections: electrical storage of circuit devices,electric vehicles,power conversion conductive connections,electrical energy preparation and conversion;from the macro and micro perspectives,three specific New energy technology patents have found an upward trend in all three patent fields.Perovskite solar cells have the shortest R&D time,rapid development,and strongest vitality.They are currently in the development stage.The patents for wind turbine blades and coal bed methane are more mature.The room for development and growth is relatively limited;it is found that the current technical topics of perovskite solar cell patents are mainly: light-emitting devices that are specifically suitable for light emission,methods or equipment for manufacturing or processing such devices or their components,research on preparation materials,optoelectronics Conversion;the patent technology topics of wind turbine blades are:functional research such as de-icing and lightning protection,blade rotation research,component structure research,engine control and monitoring,material manufacturing and testing;technical theme of coal bed methane patents: mining devices and methods,Pipeline structure control,wellbore and gas related research.