Research On Development Of Hydrogen Fuel Cell Vehicle Based On Patent Analysis

With the worsening of ecological environment and air pollution,the increasing use of energy resources in China,and the "absolute clean" technical characteristics of hydrogen fuel cell vehicles,all countries in the world are developing relevant technologies.In this paper,we mainly use the patent data of hydrogen fuel cell vehicle,and use the methods of Literature Analysis and Knowledge Atlas Analysis to analyze the technology status and research hot spots of hydrogen fuel cell vehicle,based on this,the paper gives some countermeasures and suggestions for the development of industrialization in China.This article mainly includes the following parts:The first part is a comprehensive overview of the relevant basic content and theory,and related technology,the status of the theory was described.Under the background of the development of hydrogen fuel cell vehicle and its related technology,the patent information is studied by Knowledge Atlas and Bibliometrics.This paper expounds the research on the theory of Patent Analysis and hydrogen fuel cell technology,and the theory of patent analysis has become a useful analysis method in many fields after years of development and improvement,remarkable technical achievements have been made and the landing conditions in China are good.At the same time,this paper summarizes the meaning of patent,Patent Analysis and Knowledge Mapping,and selects two knowledge mapping tools that are suitable for this paper.In the second part,the status quo of hydrogen fuel cell vehicle technology is studied.The development of hydrogen fuel cell vehicle technology has entered a stage of maturity from an incremental point of view,using the contents of Derwent patent database for statistical analysis,the B60 category of the annual variation of patent applications in IPC showed an absolute increasing trend,while the traditional H01,F02,C08 and C10 all showed a decreasing trend.In addition,by using the keyword density view of patent information,this paper makes a brief analysis of the patents held by the main patentees in this field.The third part is mainly about subdividing the hydrogen fuel cell vehicle and its related technologies,and combining the emergent word Algorithm to research the frontier technologies in the patent information.Two main technologies,fuel cell stack and on-board hydrogen storage technology,are obtained through literature investigation and patent information.Combined with the results of emergent words,it is found that hydrogen fuel cell vehicle and its related technology center,and the technology related to on-board hydrogen storage are at the forefront of the current patent technology in this field,while the fuel cell stack technology is relatively mature,the breakthrough difficulty is big,the technical space is small.The fourth part is mainly to the hydrogen fuel cell vehicle industrialization development proposed the proposal.From the point of view of patent technology,on the one hand,it is necessary to ensure the continuous investment in basic technology and increase the investment in R & D resources for key technologies in accessible fields,and on the other hand,it is necessary to establish a broad patent early-warning mechanism,avoid technical risks.From the policy point of view,it is necessary to provide the corresponding industrial policy as far as possible,and introduce specific measures to support industrial development.From a market perspective,commercial use of hydrogen fuel cell vehicles should be accelerated.