Research On Patents Analysis Of Power Battery For Pure Electric Vehicles In China

With the increasing shortage of various types of energy in the world,the deterioration of the environment and ecological resources and the rise of the “low-carbon economy”have promoted the rapid development of the global new energy automotive industry.At present,the development of fuel cell vehicle technology is limited,and the technology of hybrid electric vehicles is relatively mature.However,due to the increasingly higher requirements for the environment and energy,pure electric vehicles have ushered in the spring of development due to their clean and pollution-free characteristics.However,in the development process of pure electric vehicles,there are still technical problems that cannot be avoided,among which the power battery is the main key factor restricting the development of pure electric vehicles.Patent information can best embody the most advanced technology information in a field,so we can use the patent information of pure electric vehicle battery to understand the development status and development trend of pure electric vehicle power battery technology,according to the existing patent information on the patented pure electric vehicle power battery,based on its innovation or secondary innovation,to improve the starting point for research and development,and then promote the development of pure electric vehicles.Therefore,in order to seize the initiative in the new round of technological revolution and promote the development of China's pure electric vehicle industry and pure electric vehicle power battery industry,realize our country 's dream of “turning overtaking ” in the automotive industry,the patented technology analysis of pure electric vehicle battery technology is of great significance to the development of pure electric vehicles.This article comprehensively uses literature analysis research methods,empirical research methods,patent analysis methods,and comparative analysis methods.Based on the review of related literature at home and abroad,based on the patent data of the Great Patent Search Database,first of all,the macro-level analysis of China's pure electric vehicle power battery patented technology,to master the patented technology of China's pure electric vehicle power battery development,as a result,it was found that the patent applications filed by foreign applicants in China accounted for 34.77% of the total patent applications for electric vehicles for pure electric vehicles in China.the total amount of Japanese applicants and U.S.applicants applying in China accounted for 75.5% of the total foreign applicants' applications,Japan has always been a leader in the development of pureelectric vehicles.The Tesla electric car in the United States is one of the best companies in the world.Therefore,this article compares the patent data of pure electric vehicle power battery patents applied by Japan and the United States applicants in China with the data of pure electric vehicle power batteries applied by Chinese domestic applicants,with a view to mastering the patent layout of Japan and the United States in pure electric vehicle power batteries in China and the development priorities and research directions of China,Japan and the United States in pure electric vehicle power batteries,In addition,the focus of research and development,the hot spot,and the future development direction of China's pure electric vehicle power battery industry have been discovered,as well as tapping patent blanks for China's pure electric vehicle power battery technology,according to the patent analysis,the problems existing in the development and innovation of the current battery technology for pure electric vehicles in China are summarized,and put forward suggestions,In order to promote the development of China's pure electric vehicle power battery industry,promote the upgrading of pure electric vehicle industry.