锂离子动力电池正极材料在中国专利申请情况分析

基于锂离子动力电池正极材料相关在中国专利申请数据,从年申请量的变化、申请国家分布情况、申请人情况以及正极材料类别四个方面对相关专利进行数据统计和分析。得出锂离子动力电池正极材料相关专利在中国申请数量正稳步增加;国内申请人的专利申请数量已经远超国外申请人的申请数量;国内企业的申请数量正迅速增加,已经超过高校和科研单位的申请量;目前研究的锂电池正极材料的类别中,三元材料的研究势头良好,近几年专利数量迅速增加。

Analysis on Patent Application of cathode material for Lithium Ion Power Battery in China

Based on the patent application data of lithium ion kilometer battery cathode materials in China, data statistics and analysis were carried out on related patents from four aspects: the change in the number of annual application, the distribution of application countries, the applicant's situation and the positive electrode material category. It is concluded that the number of patents related to lithium-ion battery positive electrode materials is increasing steadily; the number of patent applications filed by domestic applicants has far exceeded the number of foreign applicants; the number of patent applications filed by domestic enterprises is rapidly increasing, which has exceededthat filed by universities and research institutes; among the categories of lithium battery cathode materials currently under study, the research status of ternary materials is good, and the number of patents has increased rapidly in recent years.