锂离子电池硅基负极专利申请态势分析

Patent application of silicon-based anode for lithium-ion batteries

本文通过对锂离子电池硅基负极技术领域的专利申请态势进行分析,揭示该技术领域当前的专利活动特点,为我国在该领域的科技创新和产业化提供参考。本文从国际专利申请数量年度分布、主要竞争国家/地区、专利技术来源国和目标国、主要专利申请人等方面,对硅基负极技术领域的专利申请态势进行分析,在此基础上,对世界范围内的主要竞争国家及重要申请人的专利申请特点进行重点分析。分析结果表明,硅基负极专利申请主要集中在中国、美国、日本和韩国。国外申请人注重同时在上述四国进行专利布局,并且已经在我国进行大量专利布局,而我国申请人主要在国内进行专利布局,在国外申请较少。最后,就我国未来的锂离子电池硅基负极技术的研发和专利申请与保护工作提出一些建议。

This report analyzed the patent application for silicon-based anode including the annual distribution of applied patents,main competitive countries and patent applicants,patent for origin and target country analysis,etc.The characters of patent application of main competitive countries and patent applicants were also studied.As a result,We found that the patent applications were mainly from China,America,Japan and Korea.Applicants from America,Japan and Korea focused on filing patents in the above four countries,while most applicants from our country filed at home only.The applicants from abroad had filed a large number of patents in our country.Based on these,the report puts forward some suggestions of Science&Technology innovation and patent application and protection for industrial developments about silicon-based anode.