熔盐电解法制备镁、锂及其中间合金领域专利情报研究

Research on Patent Intelligence in the Field of Magnesium,Lithium and Intermediate Alloys Prepared by Molten Salt Electrolysis

从熔盐电解法制备金属镁、锂及其中间合金相关专利申请的时间态势、国家(地区)分布、主要申请人分布、技术构成以及区域分布等进行分析,进而为我国在该领域的技术研究和专利申请布局提供指导。研究发现,我国专利申请量逐年提升,尤其在2011—2022年之间,国内专利申请总量达2042件,占比80.8%。这一阶段,我国在专利申请数量上占有绝对优势,但是核心专利缺失,无高价值专利;我国排名前20申请人主要为高校和科研院所,且这些高校或科研院所与企业之间的合作申请较少,技术成果转化率相对较低。而美国、日本、加拿大等拥有最强大的科研能力和科技实力,其主要优势体现在电解设备-电解槽核心技术等领域。本文最后也提出了具体的建议,推动我国在该领域争取高价值专利的研发上有所突破,促进产业的高质量发展。

This paper analyses the time trend,national(regional)distribution,distribution of major applicants,technology composition and regional distribution of patent applications related to the preparation of magnesium,lithium and its intermediate alloys by molten salt electrolysis,and then provides guidance for China’s technological research and patent application layout in this field.The study found that China’s patent quantity increase year by year,especially between 2011-2022,The number of China’s patent applications reached 2,042,accounting for 80.8%.At this stage,China has an absolute advantage in the number of patent applications,but the core patents are missing and there are no high-value patents;China’s top 20 applicants are mainly universities and scientific research institutes,and there are few applications for cooperation between these universities or scientific research institutes and enterprises,and the conversion rate of technological achievements is relatively low.On the other hand,the United States,Japan,Canada and other countries have the strongest scientific research capability and technological strength,and their main advantages are reflected in the core technology of electrolytic equipment(electrobath).At the end of this paper,specific suggestions are also put forward to strive for China’s breakthroughs in the development of high-value patents in this field,and promote the high-quality development of the industry.