全球储能专利技术发展态势分析

Analysis on the Development Trend of Global Energy Storage Patent Technology

基于文献计量的方法,对全球储能技术领域分布、储能专利申请量年度变化情况、储能专利技术构成、储能技术专利申请国家/地区、全球储能技术机构和专利技术主题分布进行分析,并进一步分析全球储能专利技术发展态势。结果表明,全球储能专利申请量正在快速增加,其中电池储能占比最大,中国储能技术专利申请量占全球相关专利的66.21%,日本和美国次之;主要机构包括中国国家电网、丰田自动车株式会社、日立集团等;专利技术主题主要集中在锂离子电池、电池负极材料、换热器、储能模式与设备等方面。电池储能为主的新型储能已经在快速发展并且具有较大的发展潜力,我国储能产业的发展要继续坚持自主创新,加强技术攻关,推进核心技术研究和开发,使得我国储能产业能够在全球竞争中占据有利地位。

Energy storage system is an important supporting technology to achieve the"double carbon"goal and complete the energy revolution.Based on the bibliometric method,the distribution of global energy storage technology fields,the annual changes in the number of energy storage patent applications,the composition of energy storage patent technologies,the countries/regions where energy storage technology patents are applied,the distribution of global energy storage technology institutions and patent technology themes,and further analyzed the development trend of global energy storage patent technology.The results show that:The number of global energy storage patent applications is increasing rapidly,of which battery energy storage accounts for the largest proportion.China's energy storage technology patent applications account for 66.21%of global related patent applications,followed by Japan and the United States;major institutions include State Grid of China,Toyota Motor Corporation,Hitachi Group,etc.;the patented technology topics mainly focus on lithium-ion batteries,battery anode materials,heat exchangers,energy storage modes and equipment,etc.New energy storage systems,primarily based on battery storage,are rapidly developing and possess significant growth potential.The development of the energy storage industry must continue to adhere to independent innovation,strengthen technological breakthroughs,and promote the research and development of core technologies,enabling China's energy storage industry to occupy a favorable position in global competition.