从专利角度分析钠离子电池的产业态势

Analyze the Industrial Situation of Sodium Ion Battery from the Patent Perspective

【目的】钠离子电池在不断的优化调控中,逐步向实际应用靠拢,本研究旨为相关企业的专利战略布局提供技术指引。【方法】从专利角度对钠离子电池的产业态势,综合专利数量、研发团队类型、关键技术点等方面进行分析。【结果】钠电池的正极、负极、电解液为重点产业环节,其中,正极材料的研究团队相对较多,且层状氧化物正极材料的优化备受关注,主要申请人为中南大学、复旦大学及江苏正力新能电池技术有限公司等;负极材料目前较多采用硬碳,申请人主要集中在陕西科技大学、中南大学及华南理工大学等大专院校,相关企业申请量较少;电解液材料中,NaPF6较为常用。【结论】钠离子电池因其性能优势和成本优势备受关注,在锂资源供应紧张的情况下,钠离子电池发展迅速。

[Purposes]The research on sodium ion batteries(SIB)is closing to the application gradually during the continuous optimization and control of SIB.This article aims at providing technical guidance of strategic layout for related enterprises.[Methods]This article analyzes the industrial trend,the num-ber of patents,the type of R&D team,and key technical points from the perspective of patent.[Findings]The positive electrode,negative electrode,and electrolyte of SIB are key industrial links.There are more research teams for positive electrode materials,and the optimization of layered oxide positive electrode materials is highly concerned.The main applicants of positive electrode are Central South University,Fu-dan University,and Jiangsu Zenergy Battery Technologies Co.,Ltd.et al.At present,many negative elec-trode materials are made of hard carbon,and related applicants are mainly concentrated in colleges and universities such as Shaanxi University of Science and Technology,Central South University,and South China University of Technology,with a relatively small number of applications from related enterprises;NaPF6 is commonly used in electrolyte materials.[Conclusions]SIB have attracted much attention due to both their performance and cost advantages.With the tightly supply of lithium resources,SIB develop rapidly.