基于专利分析的钠硫电池发展态势研究

新能源技术的不断发展对大规模储能技术提出更高的要求，钠硫电池作为一种备受关注的电化学储能技术，具有良好的性能与经济效益。本文以钠硫电池为研究对象，旨在通过对钠硫电池储能技术相关专利的分析，梳理并总结钠硫电池领域中技术研发重点与专利分布特点。专利数据来源于DII数据库中钠硫电池储能领域的全球专利。在调研钠硫电池研发概况的基础上，利用TDA和Innography工具，从专利申请总体态势、技术主题、主要国家/地区分布、重要专利权人等方面，对钠硫电池相关专利展开分析。最后，就我国钠硫电池储能技术的发展提出建议。

Technological Development Situations of Sodium-Sulphur Battery Based on Patent Analysis

With the development of new energy technologies,the large-scale energy storage technologies should get higher performance.Recently,sodium-sulphur batteries gain momentum as a kind of electrochemical energy storage technology,which have a great number of advantages,such as long lifespan and low cost.In order to reveal the development features of this technology and provide intellectual property strategy for our country,this paper studied the patents in sodium-sulphur battery technology.The patent information was gathered from the Derwent Innovation Index(DⅡ)database.This paper also analyzed the trend of the patent application number,the subject of the technology,the situation of patent applications in main countries or regions,and the significant patentees by using the TDA and Innography.Finally,it got the present situation and trend of sodium-sulphur battery technology,and presented some proposals for our country.