基于专利分析的石墨烯技术创新态势研究

Trend study of graphene technology' s development based on patent analysis

研究了新型二维纳米材料石墨烯的全球研究动态。将石墨烯技术研究按制备和应用两个角度定义了复合材料、传感器、锂离子电池、化学气相沉积制备等12个领域，通过对德温特专利数据库收录的1967～2013年石墨烯技术专利的分析，揭示了专利排名前十名国家（地区）在这些领域开展石墨烯技术创新的动态，以及石墨烯技术研究在各个领域中的发展趋势。研究表明：中、美、韩、日在石墨烯技术研究上表现比较强劲，美、韩的研发重点在大企业，而中国的研发重点在大学；中国的专利主要集中在国内，全球布局能力明显不如美韩；总体来看，整个产业链仍未形成，不具备实现大面积、高质量的工业化生产的成熟技术，石墨烯的可控制备、石墨烯的结构和性质调控以及石墨烯材料的应用等仍然是未来的研究热点。

The developments of worldwide studies of graphene, a new type of two dimensional nano material, was investigated. According to application and preparation, the graphene research was divided into 12 fields of composite material, sensor, lithium ion battery, chemical vapor deposition based preparation, etc. , and based on the analysis of the graphene patents （1967 - 2013 ） collected by the Derwent Innovation Index database, the developments of innovative graphene research of ten countries/regions owning more graphene patents in the 12 fields, as well as the graphene R＆D trends in each field, were distinctly revealed. The study indicates that China, America, and South Korea and Japan are foreefull in graphene development, and America and south Korea mainly rely on huge enterprises, while China mainly relies on major universities; China＇ s patents are mostly internal, with a weak globle distribution compared with America and South Korea; in general, now the technology for large scale, high standard preparation of graphene is not formed, and graphene＇ s controlled preparation, regulation and control s structure and characters, as well as graphene＇ s application, are still the major directions for future of graphene＇ research.