The analysis of international patents in flow cell technology#br#

doi:10.12028/j.issn.2095-4239.2016.0018

Abstract

Abstract: Flow batteries are used mainly for large-scale energy storage, which have a great number of outstanding advantages, including long lifespan and high safe reliability. In order to reveal the development features of this technology and provide intellectual property strategy support for our country, we study the international patents in flow cell technology. The patent information in this article is gathered from the Derwent Innovation Index (DII). By using the method of literature investigation, we summarize the overview of the flow cell technology development. Then we analyze the trend of the patent application number, the layout of the technology, the situation of patent applications on flow cell in the main countries or regions, and the significant patentees by using the analysis tools—TDA and innography. As a result, we find that Japan takes the lead in this sector, and the dramatic rise in patent application number recently shows the gradually mature of flow cell technology.

Key words: flow cell, vanadium battery, patent analysis, intellectual property

QU Haini1, MA Tingcan2, DAI Weiyi2, LI Lihua1, ZHAO Sanshan1 . The analysis of international patents in flow cell technology#br#[J]. Energy Storage Science and Technology, 2016, 5(6): 926-934.

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