Abstract:

In this paper, we studied the distribution patents and the technology development of solid-polymer electrolyte lithium-ion battery. The patent information in this paper was collected from Derwent Innovations Index database and Patent Analysis Online System of Chinese Academy of Science. We analyzed the application year, technological distribution, main countries or regions, key applicants of related patents by using Thomson Data Analyzer (TDA) and Microsoft Excel, and importantly focused on the patents applied in China. Based on the analysis, we got the international and national situations and development trends of solid-polymer electrolyte lithium-ion battery in order to provide some reference for development of this area in China.

Key words: solid-polymer electrolyte, lithium-ion battery, patents analysis