Electric vehicle charging pile data

The previous research on technology identification or technology discovery mostly focused on patent data for analysis and mining. On this basis, this paper supplemented the data sources such as papers, news reports and user comments.

After pre-processing such as cleaning and de duplication, the data includes four fields: identification number, title, summary and time (user comments include three fields: identification number, comment and time), in which the identification number is the unique identifier of each document. A total of 11700 pieces of data covering four types from 1992 to 2021.