Research on the reception performance of RFID tags in detecting lithium-ion batteries using RFID tags

Abstract

In recent years, smoke and fire accidents have occurred frequently due to crushing of lithium-ion batteries (hereinafter referred to as "LIB") mixed with other waste at the time of waste collection and treatment. In this study, with the aim of constructing an LIB detection system using RFID tags, an automatic recognition technology, we conducted experiments to confirm the basic performance of the tags and to read the tags at multiple measurement sites, using RFID tags currently under development. The results showed that the tags could be detected even when attached to products containing metal objects that weaken radio waves due to their unidirectional directivity. Even in the daily life environment where other radio waves such as Wi-Fi are also flying, the reception performance was confirmed to be equivalent to that of an anechoic chamber if the reception distance is 1 m or less in the laboratory and 2.5 m or less outdoors. Further experiments and studies of detection methods will be conducted for practical use.