[17a-Z22-1~10] 11.4 Analog applications and their related technologies

△ [17a-Z22-1] Study on Small Metallic Contaminant Detection in Liquid using High-Tc SQUID

〇Masaru Sagawa¹, Kanji Hayashi¹, Takeyoshi Ohtani¹, Saburo Tanaka¹ (1.Toyohashi Univ. of Technol.)

Keywords:contaminant detection, SQUID, Li-Ion Battery

We have developed a prototype detection system for liquid components in lithium-ion batteries using a high-temperature superconducting quantum interference device (HTS RF-SQUID). In the previous system, a metalic contaminant sample was stacked on a fishing line was passed through a nylon tube and moved by an electric motor to simulate a metalic contaminant body flowing through a pipe. It was suggested that stainless steel spheres with a minimum diameter of about 25 mm could be detected in this system. Therefore, we constructed and evaluated a new system for detecting small metallic contaminant in water.