US Patent Issued to BEIJING UNIVERSITY OF TECHNOLOGY on Aug. 5 for "In-situ ultrasonic method for detecting the state of charge in soft-packaged lithium-ion batteries" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,421, issued on Aug. 5, was assigned to BEIJING UNIVERSITY OF TECHNOLOGY (Beijing).

"In-situ ultrasonic method for detecting the state of charge in soft-packaged lithium-ion batteries" was invented by Yan Lyu (Beijing), Jie Gao (Beijing), Xuan Liu (Beijing), Bin Wu (Beijing) and Cunfu He (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a method for in-situ detection of the state of charge (SOC) of pouch-type lithium-ion batteries using ultrasonic guided waves. The invention involves attaching two circular piezoelectric patches symmetrically at a fixed distance from each other on the surface of the lithium-ion bat...