US Patent Issued to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) on July 21 for "Pressure relief apparatus, battery cell, battery, and electrical device" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,090, issued on July 21, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) Ltd. (Hong Kong).

"Pressure relief apparatus, battery cell, battery, and electrical device" was invented by Wenlin Zhou (Ningde, China), Kaihuan Yang (Ningde, China), Ting Zheng (Ningde, China), Quankun Li (Ningde, China), Peng Wang (Ningde, China) and Mingguang Gu (Ningde, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure relief apparatus includes a pressure relief part having a first surface and a second surface opposite to each other in a thickness direction of the pressure relief part, and a plurality of stages of score grooves sequentially arranged...