ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,874, issued on Sept. 8, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) Ltd. (Hong Kong).
"Housing, battery cell, battery and electric apparatus" was invented by Haibo Ke (Ningde, China), Quankun Li (Ningde, China), Peng Wang (Ningde, China) and Xiaobo Chen (Ningde, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a case, a battery cell, a battery, and an electrical apparatus. The case includes a case body and a pressure relief structure, the case body accommodates an electrode assembly, and the pressure relief structure included a plurality of first pressure relief grooves disposed at intervals on the case body along t...