ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,249, issued on Jan. 27, was assigned to Contemporary Amperex Technology (Hong Kong) Ltd. (Hong Kong).
"End cover assembly, battery cell, battery pack, apparatus and liquid-injection method" was invented by Shoujun Huang (Ningde, China), Xinxiang Chen (Ningde, China), Yulian Zheng (Ningde, China) and Peng Wang (Ningde, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides an end cover assembly, a battery cell, a battery pack, apparatus and a liquid injection method. The end cover assembly includes an end cover plate, including a through hole for injecting electrolyte and a fixing portion arranged around the through hol...