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Pat. 11251714 United States, Int. Cl.22 H02M 3/335, H02J 3/32, H02J 7/00, H02M 1/00. Method, apparatus and system for improving energy transmission efficiency between battery and power grid : Appl. N 17/490149 : Filed 30.09.2021 : Pub. 15.02.2022 : / Jinfeng Gao, Zhimin Dan, Yizhen Hou ; Assignee Contemporary Amperex Technology Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11251714/en?oq=US11251714.html (дата обращения: ДД.ММ.ГГГГ).