US 12,272,832 B2
Button cell and electronic device
Ning Peng, Zhuhai (CN); and Bin Xie, Zhuhai (CN)
Assigned to ZHUHAI COSMX BATTERY CO., LTD., Zhuhai (CN)
Filed by Zhuhai CosMX Battery Co., Ltd., Zhuhai (CN)
Filed on Nov. 17, 2023, as Appl. No. 18/512,103.
Application 18/512,103 is a continuation of application No. 17/127,252, filed on Dec. 18, 2020, granted, now 11,862,806.
Claims priority of application No. 202010496417.7 (CN), filed on Jun. 3, 2020; and application No. 202021331670.9 (CN), filed on Jul. 8, 2020.
Prior Publication US 2024/0088494 A1, Mar. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 50/186 (2021.01); H01M 50/109 (2021.01); H01M 50/153 (2021.01); H01M 50/181 (2021.01); H01M 50/533 (2021.01); H01M 50/559 (2021.01); H01M 50/636 (2021.01)
CPC H01M 50/186 (2021.01) [H01M 50/109 (2021.01); H01M 50/153 (2021.01); H01M 50/533 (2021.01); H01M 50/559 (2021.01); H01M 50/636 (2021.01); H01M 50/181 (2021.01)] 19 Claims
OG exemplary drawing
 
1. A button cell, comprising a case, a cell, a conductive member arranged on the case and connected to the case in an insulated manner and a liquid injection port for injecting an electrolyte solution into an accommodating cavity;
wherein the case comprises a bottom shell, and a top cover connected to the bottom shell in a sealed manner, the bottom shell and the top cover enveloping and forming the accommodating cavity for accommodating the cell; the top cover is provided with an opening in communication with the accommodating cavity;
the liquid injection port is covered with a sealing member which is connected to the liquid injection port in a sealed manner;
the cell has a first tab and a second tab, the first tab being electrically connected to the case, and the second tab being electrically connected to the conductive member; and
the conductive member is provided with an extension part which passes through the opening, and the extension part is located above the second tab;
the sealing member is in a sheet structure, is located above the liquid injection port, and does not pass through the liquid injection port;
the conductive member covers the opening, and a projection of the liquid injection port on the top cover falls within a range of the opening on the top cover.