US 12,469,905 B2
Button cell and electronic equipment
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 Dec. 5, 2022, as Appl. No. 18/061,867.
Application 18/061,867 is a continuation of application No. PCT/CN2021/094182, filed on May 17, 2021.
Claims priority of application No. 202010496417.7 (CN), filed on Jun. 3, 2020; and application No. 202011402878.X (CN), filed on Dec. 4, 2020.
Prior Publication US 2023/0102775 A1, Mar. 30, 2023
Int. Cl. H01M 50/109 (2021.01); H01M 50/169 (2021.01); H01M 50/528 (2021.01); H01M 50/636 (2021.01)
CPC H01M 50/109 (2021.01) [H01M 50/169 (2021.01); H01M 50/528 (2021.01); H01M 50/636 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A button cell, comprising: a housing and a cover plate assembly, wherein
the housing comprises a bottom wall and an annular side wall, the side wall being integrally formed with the bottom wall;
the cover plate assembly comprises a head cover, a conductive member and a conductive covering member, a through hole is disposed in a middle area of the head cover and is covered by the conductive member, and the conductive member is connected with the head cover in an insulated manner;
an outer edge of the head cover is welded with a top end of the side wall to form an accommodating cavity for accommodating an electrode assembly and electrolyte;
the conductive member has a liquid injection port for injecting the electrolyte into the accommodating cavity, and the conductive covering member covers the liquid injection port and is electrically connected with the conductive member.