US 12,266,826 B2
Button battery and electronic device
Zhiyong Chen, Huizhou (CN)
Assigned to GUANGDONG MIC-POWER NEW ENERGY CO., LTD., Huizhou (CN)
Appl. No. 17/597,937
Filed by Guangdong Mic-power New Energy Co., Ltd., Guangdong Huizhou (CN)
PCT Filed Dec. 20, 2019, PCT No. PCT/CN2019/127142
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/088221, PCT Pub. Date May 14, 2021.
Claims priority of application No. 201911072196.4 (CN), filed on Nov. 5, 2019; and application No. 201921899156.2 (CN), filed on Nov. 5, 2019.
Prior Publication US 2022/0294086 A1, Sep. 15, 2022
Int. Cl. H01M 50/533 (2021.01); H01M 50/109 (2021.01); H01M 50/184 (2021.01); H01M 50/186 (2021.01); H01M 50/536 (2021.01)
CPC H01M 50/533 (2021.01) [H01M 50/109 (2021.01); H01M 50/184 (2021.01); H01M 50/186 (2021.01); H01M 50/536 (2021.01)] 12 Claims
OG exemplary drawing
 
1. A button battery, comprising:
a battery cell;
at least one tab with one end thereof connected to one collector of the battery cell; and
a shell comprising a first housing and a second housing, wherein the first housing and the second housing each have a recess and are hermetically connected onto each other to enclose and form a cavity in which the battery cell and the tab are positioned;
the tab is connected with its other end to the first housing or the second housing;
the first housing and the second housing are provided therebetween with an annular seal whose thicknesses at an open end of the first housing and at an open end of the second housing are greater than that of an axially centered portion of the annular seal.