US 12,354,809 B2
Electrolytic capacitor and method for manufacturing same
Tatsuji Aoyama, Kyoto Fu (JP); Tomoyuki Tashiro, Yamaguchi Ken (JP); and Shumpei Matsushita, Yamaguchi Ken (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 18/546,925
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Feb. 24, 2022, PCT No. PCT/JP2022/007526
§ 371(c)(1), (2) Date Aug. 17, 2023,
PCT Pub. No. WO2022/181668, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 2021-029040 (JP), filed on Feb. 25, 2021.
Prior Publication US 2024/0312726 A1, Sep. 19, 2024
Int. Cl. H01G 9/008 (2006.01); H01G 9/00 (2006.01); H01G 9/14 (2006.01)
CPC H01G 9/008 (2013.01) [H01G 9/0029 (2013.01); H01G 9/14 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electrolytic capacitor comprising:
a plurality of anode bodies and a plurality of cathode bodies that are stacked together;
a plurality of anode tabs each connected with a corresponding one of the plurality of anode bodies,
a plurality of cathode tabs each connected with a corresponding one of the plurality of cathode bodies;
an anode lead member connected to the plurality of anode tabs; and
a cathode lead member connected to the plurality of cathode tabs,
wherein the plurality of anode tabs include a first anode tab group including at least one of the anode tabs, and a second anode tab group including at least one of the anode tabs,
each of the first anode tab group and the second anode tab group has a through hole HA,
the anode lead member includes a plate-shaped anode connection part made of a metal, the anode connection part being stacked together with and connected to the first anode tab group and the second anode tab group,
each of the first anode tab group and the second anode tab group is fixed and connected to the anode connection part using at least one first fixing structure, and
the at least one of first fixing structure is formed by a portion of the anode connection part extending through the through hole HA and forming a crimping structure.