US 12,112,898 B2
Electrolytic capacitor and method for manufacturing electrolytic capacitor
Yasuhiro Tamatani, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Jun. 29, 2022, as Appl. No. 17/852,670.
Application 17/852,670 is a continuation of application No. PCT/JP2020/047618, filed on Dec. 21, 2020.
Claims priority of application No. 2020-002218 (JP), filed on Jan. 9, 2020.
Prior Publication US 2022/0344102 A1, Oct. 27, 2022
Int. Cl. H01G 9/012 (2006.01); H01G 9/045 (2006.01); H01G 9/048 (2006.01); H01G 9/10 (2006.01); H01G 9/14 (2006.01); H01G 9/15 (2006.01)
CPC H01G 9/012 (2013.01) [H01G 9/045 (2013.01); H01G 9/048 (2013.01); H01G 9/10 (2013.01); H01G 9/14 (2013.01); H01G 9/15 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrolytic capacitor comprising:
a cuboidal resin molding including a first end surface, a second end surface, a laminate of capacitor elements each including an anode with a dielectric layer on a surface thereof and a cathode opposite to the anode, and a sealing resin sealing the laminate;
a first external electrode on the first end surface of the resin molding and electrically connected to the anode exposed at the first end surface; and
a second external electrode on the second end surface of the resin molding and electrically connected to the cathode exposed at the second end surface,
wherein the first external electrode includes, sequentially from a side thereof adjacent to the first end surface of the resin molding:
a first thermal spraying electrode layer; and
a second thermal spraying electrode layer in contact with the first thermal spraying electrode layer and having a higher porosity than the first thermal spraying electrode layer.