US 11,869,726 B2
Stacked aluminum electrolytic capacitor and method for manufacturing the same
Shiau Hong Wu, Taichung (TW); Hui Pin Chen, Taichung (TW); and Chung Ming Wu, Taichung (TW)
Assigned to Lelon Electronics Corp., Taichung (TW)
Filed by Lelon Electronics Corp., Taichung (TW)
Filed on Jul. 19, 2021, as Appl. No. 17/378,851.
Claims priority of application No. 110207290 (TW), filed on Jun. 24, 2021.
Prior Publication US 2022/0415583 A1, Dec. 29, 2022
Int. Cl. H01G 9/00 (2006.01); B23K 26/22 (2006.01); B23K 26/0622 (2014.01); B23K 26/244 (2014.01)
CPC H01G 9/0029 (2013.01) [B23K 26/0622 (2015.10); B23K 26/22 (2013.01); B23K 26/244 (2015.10)] 6 Claims
OG exemplary drawing
 
1. A method, comprising:
providing a lead frame including a positive electrode end and a negative electrode end spaced from the positive electrode end, and a capacitor set including a plurality of stacked capacitor elements each having a positive electrode portion electrically connected to the positive electrode end and a negative electrode portion electrically connected to the negative electrode end; and
using a laser source emitting a laser beam to perform laser welding on the positive electrode end and the positive electrode portion to form a fusion connection therebetween to provide at least one laser welding area, wherein the positive electrode end of the lead frame has a first outer periphery, wherein the positive electrode portion of each capacitor elements has a second outer periphery, wherein the at least one laser welding area is formed on the first outer periphery and the second outer periphery, wherein a gap is formed between the first outer periphery and the second outer periphery, and wherein the gap is dip-coated in a fluoride anti-blushing agent at least three times.