Solid electrolytic condensers and methods for preparing the same
View Patent ↗The present invention provides solid electrolytic condensers with increased heat resistance and decreased ESR, and methods for preparing the same. The solid electrolytic condensers of the present invention comprise a porous sintered body 1 made of a valve action metal, a dielectric layer 2 covering at least a portion of the porous sintered body 1 , and a solid electrolytic layer 3 covering at least a portion of the dielectric layer 2 , where the solid electrolytic layer 3 is composed of an anion exchange resin.
1. A solid electrolytic condenser comprising:
a porous sintered body made of a valve action metal;
a dielectric layer covering at least a portion of the porous sintered body; and
a solid electrolytic layer covering at least a portion of the dielectric layer,
wherein the solid electrolytic layer is composed of an anion exchange resin,
wherein the anion exchange resin has —SO 3 − NH 3 + CH 2 CH 2 NH 3 + as an ion exchange group.
2. The solid electrolytic condenser of claim 1 , wherein the anion exchange resin has a copolymer of tetrafluoroethylene with perfluorovinylether.
3. The solid electrolytic condenser of claim 1 , wherein the anion exchange resin has a copolymer of tetrafluoroethylene with perfluorovinylether, and —SO 3 − NH 3 + CH 2 CH 2 NH 3 + as an ion exchange group, that are represented by Formula 1 below:
wherein m and n are an integer.
4. The solid electrolytic condenser of claim 1 , wherein the anion exchange resin has OH − as an anion.
5. The solid electrolytic condenser of claim 1 , wherein the anion exchange resin has a grid structure where a number of fluorocarbon clusters are bonded to each other.
6. The solid electrolytic condenser of claim 1 , wherein the anion exchange resin is a quatemarized ammonium-based anion exchange resin.
7. The solid electrolytic condenser of claim 6 , wherein the anion exchange resin is a quatemarized poly(4-vinylpyridine) represented by Formula 2 below:
wherein n is an integer.
8. The solid electrolytic condenser of claim 7 , wherein the anion exchange resin has OH − as an anion.
9. The solid electrolytic condenser of claim 2 , wherein the anion exchange resin has OH − as an anion.
10. The solid electrolytic condenser of claim 3 , wherein the anion exchange resin has OH − as an anion.
11. The solid electrolytic condenser of claim 2 , wherein the anion exchange resin has a grid structure where a number of fluorocarbon clusters are bonded to each other.
12. The solid electrolytic condenser of claim 3 , wherein the anion exchange resin has a grid structure where a number of fluorocarbon clusters are bonded to each other.
13. The solid electrolytic condenser of claim 4 , wherein the anion exchange resin has a grid structure where a number of fluorocarbon clusters are bonded to each other.