Solid electrolyte capacitor

Claim 2

In a capacitor comprising a body formed of a valve metal anode and a solid electrolyte, said body having a stem extending therefrom; the improvement wherein the terminal electrodes of the capacitor are U-shaped metallic caps, wherein the negative polarity end cap is secured to one end of the body by an electrically-conductive adhesive, wherein the positive polarity end cap has an opening formed therein and includes a portion spaced from the other end of the body, wherein the said stem extends into the said opening and is electrically connected to the positive polarity end cap, wherein the space between the said portion of the positive polarity end cap and the end of the body is filled with a high temperature, non-conducting material, and wherein the said body is coated with a high temperature nonconducting coating which is intimately bonded thereto.

Claim 3

The invention as recited in claim 1, wherein the negative polarity end cap is made of a non-magnetic material and the positive polarity end cap is made of a magnetic material, wherein the said stem is welded to the positive polarity end cap, and wherein the said high temperature material and high temperature coating are tetrafluorethylene.

Claim 4

A capacitor comprising, a. a rectangular anode made of a valve metal and having a stem of the same material extending therefrom, b. a dielectric oxide coating formed over the surface of the anode, c. a solid electrolyte layer formed over the oxide coating, d. a conducting coating formed over the electrolyte layer, e. a first U-shaped metallic end cap having side walls extending along one end portion of said anode, f. an electrically-conducting adhesive securing the first end cap to the said conducting coating, g. a second U-shaped end cap having a base portion spaced from the other end portion of the anode, h. means forming an opening in the base portion of the second end cap, the said stem extending into the opening and being electrically connected to the end cap, i. a high temperature non-conducting material filling the space between the said base portion of the second end cap and the proximate end of the anode, and j. a high temperature non-conducting outer coating formed over the said conducting coating and intimately bonded thereto.

Claim 5

A capacitor comprising, a. a rectangular anode made of a valve metal and having a stem of the same material extending therefrom, b. a dielectric oxide coating formed over the surface of the anode, c. a solid electrolyte layer formed over the oxide coating, d. a conducting coating formed over the electrolyte layer, e. a first U-shaped metallic end cap having side walls extending along one end portion of said anode, f. an electrically-conducting adhesive securing the first end cap to the said conducting coating, g. a second U-shaped end cap having a base portion spaced from the other end portion of the anode, h. means forming an opening in the base portion of the second end cap, the said stem extending into the opening and being electrically connected to the end cap, i. a high temperature non-conducting material filling the space between the said base portion of the second end cap and the proximate end of the anode, and j. a high temperature non-conducting outer coating formed over the said conducting coating and intimately bonded thereto.

Claim 6

The invention as recited in claim 3, wherein the said first end cap is made of a non-magnetic material and wherein said second end cap is made of a magnetic material.

Claim 7

The invention as recited in claim 3, wherein the said non-conducting outer coating and the said non-conducting material are tetrafluorethylene, and wherein the said outer coating also extends over a portion of the outer surface of the said first end cap. >