Energy storage device

An energy storage device including:

• a plurality of first electrode members each extending between a first end and a second end;
• a plurality of second electrode members each extending between a third end and a fourth end wherein, in use, the second members are interleaved with the first members such that the third ends are located intermediate the first and second ends of the first members, the first members being adjacent to the second members;
• an insulator disposed between the adjacent first and second members to prevent electrical contact therebetween;
• a contact means extending from at least one of the first ends and being electrically connected to all the first members, said means providing:
• (a) a site for metallization of particles thereupon such that said particles form a connection layer for an electrical terminal for the first members;
• and
• (b) a barrier against an ingress of said particles beyond said first ends;
• and
• wherein said connection layer is porous to allow passage therethrough of an electrolyte.

An energy storage device including:

• a plurality of first electrode members each extending between a first end and a second end;
• a plurality of second electrode members each extending between a third end and a fourth end wherein, in use, the second members are interleaved with the first members such that the third ends are located intermediate the first and second ends of the first members, the first members being adjacent to the second members;
• an insulator disposed between the adjacent first and second members to prevent electrical contact therebetween;
• a contact means extending from at least one of the first ends and being electrically connected to all the first members, said means providing:
• (a) a site for metallization of particles thereupon such that said particles form a connection layer for an electrical terminal for the first members;
• and
• (b) a barrier against an ingress of said particles beyond said first ends;
• and
• wherein said terminal is welded to a connection layer.

A method for producing an energy storage device including a plurality of first electrode members each extending between a first end and a second end and a plurality of second electrode members each extending between a third end and a fourth end, the method including the steps of:

• integrally forming the first members from a first conductive sheet and integrally forming the second members from a second conductive sheet;
• interleaving the second members with the first members such that the third ends are located intermediate the first and second ends of the first members, the first members being adjacent to the second members;
• disposing an insulator between the adjacent first and second members to prevent electrical contact therebetween;
• and
• winding the sheets and the insulator in a spiral;
• providing a contact means which extends from at least one of the first ends and which is electrically connected to all the first members, said means providing a first site for metallization of particles thereupon and a barrier against an ingress of said particles beyond said first ends;
• and
• directing a stream of said particles toward said site such that said particles metallize to form a connection layer for an electrical terminal for the first members.

A method for producing an energy storage device including a plurality of first electrode members each extending between a first end and a second end and a plurality of second electrode members each extending between a third end and a fourth end, the method including the steps of:

• interleaving the second members with the first members such that the third ends are located intermediate the first and second ends of the first members, the first members being adjacent to the second members;
• disposing an insulator between the adjacent first and second members to prevent electrical contact therebetween;
• providing a contact means which extends from at least one of the first ends and which is electrically connected to all the first members, said means providing a first site for metallization of particles thereupon and a barrier against an ingress of said particles beyond said first ends;
• directing a stream of said particles toward said site such that said particles metallize to form a connection layer for an electrical terminal for the first members;
• and
• wherein said connection layer is porous and said method includes the step of passing an electrolyte through said metallization and between said interleaved members.

A method for producing an energy storage device including a plurality of first electrode members each extending between a first end and a second end and a plurality of second electrode members each extending between a third end and a fourth end, the method including the steps of:

• interleaving the second members with the first members such that the third ends are located intermediate the first and second ends of the first members, the first members being adjacent to the second members;
• disposing an insulator between the adjacent first and second members to prevent electrical contact therebetween;
• providing a contact means which extends from at least one of the first ends and which is electrically connected to all the first members, said means providing a first site for metallization of particles thereupon and a barrier against an ingress of said particles beyond said first ends;
• directing a stream of said particles toward said site such that said particles metallize to form a connection layer for an electrical terminal for the first members;
• and
• providing at least a portion of said connection layer with a substantially planar exterior surface.

A method for producing an energy storage device including a plurality of first electrode members each extending between a first end and a second end and a plurality of second electrode members each extending between a third end and a fourth end, the method including the steps of:

• interleaving the second members with the first members such that the third ends are located intermediate the first and second ends of the first members, the first members being adjacent to the second members;
• disposing an insulator between the adjacent first and second members to prevent electrical contact therebetween;
• providing a contact means which extends from at least one of the first ends and which is electrically connected to all the first members, said means providing a first site for metallization of particles thereupon and a barrier against an ingress of said particles beyond said first ends;
• directing a stream of said particles toward said site such that said particles metallize to form a connection layer for an electrical terminal for the first members;
• and
• attaching said terminal to said exterior surface.

A method of producing a termination for an electrode of an energy storage device, the method including the steps of:

• forming a porous metallization layer on the electrode;
• passing an electrolyte through the layer toward the electrode;
• and
• providing at least a portion of said layer with a substantially planar exterior surface.