Manufacture of pasted current collectors for bipolar batteries
AssigneeWirtz Manufacturing Company, Inc.
InventorsMichael R. Romeo, Jason P. Miller, Edward F. Wood
Life of this patent
Estimating the term…
Abstract
In the manufacture of pasted current collectors for bipolar batteries, a method of making pasted substrates includes several steps. The substrates can be a plastic sheet, an embedded plastic mesh, a metal mesh, an absorbent glass mat (AGM), or some other material. One step involves applying paste material to an elongate strip of substrate material. Another step involves cutting the elongate strip of substrate material into multiple individual substrates. Further steps can involve punching via a rotary punch, crush cutting, ultrasonic cutting, concealing lateral sections via folding, and/or using one or more mask overlays.
Claims20
A method of making pasted substrates for use in bipolar batteries, the method comprising:
- applying paste material to an elongate strip of substrate material;
- cutting said elongate strip of substrate material into multiple individual substrates;
- and
- placing current collector bodies on said pasted substrates downstream of said applying paste material to said elongate strip of substrate material and while said paste material is in a wet state.
A method of making pasted substrates for use in bipolar batteries, the method comprising:
- applying paste material to an elongate strip of substrate material;
- ultrasonic cutting said elongate strip of substrate material at said applied paste material while said applied paste material is in a wet state, wherein said ultrasonic cutting uses an ultrasonic cutter assembly having a blade, said blade severing said elongate strip of substrate material at said applied paste material while said applied paste material is in the wet state;
- and
- moving said blade during said ultrasonic cutting in a direction substantially transverse to a longitudinal direction of movement of said elongate strip of substrate material, and concurrently moving said blade in the longitudinal direction with the longitudinal movement of said elongate strip of substrate material during said ultrasonic cutting.
A method of making pasted substrates for use in bipolar batteries, the method comprising:
- folding lateral sections of an elongate strip of substrate material;
- applying paste material to said elongate strip of substrate material, said folded lateral sections of said elongate strip of substrate material concealed from application of said paste material;
- unfolding said folded lateral sections of said elongate strip of substrate material;
- and
- cutting said elongate strip of substrate material at said unfolded lateral sections.
Dependencies are inferred from the claim text.