Manufacture of pasted current collectors for bipolar batteries
AssigneeWirtz Manufacturing Company, Inc.
InventorsMichael R. Romeo, Jason P. Miller
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, laser 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;
- and
- emitting a laser beam to said elongate strip of substrate material downstream of applying paste material and at said applied paste material while said applied paste material is in a wet state, said laser beam severing said elongate strip of substrate material at said applied paste material while said applied paste material is in the wet state, said elongate strip of substrate material severed into multiple individual pasted substrates via said laser beam.
A method of making pasted substrates for use in bipolar batteries, the method comprising:
- applying paste material to an elongate strip of substrate material;
- laser cutting said elongate strip of substrate material via a laser assembly downstream of applying paste material and at said applied paste material while said applied paste material is in a wet state, said laser cutting serving to cut said elongate strip of substrate material at said applied paste material while said applied paste material is in the wet state, said laser cutting providing a non-contact cutting action of said elongate strip of substrate material at said applied paste material while said applied paste material is in the wet state;
- and
- moving said laser assembly in a longitudinal direction of movement of said elongate strip of substrate material while said laser assembly is in the midst of laser cutting.
A method of making pasted substrates for use in bipolar batteries, the method comprising:
- applying paste material to an elongate strip of substrate material;
- laser cutting said elongate strip of substrate material via a laser assembly downstream of applying paste material and at said applied paste material while said applied paste material is in a wet state, said laser cutting serving to cut said elongate strip of substrate material at said applied paste material while said applied paste material is in the wet state, said elongate strip of substrate material being cut into multiple individual pasted substrates via said laser cutting, said laser cutting providing a non-contact cutting action of said elongate strip of substrate material at said applied paste material while said applied paste material is in the wet state;
- moving said laser assembly in a longitudinal direction of movement of said elongate strip of substrate material while said laser assembly is in the midst of laser cutting;
- and
- moving said laser assembly in a transverse direction across said elongate strip of substrate material while said laser assembly is in the midst of laser cutting, the transverse direction having a generally orthogonal arrangement with respect to the longitudinal direction of movement of said elongate strip of substrate material.
Dependencies are inferred from the claim text.