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1. WO2020117346 - BATTERY PARTS HAVING SOLVENTLESS ACID BARRIERS AND ASSOCIATED SYSTEMS AND METHODS

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[ EN ]

CLAIMS

I/We claim:

1. A battery part, comprising:

a body having a lug portion extending from a base portion, wherein the base portion is configured to be a least partially embedded in battery container material; and

a light-curable material applied to at least a portion of an exterior surface of the base portion, wherein the light-curable material is configured to seal an interface between the battery part and the battery container material when the base portion is embedded in the battery container material.

2. The battery part of claim 1 wherein the base portion includes a plurality of sealing portions extending radially outward relative to a longitudinal axis of the battery part, and wherein the light-curable material is applied directly to an exterior surface of the sealing portions.

3. The battery part of claim 1 wherein the light-curable material includes an acrylated urethane.

4. The battery part of claim 1 wherein the light-curable material is a masking resin that is curable via exposure to UV light.

5. The battery part of claim 1 wherein the light-curable material is a solventless compound that is resistant to corrosion by electrolytes.

6. The battery part of claim 1 wherein the light-curable material is omitted from an exterior surface of the lug portion.

7. The battery part of claim 1 wherein the body further includes a circumferential flange projecting radially outward beyond the base portion, wherein the flange is configured to be at least partially embedded in the battery container material to inhibit the battery part from twisting in the battery container material, and wherein the light-curable material is applied to at least a portion of an exterior surface of the flange.

8. A method of manufacturing a battery part including a body having a lug portion and a base portion, the method comprising:

applying a sealant to at least a portion of an exterior surface of the base portion; and

exposing the sealant to light to cure the sealant, wherein the cured sealant is configured to seal an interface between the battery part and battery container material when the base portion is embedded in the battery container material.

9. The method of claim 8 wherein applying the sealant includes applying a sealant that has not been dissolved in a solvent prior to applying the sealant to the base portion.

10. The method of claim 8 wherein applying the sealant includes applying a masking resin including an arcylated urethane, and wherein exposing the sealant to light includes irradiating the sealant with ultraviolet light.

1 1. The method of claim 8, further comprising embedding the base portion of the battery part in the battery container material.

12. The method of claim 8 wherein the body of the battery part includes a plurality of sealing portions extending radially outward relative to a longitudinal axis of the battery part, and wherein applying the sealant includes applying the sealant to an exterior surface of the sealing portions.

13. The method of claim 12 wherein applying the sealant to the exterior surface of the sealing portions includes applying the sealant to have a generally uniform thickness.

14. The method of claim 8, further comprising rotating the battery part while applying the sealant and exposing the sealant to light.

15. A battery part manufacturing system, comprising:

a support configured to receive a battery part;

a sealant applicator configured to coat at least a portion of the battery part with a sealant; and

a light source configured to irradiate the sealant on the battery part to cure the sealant on the battery part.

16. The battery part manufacturing system of claim 15 wherein the platform is movable to sequentially move the battery part past the sealant applicator and the light source.

17. The battery part manufacturing system of claim 15 wherein the platform includes a spindle configured to releasably grasp the battery part, and wherein the spindle is rotatable to rotate the battery part relative to the sealant applicator and the light source.

18. The battery part manufacturing system of claim 17 wherein the spindle is configured to rotate the battery part at a first speed when the battery part is positioned near the sealant applicator and to rotate the battery part at a second speed, less than the first speed, when the battery part is positioned near the light source.

19. The battery part manufacturing system of claim 15 wherein the sealant applicator includes a pressurized sprayer having a spray nozzle for directing the sealant toward the battery part.

20. The battery part manufacturing system of claim 19 wherein the sealant applicator is electromechanically actuatable to vary the position of the spray nozzle relative to the battery part.