Resin composition coating apparatus and battery assembly

Abstract

The present invention provides a method for manufacturing a battery assembly using an improved resin composition coating apparatus and a battery assembly manufactured therefrom. The present application provides a resin composition coating apparatus for coating a resin composition to be applied to at least one surface of a housing for a battery or at least a portion of at least one surface of the battery, comprising a cartridge section, a mixer section connected to the cartridge section, and a coating section connected to the mixer section, wherein the coating section comprises a discharge section including at least one coating pipe through which the resin composition flowing in from the mixer section can pass and a storage space for which the resin composition flowing in from the at least one coating pipe can accumulate, the discharge section comprising at least a first surface and a second surface forming the storage space, and the resin composition is discharged to the outside through a space separated between one end of the first surface and one end of the second surface.

Claims

1. In a resin composition coating apparatus for coating a resin composition to be applied to at least one surface of a housing that contains a battery or to at least a portion of at least one surface of the battery, Cartridge section and A mixer unit connected to the cartridge unit, It includes a coating section connected to the mixer section, The coating portion is At least one coating pipe provided to allow the resin composition flowing in from the mixer section to pass through, The discharge section includes a storage space provided for accumulating the resin composition flowing in from at least one of the coating tubes, The discharge section includes at least a first surface and a second surface that form the storage space, A resin composition coating apparatus configured such that the resin composition is discharged to the outside through a space separated between one end of the first surface and one end of the second surface.

2. The resin composition coating apparatus according to claim 1, wherein the first surface and the second surface each independently have an inclination angle of more than 0 degrees to 90 degrees or less with respect to the surface on which the resin composition is applied.

3. The resin composition coating apparatus according to claim 1, wherein if either the first surface or the second surface has an inclination angle of 90 degrees with respect to the surface on which the resin composition is applied, the other surface has an inclination angle of more than 0 degrees and less than 90 degrees.

4. The cartridge section includes a first cartridge section for containing the main component composition and a second cartridge section for containing the curing agent composition, the first cartridge section is connected to the mixer section by a first connecting pipe so as to be fluidly connected, and the second cartridge section is connected to the mixer section by a second connecting pipe so as to be fluidly connected. The resin composition coating apparatus according to claim 1, wherein the mixer section includes a collection section fluidly connected to the first connecting pipe and the second connecting pipe, and a mixing section fluidly connected to the collection section and including a screw device.

5. The at least one coating tube is Including the inlet and flow section, The aforementioned entrance portion is, The mixer section is positioned so as to at least partially overlap the flow section, and the mixer section and the flow section are connected so that the resin composition flows. The resin composition coating apparatus according to claim 1, having a shape in which the cross-sectional area through which the resin composition passes gradually decreases from the side end of the mixer section to the side end of the flow section.

6. The resin composition coating apparatus according to claim 5, wherein the flow section has a continuously constant cross-sectional area at each point through which the resin composition passes, with reference to the direction in which the resin composition flows.

7. The resin composition coating apparatus according to claim 5, wherein the flow portion includes a bent portion provided in at least a portion of the area to change the direction of movement of the resin composition.

8. The resin composition coating apparatus according to claim 7, wherein the bent portion is bent five times or less.

9. The flow section further includes a storage section provided in a portion of the region to reduce the movement speed of the resin composition. The resin composition coating apparatus according to claim 6, wherein the storage section, with reference to the direction in which the resin composition flows, has a cross-sectional area at each point through which the resin composition passes that is greater than the cross-sectional area at each point through which the resin composition passes in the region other than the storage section.

10. The resin composition coating apparatus according to claim 2, wherein the difference in the inclination angle between the first surface and the second surface is 10 degrees or less.

11. The resin composition coating apparatus according to claim 1, wherein the first and second surfaces are configured to gradually narrow towards the discharge end of the resin composition, thereby forming a nozzle structure.

12. The discharge section is equipped with a discharge hole that allows the resin composition to be discharged to the outside. The resin composition coating apparatus according to claim 1, wherein the discharge hole has a rectangular shape so that the resin composition is coated over a surface.

13. The aforementioned discharge hole is The resin composition coating apparatus according to claim 12, wherein the width in the second direction, which is the direction of movement of the resin composition coating apparatus, is formed to be smaller than the width in the first direction perpendicular to the second direction.

14. The resin composition coating apparatus according to claim 1, wherein the resin composition is a viscous composition having a viscosity of 10,000 cP or more as measured at 25°C.

15. The coating section includes a case that surrounds at least a part of the coating pipe and the discharge section. The aforementioned case is, Exterior parts and A buffer portion provided on the inside of the outer casing, A resin composition coating apparatus according to claim 1, comprising:

16. The resin composition coating apparatus according to claim 2, wherein the inclination angle of the first surface is less than or equal to the inclination angle of the second surface.

17. In a resin composition coating apparatus for coating a resin composition to be applied to at least one surface of a housing that contains a battery or to at least a portion of at least one surface of the battery, Cartridge section and A mixer unit connected to the cartridge unit, It includes a coating section connected to the mixer section, The coating portion is At least one coating tube is provided through which the resin composition flowing in from the mixer section can pass, A discharge section including a storage space provided for accumulating the resin composition flowing in from at least one of the coating tubes, The case includes, A resin composition coating apparatus, wherein the case includes an inclined portion, the inclined portion having a predetermined inclination angle with respect to the surface to be coated.

18. The aforementioned discharge section is It includes a first surface and a second surface that face each other to form the storage space and each has a predetermined inclination angle with respect to the surface to which the resin composition is applied, The inclination angle of the first surface is smaller than or the same as the inclination angle of the second surface. The resin composition coating apparatus according to claim 17, wherein the predetermined inclination angle of the inclined portion is smaller than the inclination angle of the second surface.

19. The resin composition coating apparatus according to claim 17, wherein the case includes a plurality of inclined portions.

20. A housing equipped with a secure surface, A stacked battery arranged on the aforementioned mounting surface, A resin composition interposed between the adhesive surface and the stacked battery to bond the housing and the stacked battery, A battery assembly including, The ratio of the difference between the maximum thickness and the average thickness of the resin composition to the average thickness of the resin composition cured between the housing and the stacked battery is within 5%. A battery assembly in which the ratio of the difference between the minimum thickness of the resin composition and the average thickness relative to the average thickness is within 5%.

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