Sealing method for battery container

摘要

A sealing method for battery containers which employs a first fixture to engage with the outer peripheries of edges of an opening of a container made from metal sheets, in order to define a shape of the opening of the container; then a second fixture is inserted into an inner space of the container from its opening, so that the edges of the opening of the container are shaped due to the ductility and malleability properties of metal sheets, and lateral surfaces of the container are made flat; lastly, a cover is placed on the opening of the container to have the container sealed by a welding means. The sealing method can restore an original shape of the container from a deformed state by using the fixtures, so that an entire sealing process for battery containers can be executed by automation in order to save labor costs.

主权项

1. A sealing method for battery containers, applied to secondary batteries and a cover is placed on an opening of a container formed from metal sheets, then by using a welding means, the cover and corresponding edges of the container are welded together, the method including:
using a first fixture to engage with outer periphery of edges of the opening of the container to define a shape of the opening of the container; inserting a second fixture into an inner space of the container from the opening, and then drawing the second fixture out from the inner space of the container, so that the shape of the opening of the container is fixed, and lateral surfaces of the container are made flat; placing the cover on the opening of the container, and performing the welding means to weld the cover with the container together.