Secondary Battery Packaging Bag Corner Protection

The patent applies composite materials by combining the plastic sealing film packaging bag with an easy-peel adhesive tape that has a specific structure including overlapping lugs. The adhesive tape acts as a protective composite layer that reinforces the corners of the packaging bag, preventing damage while maintaining the simplicity of the original packaging structure. This resolves the contradiction by adding a protective element that does not complicate the manufacturing process significantly.

The patent implements beforehand cushioning by designing the easy-peel adhesive tape with overlapping lugs that extend beyond the edges of the packaging bag. These lugs are positioned in advance to cover and protect the corners before any damage can occur during use. The adhesive tape is applied beforehand to ensure the corners are reinforced against potential impacts or stresses.

The patent applies segmentation by dividing the easy-peel adhesive tape into distinct functional regions: surface regions that adhere to the packaging bag, side surface regions that wrap around edges, and lugs that extend to protect corners. This segmented design allows each part to perform its specific function efficiently while keeping the overall structure manageable and not excessively complex.

The easy-peel adhesive tape serves multiple functions simultaneously: it adheres the packaging bag to the battery compartment, protects the corners from damage, and provides a means for easy removal when needed. By combining these functions into a single component, the patent avoids adding multiple separate parts, thus limiting the increase in device complexity while achieving improved durability.