Pouch Battery Side Folding Die for Single-Pass Fold Formation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing apparatuses for folding the sides of pouch-type batteries are complex and time-consuming, particularly due to secondary folding after primary folding, which complicates the process and increases the risk of failure.
Innovation Solution
A die and method for folding sides of pouch-type batteries that includes a folding formation space with an inlet and outlet, allowing sides to be gradually folded through a transfer unit, with optional heating and post-processing, using a left and right die configuration to simplify the folding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If secondary folding is performed after primary folding using existing apparatuses, then the side folding is completed, but the configuration becomes complicated and work time increases
Solution Approach 1:
The die is divided into distinct functional zones: an inlet portion for receiving the pouch-type battery, a folding formation space with tapered walls for creating fold lines, and an outlet portion for discharge. This segmentation allows each zone to perform its specific function efficiently without requiring complex multi-stage apparatuses.
Solution Approach 2:
The folding formation space is pre-configured with tapered side walls that gradually guide the terrace material to form fold lines before the battery exits the die. This preliminary shaping action eliminates the need for subsequent secondary folding operations, simplifying the overall apparatus configuration.
2Reliability
If secondary folding is performed after primary folding using existing apparatuses, then the side folding is completed, but work time increases
Solution Approach 1:
The folding formation space maintains continuous tapered side walls from the inlet to the outlet, enabling the terrace to be folded into the desired configuration in a single continuous passage through the die. This eliminates interruptions and secondary operations, significantly reducing work time while ensuring complete folding.
3Manufacturing precision
If a tapered folding formation space is used, then the terrace is gradually folded to form fold lines, but the die structure becomes more complex
Solution Approach 1:
The tapered side walls are implemented only in the folding formation space where fold line creation is required, while other portions of the die maintain simple rectangular structures. This localized application of complexity achieves precise fold line formation without making the entire die structure unnecessarily complex.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables efficient side folding with reduced complexity, lower maintenance risk, and space requirements, allowing for various folding configurations such as primary to quaternary folding.
Implementation Method 1
the apparatus for folding sides of a pouch-type battery may further include a die heating unit that heats the die at a predetermined temperature
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
An apparatus and a method for folding sides of a pouch-type battery and a die for the same are disclosed. The apparatus for folding sides of a pouch-type battery includes a die including a folding formation space including an inlet through which a side of a pouch-type battery enters, an outlet through which the side of the pouch-type battery exits, and a side opening formed on one side of the die to guide the side of the pouch-type battery to pass therethrough, and a transfer unit that transfers the pouch-type battery along a longitudinal direction of the die. A space between the inlet and the outlet of the folding formation space is formed so that the side of the pouch-shaped battery having entered the inlet is gradually folded while moving and finally the outlet has a final folding shape.