Sealed Battery Drying with a Heat-Retaining Placing Table
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for manufacturing sealed batteries require a long drying time to remove moisture from the battery case, which reduces manufacturing efficiency.
Innovation Solution
A method involving a drying oven with a warming member on a placing table, where the warming member retains heat from the oven to efficiently dry the battery assembly, and air is blown from the opposite direction for cooling, allowing for reduced drying time while maintaining uniform temperature distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery assembly is dried for a long time to remove moisture inside the case, then the moisture removal is reliable, but the manufacturing efficiency decreases
Solution Approach 1:
A warming member is introduced as an intermediary between the drying oven and the battery assembly. The warming member absorbs and stores heat from the drying oven, then releases it directly to the battery assembly, creating a more efficient heat transfer pathway that reduces drying time while maintaining reliability
Solution Approach 2:
The warming member is pre-heated in the drying oven before the battery assembly is placed on it. This preliminary heating action stores thermal energy in the warming member, which then continuously supplies heat to the battery assembly during the drying process, accelerating moisture removal
2Productivity
If the drying time is reduced to improve manufacturing efficiency, then productivity increases, but the moisture removal reliability decreases
Solution Approach 1:
The warming member acts as a thermal mediator that maintains consistent heat supply to the battery assembly even when the drying oven temperature fluctuates or when drying time is reduced, ensuring reliable moisture removal throughout the shortened process
3Speed
If the warming member is placed in the drying oven to heat the battery assembly efficiently, then the drying speed increases, but the temperature distribution uniformity may be affected
Solution Approach 1:
The warming member is positioned at a specific location (outer edge portion) of the placing table to provide concentrated local heating. This creates a temperature gradient that compensates for heat loss in specific areas, maintaining overall temperature uniformity while accelerating drying where needed
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
This approach enables efficient drying of sealed battery assemblies in a shorter time, improving manufacturing efficiency and preventing temperature drops, thus enhancing the performance of the batteries by removing moisture effectively.
Implementation Method 1
Heat from the drying oven is held in the warming member placed close to the battery assembly. This allows efficient heating of the battery assembly.
Implementation Method 2
air is blown from a direction in which the warming member is not installed. With such a configuration, the battery assembly can be efficiently cooled in the cooling after the drying.
Data Source
AI summary
The present disclosure provides a method of manufacturing a sealed battery, by which battery assemblies can be dried properly even when the time for the drying is reduced. The manufacturing method disclosed herein includes: loading, in a drying oven, a placing table with a battery assembly placed thereon in a drying oven, the battery assembly housing an electrode body inside a case; drying by increasing a temperature of the battery assembly in the drying oven to remove moisture inside the case; and cooling the battery assembly. In the manufacturing method disclosed herein, the warming member is placed on the placing table. This allows the battery assemblies to be properly dried even when the time for the drying is reduced.