Battery Module Pressing Jig With Switchable Heating and Cooling

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Solution Overview

Problem

Conventional battery module manufacturing processes are inefficient due to separate hardening and cooling processes, leading to prolonged production times and temperature deviations, which increase overall process time and reduce productivity.

Innovation Solution

A battery module manufacturing apparatus with a temperature conversion unit that can switch between heating and cooling functions using a thermoelectric device, such as a Peltier element, to simultaneously harden adhesives and cool the module, eliminating the need for additional cooling processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a separate cooling apparatus is used to cool the battery module after high-temperature hardening, then temperature uniformity is improved, but production time is lengthened and process complexity increases

Engineering Contradiction:
Improvetemperature uniformityVSAvoidproduction time
Core Design Contradiction:
TemperatureVSLoss of time

Solution Approach 1:

The patent combines the cooling function with the pressing apparatus by integrating a cooling device into the pressing jig, allowing the same apparatus to perform both pressing and cooling operations. This eliminates the need for a separate cooling apparatus and reduces process time while maintaining temperature uniformity through coordinated control of pressing and cooling functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The pressing apparatus is designed to perform multiple functions: it can apply pressing force to the battery module and simultaneously provide cooling through the integrated cooling device. This multi-functionality reduces the number of separate apparatuses needed and streamlines the manufacturing process.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If high-temperature hardening is used to reduce adhesive hardening time, then productivity is improved, but temperature deviation between cells occurs

Engineering Contradiction:
Improvehardening speedVSAvoidtemperature uniformity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent incorporates temperature sensors to detect the temperature of each cell during the hardening process. The control unit receives this temperature information and adjusts the heating and cooling operations to maintain temperature uniformity across all cells, preventing temperature deviation while achieving rapid hardening.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent dynamically adjusts heating and cooling parameters based on real-time temperature measurements. By changing the temperature parameters of the heating and cooling devices according to the actual state of each cell, the system achieves both rapid hardening and temperature uniformity.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If multiple separate processes (hardening then cooling) are used, then each process can be optimized, but overall process complexity and production time increase

Engineering Contradiction:
Improveprocess optimizationVSAvoidprocess complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the hardening and cooling processes into a single integrated operation by combining the heating device and cooling device within the same pressing apparatus. This allows both processes to be optimized simultaneously while reducing overall process complexity and eliminating the need for separate processing steps.

Inventive Principle:
Principle #5Merging (Combining)

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 simplifies the manufacturing process, reduces production time, and improves efficiency by integrating heating and cooling functions in a single apparatus, thereby enhancing productivity and quality by preventing temperature deviations and movement-related impacts.

Implementation Method 1

The temperature convertor may include a thermoelectric device, and the thermoelectric device may heat or cool a battery module located at an upper end of the base jig by changing a direction in which current is supplied to the thermoelectric device

Methodology Applied
Scientific EffectPeltier effect: Peltier Effect

Data Source

PatentUS20240154230A1Battery module manufacturing apparatus capable of switching between heating function and cooling function and battery module manufacturing method using the same
Publication Date: 2024.05.09 LG ENERGY SOLUTION LTD
  • US20240154230A1 patent drawing
  • US20240154230A1 patent drawing
  • US20240154230A1 patent drawing

AI summary

A battery module manufacturing apparatus is capable of switching between a heating function and a cooling function and a manufacturing method using the same, and more particularly to a battery module manufacturing apparatus including a pressing jig and a base jig located under the pressing jig. The base jig includes a temperature conversion unit capable of switching between a heating function and a cooling function, and a battery module manufacturing method using the same.