Battery Module Cartridge Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery modules are not suitable for all-solid-state batteries due to their low ionic conductivity at room temperature, leading to poor performance and safety concerns such as electrolyte leakage and gas generation, and require structures that maintain high temperatures to improve performance, which is not compatible with traditional liquid-electrolyte battery modules.
Innovation Solution
A battery module with a novel cartridge structure incorporating heat insulating members and a heating system to maintain a stable high temperature environment for all-solid-state batteries, using materials like glass wool and polystyrene for insulation and a heating member to ensure optimal performance and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional battery module structures with cooling fins are used, then temperature control for liquid-electrolyte batteries is improved, but suitability for all-solid-state batteries deteriorates
Solution Approach 1:
Instead of cooling the battery as in traditional designs, the patent inverts the approach by heating the battery module. The heating device raises and maintains temperature at levels optimal for all-solid-state battery performance, reversing the conventional temperature control strategy to accommodate the specific requirements of solid-state chemistry.
Solution Approach 2:
The patent changes the temperature parameter from ambient or cooled conditions to elevated maintained temperature. This parameter change transforms the operating environment to be suitable for all-solid-state batteries, enabling them to function effectively while maintaining their safety advantages.
2Reliability
If heating devices are added to maintain high temperature, then performance of all-solid-state batteries is improved, but device complexity increases
Solution Approach 1:
The heating device is integrated into the battery module structure to serve multiple functions: it heats the battery to maintain optimal temperature for ionic conductivity, and its structure is designed to work within the existing module architecture. This multi-functionality approach reduces overall system complexity despite adding heating capability.
Solution Approach 2:
The heating function is merged with the battery module structure rather than being a separate external system. The heating device is positioned and integrated within the module to efficiently transfer heat to batteries while utilizing existing structural elements, thereby minimizing additional complexity.
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 provides stable operational performance and enhanced safety for all-solid-state batteries by maintaining temperatures above room temperature, reducing the risk of electrolyte leakage and gas generation, and eliminating the need for additional heating devices, thus improving the module's overall efficiency and reliability.
Implementation Method 1
a heat insulating member (110)
Implementation Method 2
a heating member (160)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The present disclosure provides a cartridge having a novel structure for guaranteeing stable operational performance of a secondary battery that operates at a high temperature or has improved performance at a high temperature, and a battery module including the cartridge. The battery module of the present disclosure include: at least one secondary battery; and a cartridge receiving at least a portion of the secondary battery and configured to be stacked in at least one direction, the cartridge including a heat insulating member.