EV Battery Cooling Container With Nitrogen Runaway Suppression
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Solution Overview
Problem
Existing electric vehicle (EV) battery packs face risks of thermal runaway during manufacturing due to inadequate cooling systems, leading to potential fires and damage to facilities and personnel, with a need for a safety device that prevents temperature rise and automatically cools the battery packs.
Innovation Solution
A container-based safety system with a filtration system, thermal sensors, and a sprinkler system that dispenses cold nitrogen gas to cool the battery packs, maintaining a safe temperature and pressure environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If battery assembly process continues without adequate cooling, then productivity is maintained, but temperature rises causing thermal runaway risk
Solution Approach 1:
The cooling system is activated before thermal runaway occurs by monitoring temperature thresholds. The system performs preliminary cooling actions when temperature rises are detected during assembly, preventing the harmful effect of thermal runaway while maintaining continuous productivity.
2Temperature
If cooling system is added to battery assembly, then temperature control improves, but device complexity increases
Solution Approach 1:
The patent employs a gas-based cooling system where compressed gas is directed through nozzles onto the battery pack surface. This pneumatic approach provides effective cooling without the complexity of liquid cooling circuits, pumps, and fluid management systems, thereby improving temperature control while minimizing device complexity.
Solution Approach 2:
The cooling system is designed to automatically activate when temperature sensors detect elevated temperatures during battery assembly. The system self-regulates based on temperature feedback, eliminating the need for complex manual control mechanisms and reducing overall system complexity while maintaining effective temperature control.
3Reliability
If automatic cooling system is implemented, then safety improves, but ease of operation decreases
Solution Approach 1:
The cooling system incorporates temperature sensors that continuously monitor battery pack temperature and provide feedback to the control system. When temperature exceeds predetermined thresholds, the system automatically activates cooling. This feedback mechanism ensures reliable thermal runaway prevention while maintaining ease of operation through automated control rather than manual intervention.
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 system effectively prevents thermal runaway by automatically cooling EV battery packs, ensuring safety during manufacturing and reducing the risk of fires and damage.
Implementation Method 1
a sprinkler system to dispense cold nitrogen gas to cool the battery packs
Implementation Method 2
The system effectively prevents thermal runaway by automatically cooling EV battery packs
Implementation Method 3
a filtration system to filter contaminants and dirt present within the container
Data Source
AI summary
An Electric Vehicle (EV) battery cooling container used as a safety measure to prevent thermal runaway during EV battery pack manufacturing. The container can be integrated into EV manufacturing supply chains and employs cold gas for battery pack cooling. The container features a filtration system that filters contaminants inside the container, ensuring the battery pack's safety and cleanliness. Temperature sensors are installed in the supply line for detecting temperature of the EV battery and when high temperature is detected, a gate or door in the container automatically opens to accommodate the battery pack on a platform. The temperature sensors are also installed inside the container for detecting temperature of the battery pack inside the container for sprinkling the cold gas.