Battery Module Heat Radiation Paint Coating Layer
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Solution Overview
Problem
Conventional battery modules face challenges in effectively cooling high-power, high-capacity batteries due to heat accumulation, which can lead to deterioration and safety issues like ignition or explosion, especially in compact designs where traditional cooling methods are less effective.
Innovation Solution
A battery module with a heat radiation paint coating layer containing heat radiation materials like carbon and metal particles applied to components such as electrode leads, busbars, and the battery management system, enhancing cooling efficiency through radiation rather than conventional conduction or convection methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional cooling methods (thermal conduction, convection) are used in compact battery modules, then cooling efficiency deteriorates in closed spaces, but the patent applies heat radiation paint coating to improve cooling efficiency without requiring expanded surface area or complex cooling structures
Solution Approach 1:
The patent replaces conventional mechanical cooling systems (thermal conduction through metal heat sinks, convection through coolant flow) with a radiation-based cooling approach. Heat radiation paint coating layers are applied to battery surfaces and component surfaces, enabling heat dissipation through thermal radiation without requiring complex mechanical cooling structures, thereby reducing device complexity while improving temperature control in compact battery modules
Solution Approach 2:
The patent changes the thermal radiation parameters of battery components by applying paint coatings with specific radiation characteristics. The heat radiation paint coating layers have high emissivity in the infrared range, significantly enhancing the radiation heat transfer capability of battery surfaces and internal components, allowing effective cooling without increasing surface area or structural complexity
2Power
If high power and massive storage capacity batteries are used, then heat generation increases leading to heat accumulation and safety issues, but the patent uses heat radiation paint to efficiently radiate heat away without requiring larger cooling systems
Solution Approach 1:
The patent converts the harmful effect of high heat generation from high-power batteries into a beneficial radiation source. By applying heat radiation paint coating with high emissivity to battery surfaces and internal components, the abundant thermal energy that would otherwise cause heat accumulation and safety issues is efficiently converted into thermal radiation, which is emitted to the surrounding environment, thereby mitigating the harmful effects while maintaining high power output
Solution Approach 2:
The heat radiation paint coating acts as an intermediary between the battery components and the surrounding environment. The coating layers with high infrared emissivity serve as an efficient interface for thermal radiation transfer, enabling heat to be radiated away from high-temperature components like electrode leads and busbars without requiring direct contact with coolant or air, thus preventing heat accumulation and safety risks while maintaining high battery power
3Weight of moving object
If aluminum laminate sheet with polymer coating is used for pouch-type batteries, then weight and manufacturing cost are reduced, but heat dissipation becomes difficult due to low conductivity of the polymer coating
Solution Approach 1:
The patent changes the thermal radiation parameter of the polymer coating by applying heat radiation paint coating layers on top of the aluminum laminate sheet with polymer coating. These paint layers have high emissivity in the infrared range, transforming the low thermal conductivity polymer surface into an efficient thermal radiation interface, allowing heat to be effectively radiated away while maintaining the lightweight and low-cost advantages of the polymer-coated aluminum laminate structure
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 heat radiation paint coating layer improves cooling performance, reduces temperature, and extends the life expectancy of battery modules by efficiently radiating heat away from high-temperature components, preventing overheating and related performance degradation or explosions.
Implementation Method 1
a heat radiation paint coating layer including a heat radiation material in at least a portion of the constituting components
Data Source
AI summary
Provided herein is a battery module that is capable of improving cooling efficiency despite a compact structure without using numerous members. The battery module according to the present disclosure includes a battery stack where batteries are stacked; and a battery management system, and includes a heat radiation paint coating layer that includes a heat radiation material in at least a portion of the constituting components.