Battery Module Cooling Layout for Uniform Temperature Control
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Solution Overview
Problem
Existing battery cooling systems face inefficiencies in heat management and safety, particularly in secondary batteries used in mobile devices and electric vehicles, leading to issues like heat generation and potential fires, while also contributing to carbon emissions.
Innovation Solution
A battery module cooling system that controls the flow rate and velocity of a cooling fluid through multiple parallel systems, adjusting the flow rates and velocities based on temperature increases and system stages to optimize cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single parallel cooling system is used for all battery modules, then the system structure is simple, but the cooling efficiency is insufficient and temperature distribution is uneven
Solution Approach 1:
The cooling system is divided into multiple parallel cooling systems, each independently cooling a subset of battery modules. This segmentation allows each subsystem to maintain better temperature uniformity while the overall system remains manageable in complexity through modular architecture.
2Temperature
If high flow rate is used throughout the cooling system, then cooling efficiency is improved, but energy consumption increases
Solution Approach 1:
The flow rate of cooling fluid is dynamically adjusted in each parallel cooling system based on the thermal load and temperature characteristics of the battery modules being cooled. This allows optimization of cooling efficiency while minimizing energy consumption by using higher flow rates only where and when needed.
Solution Approach 2:
Different flow rates are applied to different parallel cooling systems according to the local thermal requirements of battery modules. Systems cooling modules with higher thermal loads receive higher flow rates, while others receive lower flow rates, optimizing overall energy efficiency.
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
Enhances cooling efficiency, reduces energy consumption, and decreases carbon emissions by stabilizing temperature control across battery modules, thereby improving safety and operational efficiency.
Implementation Method 1
a first parallel system configured by fluidly connecting n battery modules in parallel to which the cooling fluid introduced from the inlet is supplied
Implementation Method 2
a battery module cooling system, which is effective to increase the cooling efficiency of battery modules and improve the efficiency of cooling fluid use by controlling the flow rate and speed (velocity) of a cooling fluid circulated to cool the battery modules
Data Source
Figure 1
Figure 2
AI summary
Proposed is a battery module cooling system including an inlet into which cooling fluid is introduced, a first parallel system configured by connecting n battery modules in parallel to which the cooling fluid introduced from the inlet is supplied, a second parallel system configured by connecting m battery modules in parallel, with m being a number less than n, to which the cooling fluid flowing out from the first parallel system is supplied, a third parallel system composed of a single battery module, with m being a number more than 1, or configured by connecting s battery modules in parallel, with s being a number less than m, to which the cooling fluid flowing out from the second parallel system is supplied, and an outlet through which the cooling fluid that has passed through the third parallel system flows out.