Polygonal Rechargeable Battery Module Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cylindrical rechargeable batteries have lower spatial efficiency and difficulty in cooling due to their curved structure, making it challenging to configure high-energy-density modules with effective cooling systems.
Innovation Solution
A rechargeable battery module with unit batteries having a polygonal column shape and groove portions for easy configuration and improved cooling efficiency, featuring a cooling part with multiple tubes for fluid circulation and a multi-layered cooling plate for efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If cylindrical rechargeable batteries are used, then energy density is improved, but spatial efficiency deteriorates
Solution Approach 1:
The patent applies the inverse of spheroidality by using a polygonal column shape (flat surfaces) instead of a cylindrical curved shape. This allows the battery modules to pack more efficiently in rectangular spaces, improving spatial efficiency while maintaining comparable energy density through optimized electrode assembly configuration.
2Use of energy by moving object
If cylindrical rechargeable batteries are used, then energy density is improved, but cooling system installation difficulty increases
Solution Approach 1:
By using a polygonal column shape with flat lateral surfaces instead of a curved cylindrical shape, the patent enables straightforward attachment of cooling plates and cooling fins to the battery module housing. The flat surfaces provide optimal contact areas for thermal management components, dramatically improving cooling efficiency.
Solution Approach 2:
The patent introduces groove portions at specific locations on the battery module housing to locally accommodate cooling fins. This localized structural modification enables effective heat dissipation without compromising the overall energy density of the battery module.
3Volume of moving object
If polygonal column shape is used, then spatial efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The patent segments the case structure into modular components: a main housing with polygonal column shape and integrated groove portions. This segmentation allows the cooling fins to be installed in predefined grooves without requiring complex integrated molding, simplifying the manufacturing process while maintaining the space-efficient polygonal shape.
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 polygonal column shape enhances spatial efficiency and facilitates easy cooling system installation, improving the module's energy density and cooling efficiency while maintaining high stability and service life.
Implementation Method 1
The inflow part, the outflow part, and the rotating part may be configured to circulate a cooling fluid
Data Source
AI summary
In a rechargeable battery module including a plurality of unit batteries, the unit batteries include: an electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a case having a polygonal column shape for accommodating the electrode assembly; and first and second plates respectively sealing openings formed at opposite sides of the case, wherein a surface of the case of a unit battery of the unit batteries contacts a neighboring unit battery of the unit batteries.