Compressed Electrode Stack Assembly for Battery Cooling
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Solution Overview
Problem
Existing energy storage devices, particularly batteries, face challenges in achieving a compact design with improved cooling properties, which is essential for preventing degradation and extending the lifespan of the cells.
Innovation Solution
A method for producing energy storage devices involves compressing an electrode stack and heating it while in a compressed state, which allows for increased heat dissipation and mechanical stability, thereby achieving a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electrode stack is compressed to achieve compact design, then the volume and size are reduced, but the heat dissipation capability deteriorates
Solution Approach 1:
The patent introduces cooling channels within the electrode stack structure, transitioning from surface-level cooling to three-dimensional heat dissipation. The cooling channels are integrated into the electrode stack, allowing heat to be dissipated from the interior volume rather than just the external surfaces, thus achieving effective heat management in a compact design.
2Temperature
If cooling channels are integrated into the electrode stack to improve heat dissipation, then the thermal management is enhanced, but the production complexity increases
Solution Approach 1:
The patent merges the cooling function with the electrode stack structure by integrating cooling channels directly into the electrode assembly. This combination eliminates the need for separate cooling systems and simplifies the manufacturing process, as the cooling channels are formed during the electrode stack assembly process rather than requiring additional post-processing steps.
Solution Approach 2:
The electrode stack structure itself serves the dual function of energy storage and thermal management. The cooling channels are built into the electrode stack, allowing the structure to self-regulate its temperature without requiring external cooling systems, thus reducing production complexity while maintaining effective heat dissipation.
3Volume of moving object
If the electrode stack is compressed to increase density, then the energy capacity per volume is improved, but the mechanical stability deteriorates
Solution Approach 1:
The patent applies controlled compression to the electrode stack, optimizing the density parameter while maintaining mechanical integrity. The compression process is carefully managed to achieve the desired energy density without exceeding the mechanical limits of the electrode materials, thus balancing energy capacity and structural stability.
Solution Approach 2:
The electrode stack utilizes composite material structures that combine different materials with complementary properties. The composite construction provides both high energy density and enhanced mechanical stability, allowing the compressed electrode stack to maintain its structural integrity while achieving compact dimensions and high energy capacity.
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 method results in energy storage devices with enhanced cooling capabilities and mechanical stability, leading to improved performance and extended lifespan, while also facilitating easy, automatable, and scalable production.
Implementation Method 1
compressing an electrode stack and heating it while in a compressed state
Implementation Method 2
heating it while in a compressed state, which allows for increased heat dissipation
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
The present disclosure relates to a method for producing an energy storage device (1). In order to attain an energy storage device (1) with improved cooling and an easy, automatable and scalable way to produce such an energy storage device (1) a method for producing such an energy storage device (1) is required. For this reason, a method for producing an energy storage device (1) is disclosed, the method comprising: providing an electrode stack (2) comprising at least two electrodes (3) having each a tab (4), wherein a separator (5) is arranged between the electrodes (3), compressing the electrode stack (2), and heating the electrode stack (2) while the electrode stack (2) is in a compressed state.