Battery Assembly With Selectively Decoupling Adhesive for Serviceability
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Solution Overview
Problem
Existing battery assemblies face challenges in efficient servicing, including recycling and replacement of components to extend service life, due to lack of effective decoupling mechanisms.
Innovation Solution
Incorporation of a selectively decoupling adhesive layer, such as vitrimer adhesives with ferromagnetic particles, that responds to trigger stimuli like heat or high-intensity focused ultrasound to decouple battery components, allowing for easy disassembly and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional permanent adhesives are used to bond battery components, then bonding strength is improved, but serviceability deteriorates
Solution Approach 1:
The adhesive layer transitions from a static permanent bond to a dynamic controllable bond. The adhesive maintains strong bonding under normal conditions but can be selectively deactivated by applying specific stimuli (heat, ultrasound, chemicals) to enable component separation for servicing while preserving bonding strength during operation.
Solution Approach 2:
The adhesive's bonding properties are changed by modifying physical or chemical parameters through external stimuli. Applying heat, ultrasound, or chemical agents alters the adhesive's state or properties, causing it to lose bonding capability temporarily or permanently, thereby enabling controlled disassembly while maintaining strong bond during normal use.
2Reliability
If battery assemblies are designed for durability, then reliability is improved, but disassembly difficulty increases
Solution Approach 1:
The adhesive layer acts as an intermediary element between battery components. It provides durable bonding during normal operation but serves as a controlled failure point that can be selectively activated through external stimuli, allowing easy disassembly without compromising overall assembly durability during service operations.
3Strength
If strong bonding is used to secure battery components, then structural integrity is improved, but component replacement efficiency deteriorates
Solution Approach 1:
The bonding system is segmented into two functional layers: a primary adhesive layer providing structural integrity and a selectively decoupling adhesive layer enabling controlled separation. This segmentation allows the battery assembly to maintain strong structural bonding during operation while enabling efficient component replacement through selective activation of the decoupling layer.
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
Facilitates efficient disassembly and replacement of battery components, enhancing serviceability and extending the life of battery assemblies.
Implementation Method 1
the selectively decoupling adhesive layer decouples the second battery component portion from the primary adhesive layer and the first battery component portion in response to a trigger stimuli
Implementation Method 2
responds to trigger stimuli like heat or high-intensity focused ultrasound to decouple battery components
Data Source
AI summary
A battery assembly is provided. The battery assembly includes a first battery component portion and a second battery component portion. A primary adhesive layer is coupled to the first battery component portion and is disposed between the first and second battery component portions. A selectively decoupling adhesive layer is disposed between the primary adhesive layer and the second battery component portion. The selectively decoupling adhesive layer couples the second battery component portion with the primary adhesive and the first battery component portion. The selectively decoupling adhesive layer decouples the second battery component portion from the primary adhesive layer and the first battery component portion in response to a trigger stimuli.