Electrochemically Actuated Electronic Component with Electrodeposition Control
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Solution Overview
Problem
Existing electrochemical actuation technologies face limitations in geometry, modulation ratio, and response time, with electrochemical actuation by insertion offering limited geometry and modulation, and filament formation providing only two states, whereas electrochemical actuation by filament formation is restricted by one-dimensional geometry and faster response times.
Innovation Solution
A new electrochemical actuation mode based on electrodeposition of a metallic layer, where ions migrate from a storing electrode to a current collector through an ionic conductor, allowing for the formation and removal of an electrodeposit between electrodes, enabling multiple response states and precise control over the electrodeposit's thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If ion insertion mechanism is used for electrochemical actuation, then the component can achieve low energy consumption and low actuating voltage, but the geometry and modulation ratio are limited
Solution Approach 1:
The patent changes the fundamental actuation mechanism from ion insertion to electrodeposition, transforming the physical process from intercalation into metallic layer formation. This parameter change enables continuous modulation of the electrodeposit thickness, achieving high modulation ratio while maintaining low energy consumption and low actuating voltage characteristics of electrochemical systems.
Solution Approach 2:
The patent employs composite structures combining ionic conductors with electrodeposition-capable materials, creating a system that leverages both the low-energy electrochemical actuation and the high-modulation-ratio metallic deposition. The ionic conductor enables ion transport while the electrodeposition process forms the functional metallic layer, achieving versatility without sacrificing energy efficiency.
2Adaptability or versatility
If filament formation through ionic conductor is used, then high modulation ratio can be achieved, but response time is limited
Solution Approach 1:
The patent extracts the limiting factor of filament formation (slow ion transport through bulk ionic conductor) by confining the electrochemical reaction to the electrode surface. Instead of forming filaments through the entire ionic conductor thickness, the electrodeposition occurs at the electrode-ionic conductor interface, dramatically reducing the transport distance and response time while maintaining high modulation ratio through controlled deposition thickness.
Solution Approach 2:
The patent transitions from one-dimensional filament formation through the bulk to two-dimensional surface electrodeposition. By depositing metallic layers on the electrode surface rather than forming conductive filaments through the ionic conductor volume, the system achieves faster response times while maintaining high modulation ratio through precise control of deposit thickness and area.
3Stress or pressure
If conventional electrochemical actuation modes are used, then low actuating voltage is achieved, but the precision and control of component properties are limited
Solution Approach 1:
The patent implements feedback control by measuring the electrical characteristics (resistance, capacitance, or inductance) of the component and using this information to adjust the electrodeposition parameters. This closed-loop approach enables precise control of the electrodeposit thickness and properties while maintaining low actuating voltage, achieving nanoscale precision through iterative measurement and adjustment.
Solution Approach 2:
The patent replaces traditional mechanical or thermal control methods with electrochemical electrodeposition controlled by electrical parameters. By using voltage, current, and time as control variables instead of mechanical positioning or thermal processing, the system achieves superior precision in controlling component properties such as layer thickness, conductivity, and geometry while operating at low voltages.
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
This approach enables tuneable components with high modulation ratio, volumic geometry, and shorter response times, overcoming the limitations of previous methods by allowing multiple states and precise control over the electrodeposit's thickness, enhancing the performance of electrochemical actuation.
Implementation Method 1
migration of ions from the storing electrode to the first actuating electrode forming thereon an electrochemical deposition through the ionic conductor
Implementation Method 2
electrochemical deposition through the ionic conductor
Implementation Method 3
dissolution of the electrochemical deposition and for measuring... a modification of at least one characteristic... induced by the formation of the electrochemical deposition or by the at least partial dissolution thereof
Implementation Method 4
migration of ions from the storing electrode to the first actuating electrode
Data Source
AI summary
An electrochemically actuatable electronic component comprises: a substrate; at least one first and one second actuating electrodes; at least one first and one second measuring electrodes; at least one storing electrode configured to free ions under the action of the actuating electrodes; at least one ionic conductor able to conduct the ions and that is located in a region placed between the measuring electrodes; a device suitable for: applying a voltage or a current between the first and second actuating electrodes to allow the migration of ions from the storing electrode to the first actuating electrode forming thereon an electrochemical deposition through the ionic conductor and for measuring, between the first and second measuring electrodes, a modification of at least one characteristic of the region placed between the first and second measuring electrodes, to determine at least one characteristic of the electronic component.