Reconfigurable Liquid Metal Graphene Power Source
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Solution Overview
Problem
Current power sources for complex technological devices lack high physical stability, fast ion transport, and efficient power distribution among various loads, making them inadequate for robust and flexible applications.
Innovation Solution
A reconfigurable power source combining a monolayer or multi-layer graphene with a low-melting-point liquid metal alloy, such as Galinstan, within an electrolyte, which forms an electrical double layer to generate power and can be easily refreshed by reversing the current to remove oxide layers, allowing for efficient power distribution and adaptation to different loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional power sources are used for complex technological devices, then device complexity increases, but physical stability and power distribution efficiency deteriorate
Solution Approach 1:
The patent employs a liquid metal alloy instead of conventional solid electrodes, enabling the power source to dynamically reconfigure its internal structure. The liquid metal can flow and reshape itself in response to external stimuli, allowing the device to adapt its morphology for optimal power distribution while maintaining physical stability through controlled dynamics
Solution Approach 2:
The invention utilizes changes in physical parameters such as temperature and electrical current to control the state and behavior of the liquid metal alloy. By adjusting these parameters, the power source can transition between different operational states, optimizing both stability and adaptability for complex device configurations
2Device complexity
If conventional power sources are used, then device simplicity is maintained, but ion transport speed and power distribution efficiency worsen
Solution Approach 1:
The patent applies hydraulic principles by using the liquid metal alloy as an ionic conductor medium. The liquid nature of the metal enables rapid ion transport through the electrolyte, significantly improving ion mobility compared to conventional solid-state power sources while maintaining a relatively simple device structure
Solution Approach 2:
The invention combines liquid metal alloy with graphene and electrolyte to create a composite power source system. This composite structure leverages the high electrical conductivity of liquid metal, the exceptional properties of graphene, and the ionic conductivity of the electrolyte to achieve fast ion transport without excessive device complexity
3Ease of manufacture
If fixed power sources are used, then manufacturing simplicity is maintained, but adaptability to varying loads deteriorates
Solution Approach 1:
The liquid metal alloy enables the power source to dynamically adapt to varying load requirements by reconfiguring its internal structure in real-time. This dynamic capability allows the device to optimize power distribution for different load conditions without requiring complex manufacturing processes
Solution Approach 2:
The invention creates a universal power source that can serve multiple functions and adapt to various load types. The liquid metal-based system can reconfigure itself to provide optimal performance for different electrical loads, enhancing versatility while maintaining manufacturing simplicity through a unified design approach
4Reliability
If oxide layers form on liquid metal, then power source durability improves through protection, but electrical conductivity and performance deteriorate
Solution Approach 1:
The patent converts the harmful effect of oxide layer formation into a beneficial feature. The oxide layer that naturally forms on the liquid metal surface is utilized as a protective barrier that prevents further degradation while the system periodically removes these layers through reverse current application, thereby maintaining high electrical conductivity. This approach transforms a potential disadvantage into a protective mechanism that enhances overall power source durability
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 solution provides a durable, flexible, and efficient power source with adjustable voltage and capacitance, capable of reconfiguring to meet the power needs of complex systems like MEMS, minimizing idle power losses and maintaining performance across varying loads.
Implementation Method 1
The power source combines the high energy density graphene contact with the strain-robust liquid metal contact
Implementation Method 2
liquid metal and graphene power source generates power by liquid metal creating an electrical double layer (EDL) in electrolyte
Implementation Method 3
can be easily refreshed by reversing the current to remove oxide layers
Data Source
AI summary
A device includes an electrolyte disposed between a layer of graphene and liquid metal. A system based upon the device includes a substrate having first and second layers of graphene and an enclosure disposed thereon. The enclosure encases the first and second layers of graphene and has a channel formed therein. A first end of the channel is disposed over at least a portion of the first layer of graphene and a second end of the channel is disposed over at least a portion of the second layer of graphene. An electrolyte disposed within the channel. Liquid metal is disposed within the electrolyte such that the liquid metal is separated from the first layer of graphene and the second layer of graphene by the electrolyte. The liquid metal is movable within the electrolyte to reconfigure power delivery to different connected loads.