Asymmetric Resonator Positioning for Wireless Battery Clusters
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Solution Overview
Problem
Wireless energy transfer between batteries is affected when resonators in close proximity interact, leading to reduced energy reception due to perturbations in inductance, resistance, and resonant frequency, making it challenging to maintain efficient energy transfer in devices with multiple batteries.
Innovation Solution
The design of wireless batteries with asymmetrically positioned resonators on flexible substrates, configured for weak coupling, either through static tuning, active tuning, or strategic positioning to minimize perturbations, ensuring efficient energy transfer regardless of proximity to other batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resonators are placed in close proximity for wireless energy transfer, then wireless charging capability is enabled, but resonator interaction causes perturbations in inductance, resistance, and resonant frequency reducing energy reception efficiency
Solution Approach 1:
The resonator is positioned asymmetrically within the battery enclosure rather than at the center. This asymmetric positioning creates weak coupling between adjacent battery resonators, minimizing mutual interference and perturbations when batteries are placed in close proximity, thereby maintaining reliable energy reception efficiency while enabling wireless charging capability
Solution Approach 2:
The resonator is specifically positioned at a location within the battery enclosure where it experiences minimal interaction with adjacent batteries. This local optimization of resonator placement reduces coupling effects in multi-battery configurations while maintaining effective wireless energy transfer in single-battery operation
2Reliability
If resonators are positioned to minimize coupling between batteries, then energy transfer efficiency is maintained, but precise positioning requirements increase system complexity
Solution Approach 1:
The asymmetric positioning of the resonator within the standardized battery enclosure creates an inherent spatial configuration that minimizes coupling between adjacent batteries. This design embeds the positioning solution directly into the battery structure, eliminating the need for complex active positioning mechanisms or precise alignment systems while maintaining high energy transfer efficiency
3Adaptability or versatility
If resonators are placed in standardized battery enclosures, then battery compatibility is improved, but resonator interaction increases due to fixed close proximity
Solution Approach 1:
By positioning the resonator asymmetrically within the standardized battery enclosure, the design maintains compatibility with standard battery form factors while simultaneously minimizing resonator interaction. The asymmetric placement creates weak coupling between adjacent batteries in the fixed configuration, reducing harmful interactions without compromising battery compatibility
Solution Approach 2:
The resonator is positioned at a specific location within the standardized enclosure where local field distribution minimizes interaction with neighboring batteries. This local optimization allows the use of standard battery forms while reducing the harmful effects of resonator coupling in multi-battery configurations
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 allows wireless batteries to maintain efficient energy transfer performance both when alone and in clusters, reducing the need for precise positioning and minimizing the impact of perturbations, thus ensuring consistent energy reception and reduced system complexity.
Implementation Method 1
batteries may wirelessly capture energy from a source and recharge without having to be precisely positioned in a charger
Implementation Method 2
Resonators and electronics may be integrated or located next to batteries enabling wireless energy transfer to the batteries
Data Source
AI summary
A wireless energy transfer enabled battery includes a resonator that is positioned asymmetrically in a battery sized enclosure such that when two wirelessly enabled batteries are placed in close proximity the resonators of the two batteries have low coupling.