Solid-State Energy Store Layer Stack for Circuit Board Miniaturization
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Solution Overview
Problem
The increasing miniaturization of electrical components leads to a larger volume occupancy by batteries, and there is a risk of sudden power loss due to contact issues in devices without batteries, necessitating a more efficient and compact energy supply solution.
Innovation Solution
A solid-state energy store with a layer stack configuration of solid-state electrodes and electrolytes, integrated into or on a circuit board, providing higher energy density and compatibility with miniaturization trends, eliminating liquid components and maintaining reliability and temperature resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a conventional battery is used to supply electrical energy, then the energy supply is provided, but the volume occupied by the battery increases as miniaturization progresses
Solution Approach 1:
The patent changes the physical state of the electrolyte from liquid to solid, fundamentally altering the energy storage system's parameters. This solid-state transformation enables higher energy density while reducing the volume required for the same energy capacity, directly resolving the contradiction between energy supply and battery volume in miniaturized devices
Solution Approach 2:
The invention employs composite material structures with multiple layers including solid electrolytes, electrodes, and protective coatings. These composite materials achieve superior energy density and compactness compared to conventional batteries, allowing reduced volume while maintaining adequate energy supply for miniaturized electrical devices
2Quantity of substance
If a conventional battery with liquid electrolyte is used, then energy storage is achieved, but the device requires maintenance and has temperature limitations
Solution Approach 1:
The patent transforms the electrolyte from liquid to solid state, eliminating the harmful properties of liquid electrolytes such as leakage and temperature sensitivity. This parameter change achieves maintenance-free operation and enhanced temperature resistance while preserving energy storage capability, directly resolving the reliability contradiction
Solution Approach 2:
The invention converts the potential harm of liquid electrolytes (leakage, degradation, temperature limitations) into benefits by using solid-state materials. The solid electrolyte provides inherent leakage prevention, improved thermal stability, and extended operational temperature ranges, transforming previous weaknesses into strengths for more reliable energy storage
3Length of moving object
If the energy store uses a layer stack construction with thin layers, then the design height is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the energy store into segmented thin layers arranged in a stack configuration. This segmentation reduces the overall design height while enabling standardized manufacturing processes for each layer, thereby managing manufacturing precision requirements through modular construction rather than requiring extreme precision in monolithic structures
Solution Approach 2:
The invention transitions from a conventional three-dimensional bulky battery design to a planar layer-stack architecture. By stacking thin layers in the vertical dimension, the design achieves reduced height while distributing manufacturing precision requirements across multiple manageable layers rather than demanding extreme precision in a single thick component
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 solid-state energy store offers a reliable, maintenance-free, and temperature-resistant energy supply with enhanced energy density, allowing for further miniaturization and integration with standard circuit board processing, ensuring continuous power and reduced device height.
Implementation Method 1
The solid-state electrolyte of the energy store is a material which is permeable for ions, but not for electrons
Data Source
AI summary
A circuit board having a power supply, an electrical device having a circuit board, and a method for producing a circuit board are disclosed. In an embodiment a circuit board includes a power supply, a carrier substrate and an energy store with a first layer stack having a first electrode layer with a first electrode, a second electrode layer with a second electrode, and an electrolyte layer arranged therebetween, which has an electrolyte, wherein the first electrode, the second electrode and the electrolyte are solid states.