Rechargeable Energy Storage Circuit for High-Temperature Power Supply
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Solution Overview
Problem
Conventional power supplies fail to provide reliable power in high temperature downhole environments, where traditional battery storage is degraded and loses functionality.
Innovation Solution
A power system comprising a rechargeable energy storage device operable in a temperature range of -40°C to 210°C, coupled with a circuit for supplying and charging power, and featuring subsystems for depassivation, simulation, monitoring, switching, and automatic voltage adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional battery storage is used in downhole environments, then the system is simple and economical, but the battery is degraded by high temperature and loses functionality
Solution Approach 1:
The patent changes the fundamental operating parameters of the energy storage system by transitioning from chemical battery storage to electrostatic capacitor storage. Capacitors operate reliably at high temperatures (up to 210°C) because they store energy electrostatically rather than chemically, eliminating temperature-dependent chemical degradation while maintaining functional reliability in downhole environments.
Solution Approach 2:
The patent replaces the chemical energy storage mechanism with an electrostatic energy storage mechanism. Instead of relying on chemical reactions that degrade at high temperatures, the system uses electrostatic field energy storage in capacitors, which are inherently more tolerant of high temperature environments and provide reliable power supply under extreme conditions.
2Reliability
If rechargeable energy storage is used to provide power in high temperature environments, then the power supply reliability is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated circuit modules that manage capacitor charging, discharging, and voltage regulation. By combining power management, voltage regulation, and energy storage control into unified integrated circuits, the system achieves high reliability in harsh environments while minimizing the increase in overall device complexity through functional integration.
Solution Approach 2:
The patent designs universal power management circuits that can handle multiple operations (charging, discharging, voltage regulation, temperature compensation) using a single integrated system. This multi-functionality approach reduces the number of separate components needed, thereby limiting complexity increase while maintaining reliable power supply across varying temperature conditions.
3Duration of action of moving object
If advanced circuit subsystems are added for depassivation, simulation, monitoring, switching, and voltage adjustment, then the power system functionality is maintained, but the device complexity increases
Solution Approach 1:
The patent incorporates preliminary depassivation circuits that prepare the capacitor for optimal operation before main power delivery begins. These circuits perform initial conditioning, voltage equalization, and activation sequences in advance, ensuring the energy storage system is fully ready for extended operational duration while keeping the additional circuitry integrated and manageable in complexity.
Solution Approach 2:
The patent implements feedback monitoring circuits that continuously track capacitor voltage, current, and temperature parameters. This feedback mechanism enables automatic voltage adjustment, switching control, and system protection, extending operational duration by optimizing power delivery in real-time while using integrated circuits that minimize complexity increases through smart control algorithms.
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 power system effectively supplies power in high temperature environments, maintaining functionality through rechargeable energy storage and advanced circuit subsystems, ensuring reliable operation for extended periods.
Implementation Method 1
a rechargeable energy storage that is operable in a temperature range of between about minus forty degrees Celsius and two hundred and ten degrees Celsius coupled to a circuit for at least one of supplying power from the energy storage and charging the energy storage
Data Source
AI summary
A power system adapted for supplying power in a high temperature environment is disclosed. The power system includes a rechargeable energy storage that is operable in a temperature range of between about seventy degrees Celsius and about two hundred and fifty degrees Celsius coupled to a circuit for at least one of supplying power from the energy storage and charging the energy storage; wherein the energy storage is configured to store between about one one hundredth (0.01) of a joule and about one hundred megajoules of energy, and to provide peak power of between about one one hundredth (0.01) of a watt and about one hundred megawatts, for at least two charge-discharge cycles. Methods of use and fabrication are provided. Embodiments of additional features of the power supply are included.