Metal-Air Battery Electrolyte Circulation for Level and Flow Control
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Solution Overview
Problem
Current energy storage technologies, particularly electrochemical systems with iron-based negative electrodes, face challenges in enhancing performance, reliability, and cost-effectiveness for long-duration energy storage applications.
Innovation Solution
The development of a system for electrochemical power storage that includes a metal-air battery storage system with an electrolyte management system. This system features a battery module with a battery enclosure, a reservoir for liquid electrolyte, a supply conduit, a pump, and a return conduit, along with a controller and sensors for managing electrolyte levels and flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If iron-based negative electrodes are used in electrochemical energy storage systems, then cost is reduced and availability is improved, but system performance and reliability need enhancement
Solution Approach 1:
The patent modifies the electrolyte composition parameters by adding specific additives to the aqueous electrolyte system used with iron-based electrodes. This changes the chemical properties of the electrolyte to improve system reliability and performance while maintaining the cost advantage of using iron-based materials.
Solution Approach 2:
The patent introduces an electrolyte management system with reservoirs, pumps, and flow control mechanisms as intermediaries between the iron-based electrodes and the electrolyte. This intermediary system optimizes electrolyte distribution and management, enhancing overall system reliability and performance.
2Device complexity
If electrolyte levels are not properly managed in metal-air battery storage systems, then device complexity is reduced, but performance and longevity deteriorate
Solution Approach 1:
The patent implements a feedback control system where sensors monitor electrolyte levels and flow conditions, and the controller adjusts pump operation and flow valve positioning accordingly. This feedback mechanism ensures optimal electrolyte management, extending battery longevity while maintaining manageable device complexity through automated control.
Solution Approach 2:
The electrolyte management system is designed to automatically regulate electrolyte levels and flow distribution without manual intervention. The system self-adjusts through automated pump control and flow regulation, maintaining optimal conditions for extended battery operation while minimizing operational complexity.
3Ease of operation
If electrolyte flow is not optimized in battery modules, then ease of operation is improved, but energy storage performance deteriorates
Solution Approach 1:
The patent employs dynamic flow control mechanisms where the position of flow valves and pump operation are continuously adjusted based on real-time electrolyte level sensors and flow conditions. This dynamic adaptation optimizes electrolyte distribution across battery modules, enhancing energy storage performance while maintaining ease of operation through automated control.
Solution Approach 2:
The patent divides the electrolyte management system into separate controllable zones with individual flow valves and pumps for different battery modules. This segmentation allows independent optimization of electrolyte flow to each module, improving overall energy storage performance while maintaining simple operational control through modular management.
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 system effectively maintains optimal electrolyte levels within the battery module, enhancing the performance and longevity of metal-air battery storage systems while reducing costs and improving reliability for long-duration energy storage applications.
Implementation Method 1
a pump actuatable to move the liquid electrolyte from the reservoir into the battery enclosure via the supply conduit
Implementation Method 2
the return conduit may be angled between the battery enclosure and the reservoir such that gravity forces the liquid electrolyte through the return conduit to the reservoir
Data Source
AI summary
According to one aspect, a system for electrochemical power storage may include at least one instance of a battery module, each instance of the battery module including a battery enclosure and a metal-air battery, the metal-air battery disposed in the battery enclosure; a reservoir including a volume of a liquid electrolyte; a supply conduit in fluid communication between the reservoir and the battery enclosure; a pump actuatable to move the liquid electrolyte from the reservoir into the battery enclosure via the supply conduit; and a return conduit in fluid communication between the battery enclosure and the reservoir, the liquid electrolyte movable from the battery enclosure to the reservoir, via the return conduit, with the metal-air battery immersed in the liquid electrolyte in the battery enclosure.