Static Redox Battery Layout Without Electrolyte Circulation
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Solution Overview
Problem
Existing redox flow batteries require complex device configurations for electrolyte circulation, leading to high installation costs, large space requirements, and poor maintainability, while offering advantages like fire safety and long lifespan.
Innovation Solution
A static redox battery design that includes a membrane with ion permeation, symmetrical positive and negative electrode modules, and bipolar plates, utilizing felt electrodes and perforated support plates to store electrolyte without circulation, allowing for increased energy capacity and flexible implementation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a redox flow battery uses external tanks and electrolyte circulation devices, then it achieves long lifespan and fire safety, but it requires high installation costs and large installation space
Solution Approach 1:
The patent merges the electrolyte storage function with the electrode structure by integrating felt electrodes that directly hold the electrolyte, eliminating the need for separate external tanks. This combination reduces installation space while maintaining the redox reactions necessary for long lifespan and fire safety.
Solution Approach 2:
The patent extracts and eliminates the electrolyte circulation system (pumps, pipes, valves) from the battery design. By using stationary felt electrodes that directly contain the electrolyte, the circulation devices are removed, reducing installation space and complexity while preserving the core redox functionality.
2Reliability
If a redox flow battery uses external tanks and electrolyte circulation devices, then it achieves long lifespan and fire safety, but it results in high installation costs
Solution Approach 1:
The patent merges the electrolyte storage function with the electrode structure by integrating felt electrodes that directly hold the electrolyte, eliminating the need for separate external tanks. This combination reduces installation space while maintaining the redox reactions necessary for long lifespan and fire safety.
Solution Approach 2:
The patent extracts and eliminates the electrolyte circulation system (pumps, pipes, valves) from the battery design. By using stationary felt electrodes that directly contain the electrolyte, the circulation devices are removed, reducing installation space and complexity.
3Reliability
If a redox flow battery uses external tanks and electrolyte circulation devices, then it achieves long lifespan and fire safety, but it has poor maintainability due to complex device configuration
Solution Approach 1:
The patent extracts and eliminates the electrolyte circulation system (pumps, pipes, valves) from the battery design. By using stationary felt electrodes that directly contain the electrolyte, the circulation devices are removed, reducing installation space and complexity.
Solution Approach 2:
The battery is divided into modular units with individual felt electrodes that can be independently accessed and replaced. This segmentation allows for easier maintenance and repair of specific components without affecting the entire system.
4Volume of stationary object
If a static redox battery uses felt electrodes to store electrolyte without circulation, then it reduces installation space and cost, but it requires increased energy capacity design
Solution Approach 1:
The patent uses felt electrodes with porous structures that can absorb and store large amounts of electrolyte within their matrix. This increases the energy capacity per unit volume, allowing the battery to maintain high energy density without requiring large installation space.
Solution Approach 2:
The felt electrodes are constructed as composites combining conductive materials with porous structures, enabling them to simultaneously store electrolyte, conduct electrons, and provide structural support. This composite design maximizes energy capacity within the reduced installation space.
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
Reduces installation costs and space, facilitates maintenance, and enables high energy capacity with flexible output options, suitable for energy storage systems in buildings and electric vehicle charging stations.
Implementation Method 1
a membrane having an ion permeation property
Implementation Method 2
Each of the positive electrode electrolyte storage cell module and the negative electrode electrolyte storage cell module may include a plurality of felt electrodes storing an electrolyte
Implementation Method 3
The redox flow battery is a flow battery that performs charging and discharging using oxidation and reduction reactions of an electrolyte
Implementation Method 4
The redox flow battery is a flow battery that performs charging and discharging using oxidation and reduction reactions of an electrolyte
Data Source
AI summary
A static redox battery includes: a membrane having an ion permeation property; a positive electrode electrolyte storage cell module positioned on one side of the membrane; a negative electrode electrolyte storage cell module positioned on the other side of the membrane; and a pair of bipolar plates positioned on outermost sides of the positive electrode electrolyte storage cell module and the negative electrode electrolyte storage cell module. Each of the positive electrode electrolyte storage cell module and the negative electrode electrolyte storage cell module includes a plurality of felt electrodes storing an electrolyte, and a plurality of perforated support plates positioned between the plurality of felt electrodes.