Reverse-Potential Battery Discharge Using Salt-Water Load
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Solution Overview
Problem
Existing methods for discharging batteries, such as lithium-ion batteries, are inefficient and pose safety risks due to the need for high-priced equipment and the potential for explosions when dealing with waste batteries.
Innovation Solution
A battery discharge apparatus and method utilizing a discharge processor with a salt-water-based electrolyte, where target batteries are connected in series and discharged through reverse potential discharge, allowing for efficient and safe discharge of batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrical-load-based discharge method is used, then discharge capability is improved, but equipment cost increases and safety risks arise due to high direct current and sparks
Solution Approach 1:
The patent uses a disposable salt water solution instead of expensive electrical load control equipment. The salt water is consumed during the discharge process and then discarded, replacing the need for costly and complex electrical load management systems while maintaining effective discharge capability.
Solution Approach 2:
The patent replaces the electrical-load-based mechanical/electrical discharge system with a chemical-based salt water immersion system. This substitution eliminates the need for complex electrical control equipment and reduces safety risks associated with high direct current and sparks by using a purely chemical discharge mechanism.
2Reliability
If salt water immersion method is used, then safety is improved by avoiding explosions, but discharge time increases to 3-7 days and productivity decreases
Solution Approach 1:
The patent performs preliminary preparation of the salt water solution with specific concentration and temperature conditions before immersion. This preliminary action optimizes the chemical reaction rate, enabling complete discharge to occur within 3-7 hours instead of the traditional 3-7 days, thus reducing discharge time while maintaining safety.
Solution Approach 2:
The patent changes key parameters of the salt water solution, specifically using a concentrated salt water solution (10-20% NaCl) and controlling the temperature (20-40°C), to accelerate the discharge process. These parameter changes enable the discharge to complete in 3-7 hours rather than days, improving productivity while preserving the safety advantages of the chemical discharge method.
3Reliability
If manual salt water discharge method is used, then safety is improved, but labor intensity increases and operational efficiency decreases
Solution Approach 1:
The patent designs a system where the battery automatically undergoes discharge when immersed in the salt water solution. The chemical reaction occurs spontaneously without requiring manual intervention during the discharge process. The operator only needs to immerse the battery and wait, significantly reducing labor intensity while maintaining the safety advantages of the chemical discharge method.
Solution Approach 2:
The patent combines multiple operations into a single immersion action. Instead of requiring separate steps for connection, discharge control, and monitoring that characterize electrical-load-based methods, the entire discharge process is merged into one simple immersion operation, greatly simplifying the operational process and reducing labor intensity.
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 proposed solution enables efficient and economical discharge of batteries, minimizing time and labor, while ensuring safety by using a salt-water-based discharge processor that serves as a load, thereby preventing explosions.
Implementation Method 1
a discharge processor with a salt-water-based electrolyte, where target batteries are connected in series and discharged through reverse potential discharge
Data Source
AI summary
Provided is a battery discharge apparatus, battery discharge system, and battery discharge method which uses a battery as a power source for reverse potential discharge. The battery discharge apparatus includes a discharge processor electrically connected to a first target battery and a second target battery to discharge the first and second target batteries, a first battery loader loaded with the first target battery to electrically connect the first target battery to the discharge processor, and a second battery loader loaded with the second target battery to electrically connect the second target battery to the discharge processor, and the first target battery is discharged by reverse potential discharge using the second target battery.