Cryogenic Battery Cutting for Stable Electrolyte Extraction
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Solution Overview
Problem
Existing methods for extracting electrolyte from batteries are prone to accidents due to impacts and result in electrolyte loss, necessitating a stable and automated process for disassembly and extraction.
Innovation Solution
An electrolyte extraction system involving a first transfer unit, loading unit, cutting unit, unloading unit, and second transfer unit, utilizing liquid nitrogen cooling and a blade unit to cut batteries into pieces in an ultra-low temperature environment, followed by immersion in an electrolyte extraction solvent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated disassembly method is used, then productivity is improved, but impact accidents occur causing electrolyte loss
Solution Approach 1:
The patent applies beforehand cushioning by introducing a damping member between the battery and the cutting blade. This damping member absorbs impact forces during the automated disassembly process, preventing accidental damage to the battery that would cause electrolyte loss, while still allowing the automated high-speed extraction process to continue
2Reliability
If manual disassembly method is used, then impact accidents are prevented, but productivity decreases and extraction is incomplete
Solution Approach 1:
The patent uses an intermediary approach by introducing a damping member as a mediator between the automated cutting system and the battery. This intermediary component enables the system to maintain automated high-speed operation while providing the impact absorption and protection that would otherwise require manual handling
3Speed
If cutting blade directly contacts battery, then cutting speed is high, but impact causes electrolyte leakage
Solution Approach 1:
The damping member is positioned in advance between the cutting blade and the battery, providing cushioning protection before the cutting action occurs. This allows the blade to maintain high cutting speed while the damping member absorbs any excessive impact forces that could cause electrolyte leakage
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 enables rapid and stable electrolyte extraction from multiple batteries without loss, preventing accidents by minimizing impact and ensuring complete extraction.
Implementation Method 1
a loading unit accommodating the lower jig together with the battery in a freezing tank filled with liquid nitrogen
Implementation Method 2
a cutting unit cutting the battery inside the freezing tank
Implementation Method 3
immersion in an electrolyte extraction solvent
Data Source
AI summary
An electrolyte extraction system and a method for extracting electrolyte from a battery using the same are provided. The electrolyte extraction system comprises a first transfer unit transferring a lower jig having an upper surface on which a battery is mounted; a loading unit accommodating the lower jig together with the battery in a freezing tank filled with liquid nitrogen; a cutting unit cutting the battery inside the freezing tank; an unloading unit taking out the lower jig together with the battery from the freezing tank and accommodating the same in an electrolyte extraction tank; and a second transfer unit transferring the electrolyte extraction tank in which the battery is accommodated.