Cryogenic Battery Electrolyte Extraction for Loss-Free Disassembly
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Solution Overview
Problem
Existing methods for extracting electrolyte from batteries are prone to accidents and result in electrolyte loss due to impacts during the disassembly process.
Innovation Solution
An electrolyte extraction system utilizing a first transfer unit, loading unit, cutting unit, unloading unit, and second transfer unit, which operates in an ultra-low temperature environment using liquid nitrogen to stabilize the battery before cutting it into pieces for extraction in an electrolyte extraction tank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated disassembly method is used to extract electrolyte from battery, then extraction efficiency is improved, but impact accidents occur causing electrolyte loss
Solution Approach 1:
The battery is cooled to low temperature before disassembly operations are performed. This preliminary cooling action stabilizes the battery structure and prevents impact accidents during automated disassembly, thereby preventing electrolyte loss while maintaining extraction efficiency
Solution Approach 2:
The temperature parameter of the battery is changed to a low temperature state before disassembly. This parameter change stabilizes the battery and prevents accidents during automated handling, resolving the contradiction between extraction efficiency and electrolyte loss
2Reliability
If manual disassembly method is used to extract electrolyte from battery, then accident risk is reduced, but extraction time increases and efficiency decreases
Solution Approach 1:
The battery is cooled to low temperature before disassembly to stabilize it structurally. This preliminary action enables safe automated handling and disassembly, achieving both accident prevention and high extraction efficiency simultaneously
Solution Approach 2:
The manual mechanical disassembly process is replaced with an automated system that operates on a cooled, stabilized battery. This substitution maintains safety while dramatically improving extraction efficiency
3Ease of manufacture
If battery is cut at room temperature, then cutting process is simple, but impact causes electrolyte loss and accidents
Solution Approach 1:
The battery temperature is changed to a low temperature state before cutting. This parameter change stabilizes the battery structure, preventing impact accidents and electrolyte loss during the cutting process while maintaining operational simplicity
Solution Approach 2:
The cutting process is performed on a localized cooled region of the battery. The low temperature stabilizes the battery structure at the cutting zone, preventing accidents and electrolyte loss while keeping the overall process simple
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 prevents accidents and ensures stable electrolyte extraction without loss by cutting batteries at ultra-low temperatures, enabling rapid extraction for multiple batteries.
Implementation Method 1
a loading unit configured to accommodate the lower jig together with the battery in a freezing tank filled with liquid nitrogen
Implementation Method 2
a cutting unit configured to cut the battery inside the freezing tank
Implementation Method 3
an unloading unit configured to take out the lower jig together with the battery from the freezing tank and accommodate the lower jig together with the battery in an electrolyte extraction tank
Data Source
Figure 1~2a
Figure 2b~3
AI summary
The present invention relates to an electrolyte extraction system and method, and the objective of the present invention is to provide an electrolyte extraction system and method for stably extracting, without loss, an electrolyte from a battery by disassembling the battery.