Electrolyte Removal Apparatus for Battery Injection Instruments
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Solution Overview
Problem
Conventional electrolyte removal processes in secondary battery manufacturing are inefficient, leading to residual electrolyte crystallization and clogging, which affects battery performance and requires time-consuming manual cleaning.
Innovation Solution
An electrolyte removal device comprising an electrolyte suction part, O-ring washing part, and hot-air drying part to effectively remove residual electrolyte from injection instruments, maintaining appropriate electrolyte levels for high-quality battery production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultrasonic cleaning is performed manually after electrolyte injection, then residual electrolyte can be removed, but the process takes a lot of time and increases costs
Solution Approach 1:
The injection instrument is designed to remove its own residual electrolyte automatically through integrated suction ports and washing channels, eliminating the need for manual ultrasonic cleaning. The instrument self-detects and self-cleans residual electrolyte from its internal passages and O-rings.
Solution Approach 2:
A washing liquid is introduced as an intermediary substance to dissolve and flush out residual electrolyte from the injection instrument's internal passages. The washing liquid flows through dedicated washing channels to carry away contaminants without requiring manual disassembly or ultrasonic treatment.
2Productivity
If residual electrolyte remains in the injection tube, then the injection process can continue without interruption, but the electrolyte crystallizes and clogs the injection port affecting battery performance
Solution Approach 1:
The suction ports are positioned to remove residual electrolyte immediately after injection completes, before the electrolyte has a chance to crystallize. The washing liquid is also introduced in advance to prevent crystallization by maintaining a wet environment in the passages.
Solution Approach 2:
The electrolyte removal process is integrated into the injection cycle itself, with suction and washing operations continuing seamlessly after injection. This continuous action ensures residual electrolyte is removed without interruption, preventing crystallization and maintaining port functionality for the next injection cycle.
3Ease of manufacture
If manual cleaning is performed regularly at intervals, then some residual electrolyte is removed, but continuous maintenance cannot be achieved leading to clogging
Solution Approach 1:
The injection instrument automatically removes its own residual electrolyte through integrated suction ports and washing channels, eliminating the need for periodic manual cleaning interventions. This self-maintenance capability ensures continuous reliability without operator involvement.
Solution Approach 2:
The system includes sensors that detect residual electrolyte levels in the injection instrument and automatically trigger suction and washing operations when thresholds are exceeded. This feedback mechanism ensures maintenance is performed continuously based on actual conditions rather than fixed intervals.
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 device ensures efficient removal of residual electrolyte, maintaining consistent electrolyte amounts in battery cells, thereby enhancing battery performance and reducing maintenance time and costs.
Implementation Method 1
a suction part (110) to suck the electrolyte remaining in the liquid injection instrument (10)
Implementation Method 2
a hot-air drying part (140) to spray hot air to at least one of inside and outside of the liquid injection instrument (10)
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
An electrolyte removal device of the present invention is a removal device for removing an electrolyte remaining in a liquid injection instrument for injecting an electrolyte to a battery cell, which comprises a transfer part arranged to transfer the liquid injection instrument, an electrolyte suction part arranged to remove the electrolyte remaining in the liquid injection instrument by suction, an upper O-ring washing part washing an upper O-ring of the liquid injection instrument; a lower O-ring washing part washing a lower O-ring of the liquid injection instrument, and a hot-air drying part spraying hot air to the inside and the outside of the liquid injection instrument to remove a liquid remaining in the liquid injection instrument.