Filling Head Cleaning Assembly for Electrolyte Crystal Prevention
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Solution Overview
Problem
Existing filling heads for electrochemical cells are prone to contamination and crystal formation during electrolyte filling, leading to potential leaks and quality impairment.
Innovation Solution
A cleaning arrangement with a first cleaning unit that sprays a cleaning medium onto the cell filling opening and lower chamber of the filling head, and a second cleaning unit that fills and vents the upper chamber with cleaning medium and purge gas, ensuring thorough cleaning without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a filling head is used to fill electrochemical cells with electrolyte, then filling speed and efficiency are improved, but contamination and crystal formation occur at various locations
Solution Approach 1:
The cleaning arrangement performs preliminary cleaning actions on the filling head before electrolyte filling occurs. The spray device applies cleaning medium to the cell filling opening and surrounding areas in advance, preventing contamination and crystal formation before they can occur during the filling process.
Solution Approach 2:
A cleaning medium is introduced as an intermediary substance between the filling head and the electrolyte. This cleaning medium flows through the filling head chambers and out through the cell filling opening, serving as a protective barrier that prevents electrolyte contamination and crystal formation while maintaining the filling process.
2Reliability
If the filling head is cleaned by removing it from the electrolyte filling assembly, then thorough cleaning is possible, but additional handling time and complexity increase
Solution Approach 1:
The filling head cleans itself while remaining in place during the electrolyte filling assembly. The cleaning medium is supplied through the filling head's own chambers and passages, allowing the filling head to be cleaned in situ without removal or disassembly, thereby maintaining cleaning effectiveness while reducing handling complexity.
Solution Approach 2:
The filling head serves multiple functions simultaneously: it performs electrolyte filling and undergoes cleaning operations without removal. The cleaning arrangement is integrated into the existing filling assembly, allowing the same filling head to be used for both filling and cleaning operations, reducing the need for separate handling procedures.
3Object-affected harmful factors
If cleaning medium is sprayed onto the cell filling opening, then contamination is prevented, but cleaning medium may escape and cause additional contamination
Solution Approach 1:
The cleaning medium flows continuously through the filling head chambers in a controlled manner, entering through the upper chamber, passing through the lower chamber, and exiting through the cell filling opening. This continuous flow ensures contamination prevention while the structured pathway prevents uncontrolled escape and additional contamination.
Solution Approach 2:
The cleaning arrangement uses hydraulic principles to control the flow of cleaning medium through the filling head chambers. The cleaning medium is supplied under controlled pressure through the upper chamber and lower chamber, ensuring it reaches the cell filling opening for contamination prevention while the hydraulic control prevents uncontrolled escape.
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
Effectively prevents contamination and crystal formation by cleaning the filling head components, allowing for reliable and efficient electrolyte filling without additional handling.
Implementation Method 1
a spraying device (36) for spraying the cell filling opening (22) with a cleaning medium
Implementation Method 2
a certain amount of cleaning medium can reach the lower chamber of the fill head, so that the area of the chamber above the cell filling opening can also be cleaned in this step
Implementation Method 3
Contaminated cleaning medium can be collected by the cleaning medium holder. This can prevent contamination of an electrolyte filling arrangement
Data Source
Figure 1
Figure 2a~3b
Figure 4a~5c
AI summary
The invention relates to a cleaning arrangement (30) for cleaning a filling head (10), which in particular has two chambers (12, 14) and is intended for filling electrochemical cells with an electrolyte, with a first, in particular lower, cleaning unit (32) which has a connection (34) for connection to the filling head (10) in the region of a cell filling opening (22) of the filling head (10) and a spraying device (36) for spraying the cell filling opening (22) with a cleaning medium, as well as a cleaning medium receptacle (44).