Vacuum Electrolyte Injection Nozzle Layout to Reduce Chamber Contamination
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Solution Overview
Problem
The existing carrier/chamber type electrolyte injection method for rechargeable batteries results in electrolyte contamination of the vacuum chamber and carrier, leading to inefficiencies and increased costs due to electrolyte leaks and the need for frequent cleaning, as well as insufficient electrolyte injection.
Innovation Solution
An electrolyte injection apparatus with a carrier and vacuum chamber configuration that includes injection nozzles protruding into the vacuum chamber, allowing controlled electrolyte injection while maintaining a low degree of vacuum, minimizing contamination and optimizing electrolyte distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the carrier/chamber type electrolyte injection method is used to increase production, then productivity is improved, but electrolyte contamination of the vacuum chamber and carrier occurs, causing manufacturing precision to deteriorate
Solution Approach 1:
The injection nozzle is divided into multiple independent nozzles (e.g., 3-5 nozzles) arranged in an array, each capable of injecting electrolyte into separate battery containers. This segmentation allows precise control of electrolyte distribution to each container while maintaining overall high productivity through parallel processing.
Solution Approach 2:
An injection hopper is introduced as an intermediary component that receives electrolyte from the injection nozzle and distributes it to the battery containers. The hopper acts as a mediator that prevents direct contact between the electrolyte injection system and the vacuum chamber, reducing contamination while ensuring complete electrolyte transfer to each container.
2Reliability
If high vacuum is maintained in the vacuum chamber for electrolyte injection, then injection reliability is improved, but contamination of the vacuum chamber and carrier increases, causing loss of substance to worsen
Solution Approach 1:
The injection hopper is pre-positioned on the carrier before entering the vacuum chamber. The hopper is designed to receive and hold the electrolyte, and its position and orientation are pre-adjusted to ensure proper alignment with the battery containers during injection, enabling reliable electrolyte transfer without requiring extreme vacuum conditions.
Solution Approach 2:
The injection hopper serves as an intermediary that facilitates electrolyte transfer from the injection nozzle to the battery containers. By using the hopper as an intermediate transfer medium, the system achieves reliable electrolyte injection at lower vacuum levels, preventing electrolyte salt formation and reducing contamination of the vacuum chamber and carrier.
3Manufacturing precision
If the injection nozzle is positioned inside the vacuum chamber for precise electrolyte delivery, then manufacturing precision is improved, but device complexity increases due to penetration requirements
Solution Approach 1:
The injection nozzle is positioned at the upper surface of the vacuum chamber rather than penetrating deep inside. The injection hopper extends downward from the upper surface into the vacuum chamber space, delivering electrolyte vertically to the battery containers. This dimensional approach simplifies the nozzle structure while maintaining precise electrolyte delivery capability.
Solution Approach 2:
The injection hopper acts as an intermediary structure that connects the injection nozzle at the upper surface to the battery containers inside the vacuum chamber. The hopper penetrates the carrier upper plate and extends into the vacuum chamber, serving as a bridge that simplifies the nozzle penetration requirements while ensuring precise electrolyte delivery to each container.
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
Reduces contamination and improves manufacturing efficiency by ensuring complete electrolyte injection with reduced costs for vacuum maintenance and consumables, enhancing the production process.
Implementation Method 1
a vacuum chamber in which the carrier is movably accommodated
Data Source
AI summary
An electrolyte injection apparatus includes: a carrier; a plurality of battery containers aligned and mounted on the carrier; a vacuum chamber in which the carrier is movably accommodated; and an injection nozzle fixed while penetrating an upper surface of the vacuum chamber and configured to discharge an electrolyte and to supply the electrolyte to the battery containers.