Immersed Nozzle Active Material Separation for Battery Members
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Solution Overview
Problem
Existing active material separation devices suffer from energy loss due to high pressure liquid collisions with the liquid surface, limited separation range, and potential deformation of battery members due to direct jet stream impact.
Innovation Solution
The device immerses the liquid injection nozzle below the liquid surface, generating a bubble cloud around the jet stream to efficiently separate active materials over a wide area without excessive stress on the battery member, using a movable and tilt-adjustable support system to optimize exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If high pressure liquid is injected from above the liquid surface toward the battery member, then the active material can be separated from the battery member, but the liquid collides with the liquid surface causing energy loss and attenuation of injection pressure
Solution Approach 1:
The injection nozzle is positioned below the liquid surface instead of above it, inverting the conventional injection direction. The high pressure liquid is injected upward from beneath the liquid surface directly toward the battery member, eliminating the energy-wasting collision with the liquid surface while maintaining effective separation pressure on the active material.
2Area of stationary object
If the jet stream of liquid is used to separate active material, then separation can be achieved, but the separation range is limited to the area directly hit by the jet stream
Solution Approach 1:
The injection nozzle is divided into multiple nozzle units arranged in an array, with each nozzle targeting a specific region of the battery member. This segmentation allows simultaneous separation of active material from multiple areas, expanding the overall separation range and eliminating the need for frequent repositioning of a single nozzle.
3Area of stationary object
If injection pressure is increased to expand separation range, then more area can be covered, but the substrate of the battery member deforms
Solution Approach 1:
Different nozzle units are assigned to different regions of the battery member, with each nozzle optimized for its local area. This allows moderate pressure to be applied uniformly across multiple localized zones rather than high pressure on a single area, achieving comprehensive separation without substrate deformation.
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
Efficient separation of active materials is achieved over a wide range with reduced energy loss and minimal substrate deformation, enhancing recovery efficiency and reducing stress on battery members.
Implementation Method 1
generating a bubble cloud around the jet stream to efficiently separate active materials
Data Source
AI summary
An active material separation device includes a container, a battery support part, and an injection nozzle. A liquid is stored in the container. The battery support part supports a battery member disposed in the container. The injection nozzle injects a high pressure liquid with respect to an active material separation surface of the battery member immersed in a liquid in the container. The injection nozzle is disposed at a position where a liquid injection part configured to inject a high pressure liquid is immersed in the liquid in the container.