Battery Cell Insulating Structure for Dual Electrode Electrolyte Flow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing battery technologies face challenges in improving the processing and production efficiency of battery cells, particularly in ensuring uniform and rapid infiltration of electrolyte into electrode assemblies, which affects the machining efficiency and electrochemical performance.
Innovation Solution
A battery cell design featuring a hollow insulating structure with strategically placed through holes between electrode assemblies allows for efficient electrolyte infiltration, where the electrolyte flows through the insulating structure to both electrode assemblies, improving infiltration efficiency and effect, and includes a flow guide to redistribute the electrolyte for optimal infiltration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrolyte is injected directly into the battery cell without an insulating structure, then the injection process is simple, but the electrolyte infiltration is uneven and inefficient
Solution Approach 1:
A hollow insulating structure is introduced as an intermediary component between the electrolyte injection system and the electrode assemblies. This insulating structure includes through holes that guide electrolyte flow, ensuring uniform infiltration into both electrode assemblies while maintaining electrical insulation. The insulating structure acts as a mediator that transforms the injection process from direct (inefficient) to controlled (efficient), resolving the contradiction between infiltration efficiency and structural complexity.
Solution Approach 2:
The insulating structure is segmented with multiple through holes distributed across its surfaces, allowing electrolyte to infiltrate both electrode assemblies simultaneously through separate pathways. This segmentation of the infiltration process enables parallel electrolyte distribution to multiple locations, significantly improving infiltration efficiency without requiring a overly complex injection system.
2Productivity
If electrolyte infiltration is accelerated to improve productivity, then the processing time is reduced, but the uniformity of infiltration may be compromised
Solution Approach 1:
The insulating structure is designed with non-uniform distribution of through holes, with different numbers and arrangements of holes on different surfaces. The first surface has a first number of through holes, while the second surface has a second number of through holes, optimized for the specific infiltration requirements of each electrode assembly. This local quality variation ensures uniform infiltration across both assemblies while maintaining high processing efficiency, resolving the contradiction between productivity and manufacturing precision.
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
This design enhances the infiltration efficiency and electrochemical performance of battery cells by ensuring uniform and rapid electrolyte distribution across both electrode assemblies, thereby improving machining efficiency and energy density.
Implementation Method 1
the third through hole is configured to introduce electrolyte injected through the liquid injection hole into an interior of the insulating structure so that the electrolyte in the interior of the insulating structure flows to the first electrode assembly through the first through hole and to the second electrode assembly through the second through hole
Data Source
AI summary
The present application provides a battery cell, a battery, an electrical device, and a method and device for manufacturing a battery cell. The battery cell comprises: a housing, a first wall of the housing being provided with a liquid injection hole; a first electrode assembly and a second electrode assembly; an insulating structure arranged between the two electrode assemblies and comprising a second wall and a third wall; a first surface of the insulating structure facing the first wall is provided with a third through hole, the third through hole being used for guiding into the insulating structure an electrolyte injected through the liquid injection hole, so that the electrolyte in the insulating structure flows through the first through hole towards the first electrode assembly and flows through the second through hole towards the second electrode assembly.