Battery Cell Separator Plate With Through Holes for Electrolyte Drainage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery cell designs face issues with electrolyte accumulation in the separation member, which hinders full utilization and increases the risk of short circuits.
Innovation Solution
A battery cell design featuring a separation member with a separation plate containing through holes, allowing electrolyte to flow out and reducing accumulation, while maintaining tab integrity and connection stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the separation member is designed without through holes to maintain structural integrity, then the separation and insulation function is improved, but electrolyte accumulation occurs in the separation member
Solution Approach 1:
The separation plate is designed with through holes to create a porous structure that allows electrolyte to pass through and drain effectively. This resolves the contradiction by maintaining the separation function while enabling electrolyte flow, preventing accumulation and improving utilization efficiency.
Solution Approach 2:
The separation member is segmented into multiple functional zones: the separation plate with through holes for drainage, the side plate for structural support, and the channel for electrolyte flow guidance. This segmentation allows each component to perform its specific function optimally, balancing separation integrity with electrolyte management.
2Loss of energy
If the separation member is designed with through holes to enable electrolyte flow, then electrolyte utilization is improved, but the structural strength may be reduced
Solution Approach 1:
The through holes are strategically positioned in specific regions of the separation plate where they provide maximum drainage benefit while minimizing impact on overall structural strength. The side plate and channel structure provide localized reinforcement to compensate for the holes, maintaining structural integrity while enabling electrolyte flow.
Solution Approach 2:
The separation member uses a composite structure combining the separation plate with through holes, the side plate, and the channel system. This composite design allows the structure to simultaneously achieve electrolyte drainage functionality and maintain sufficient mechanical strength through the integrated components.
3Device complexity
If the tab is directly connected to the electrode lead-out member without a separation member, then the connection simplicity is improved, but the risk of short circuit under impact increases
Solution Approach 1:
The separation member acts as an intermediary component between the tab and the electrode lead-out member. It provides the necessary electrical connection while simultaneously offering mechanical protection and insulation, preventing direct contact that could lead to short circuits under impact conditions.
Solution Approach 2:
The separation member performs multiple functions simultaneously: it provides electrical connection between tab and lead-out member, offers mechanical protection against impact, ensures insulation to prevent short circuits, and enables electrolyte drainage through its porous structure. This multi-functionality resolves the contradiction by adding a component that delivers multiple benefits.
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 design reduces electrolyte accumulation and enhances electrolyte utilization, improving battery cell reliability and performance by minimizing short circuit risks.
Implementation Method 1
the through hole penetrates through the separation plate along a thickness direction of the separation plate. In this way, the electrolyte can flow out of the separation member through the through hole
Data Source
AI summary
A battery cell, a battery and an electric device. The battery cell comprises: a casing, which comprises a wall portion, the wall portion being provided with a first electrode lead-out member; an electrode component, which is accommodated in the casing, and comprises a body portion and a tab extending from the body portion; and a separator member, which is at least partially disposed between the first electrode lead-out member and the body portion, wherein the separator member comprises a separator plate, which is provided with a channel; the tab passes through the channel and is electrically connected to the first electrode lead-out member; the separator plate is provided with at least one through hole; and the through hole penetrates the separator plate in the direction of thickness of the separator plate.