Battery Cover Body Assembly Distribution Channel Design
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Solution Overview
Problem
During the electrolyte injection process in batteries, a significant amount of electrolyte often remains in the cover body assembly rather than reaching the jelly-roll, leading to waste and inefficiency.
Innovation Solution
A cover body assembly design featuring a lower insulation plate connected to the cover body with a distribution channel that communicates with the liquid injection channel and inner cavity, allowing electrolyte to flow directly into the housing and preventing accumulation in the cover body assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If electrolyte is injected through the liquid injection channel, then the jelly-roll can be soaked with electrolyte, but electrolyte accumulates in the cover body assembly and cannot reach the jelly-roll completely
Solution Approach 1:
The cover body assembly is segmented into multiple functional regions: the liquid injection channel for electrolyte input, the distribution channel formed between the lower insulation plate and cover body for electrolyte redistribution, and the inner cavity for jelly-roll soaking. This segmentation directs electrolyte flow through distinct pathways, ensuring complete delivery to the jelly-roll while preventing accumulation in the cover body assembly.
Solution Approach 2:
The distribution channel acts as an intermediary between the liquid injection channel and the inner cavity. It receives electrolyte from the injection channel and redistributes it to ensure complete coverage of the jelly-roll, preventing electrolyte from stagnating in the cover body assembly while maintaining efficient delivery to the target component.
2Stability of the object's composition
If the lower insulation plate is connected closely to the cover body, then structural stability is improved, but electrolyte flow path is blocked and distribution is hindered
Solution Approach 1:
The lower insulation plate is positioned at a controlled interval from the cover body, creating a specific local space (distribution channel) with appropriate dimensions for electrolyte flow. This local quality adjustment maintains overall structural stability while ensuring sufficient space for effective electrolyte distribution between the plate and cover body surfaces.
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 ensures that the electrolyte effectively reaches the jelly-roll, reducing waste and enhancing the efficiency of the electrolyte distribution process, thereby improving battery performance.
Implementation Method 1
the lower insulation plate and the cover body are disposed at an interval from each other, so that a distribution channel is formed between the lower insulation plate and the cover body, the distribution channel being communicated to the liquid injection channel and the inner cavity of the housing
Data Source
AI summary
The present disclosure discloses a cover body assembly of a battery and a battery. The battery includes a housing provided with an opening; a cover body assembly used for closing the opening; and a jelly-roll arranged inside an inner cavity of the housing; a liquid injection channel is arranged on the cover body assembly; electrolyte is injected into the inner cavity of the housing through the liquid injection channel, thus soaking the jelly-roll; the cover body assembly includes a cover body; and a lower insulation plate which is connected to a bottom surface of the cover body and is disposed at an interval, thus forming a distribution channel between the lower insulation plate and the cover body; and the distribution channel is communicated to the liquid injection channel and the inner cavity of the housing.