Battery Laminate Insulating Layer Placement to Prevent Cracking
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Solution Overview
Problem
The existing insulating layers integrally formed with electrodes are prone to damage from cracks or deformation during the electrode manufacturing process, especially when the electrode base has low strength.
Innovation Solution
A method of manufacturing a laminate for a battery that involves forming an insulating layer by applying a liquid composition onto a first electrode and then placing a second electrode on the formed insulating layer, with both steps being implemented in a conveyance series to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an insulating layer is integrally formed with an electrode, then the insulating layer is formed in one step, but the insulating layer is easily damaged by cracks or deformation when the electrode base has low strength
Solution Approach 1:
The insulating layer is formed on the first electrode before the second electrode is placed, providing preliminary protection to the insulating layer. This preliminary action prevents the insulating layer from being damaged during subsequent handling and electrode placement operations, resolving the contradiction by protecting the insulating layer early in the manufacturing process
Solution Approach 2:
The manufacturing process is divided into separate steps: first forming the insulating layer on the first electrode, then placing the second electrode. This segmentation allows the insulating layer to be formed and protected before being exposed to potential damage, resolving the contradiction between ease of manufacture and reliability
2Device complexity
If the electrode base has low strength, then the manufacturing process is simpler, but the insulating layer is easily damaged by deformation upon receiving impact
Solution Approach 1:
The insulating layer acts as a cushioning layer between the first and second electrodes. When the electrode base has low strength and receives impact, the insulating layer absorbs and distributes the stress, preventing direct transmission of impact forces that would cause deformation and damage. This beforehand cushioning resolves the contradiction by protecting the weak electrode base during manufacturing
3Productivity
If the insulating layer is formed early without protection, then the manufacturing process is faster, but the laminate is prone to breaking during electrode manufacturing
Solution Approach 1:
The insulating layer is formed on the first electrode as a preliminary step before second electrode placement. This preliminary formation provides immediate protection to the insulating layer, preventing laminate breaking during subsequent manufacturing operations while maintaining efficient production flow, thus resolving the contradiction between productivity and manufacturing precision
Data Source
AI summary
A method of manufacturing a laminate for a battery is provided that includes forming an insulating layer by applying a liquid composition onto a first electrode, and placing a second electrode on the first electrode formed with the insulating layer. The forming and the placing are implemented by a conveyance series.