Electrode Plate Conductive Coating to Cut Metal Plating Cost
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Solution Overview
Problem
Current electrode plate production methods are inefficient, difficult to operate, and costly due to the high costs of metal material used for metal coating, leading to high production costs and difficulties.
Innovation Solution
The electrode plate design incorporates a support layer with a conductive coating layer and an active material layer, where the conductive coating layer partially or completely replaces the metal plating layer, reducing metal material usage and incorporating metal tabs for power connection, with a conductive material composition of 45%-90% carbon-containing material and 10%-45% metal powder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fully plating metal coating layers on both sides of the support layer is used, then the electrode plate has good electrical conductivity and structural stability, but the production efficiency is low, operation is difficult, and production costs are high
Solution Approach 1:
The patent applies local quality by selectively plating metal coating layers only on specific areas of the support layer rather than fully plating both sides. The conductive coating layer is applied locally to regions where electrical conductivity is needed, while other areas remain unplated or use alternative conductive materials, thereby reducing overall metal consumption and production complexity while maintaining necessary electrical performance
Solution Approach 2:
The patent uses composite materials by combining the support layer with conductive coating layers that may include metal powders, conductive polymers, or carbon-based materials mixed with binders. This composite approach allows achieving adequate electrical conductivity without requiring thick or extensive metal plating, thus improving production efficiency and reducing costs while maintaining structural stability
2Reliability
If fully plating metal coating layers on both sides of the support layer is used, then the electrode plate has good electrical conductivity and structural stability, but the production difficulty is high
Solution Approach 1:
The patent simplifies manufacturing by applying conductive coating layers only to specific local areas of the support layer where electrical connectivity is required, rather than uniformly plating the entire surface. This localized approach reduces the complexity of the plating process, decreases processing time, and lowers production difficulty while still achieving the necessary electrical conductivity and structural stability in critical regions
3Reliability
If fully plating metal coating layers on both sides of the support layer is used, then the electrode plate has good electrical conductivity and structural stability, but the production costs are high
Solution Approach 1:
The patent reduces production costs by applying metal coating layers only to specific local areas of the support layer where electrical conductivity is needed, rather than fully plating both sides. This selective plating approach significantly reduces metal material consumption, lowers material costs, and decreases processing costs while maintaining adequate electrical conductivity and structural stability in the plated regions
Solution Approach 2:
The patent employs composite conductive materials that combine metal powders with binders or use conductive polymers and carbon-based materials as alternatives or supplements to pure metal plating. This composite material strategy reduces dependence on expensive metal materials, lowers material costs, and maintains sufficient electrical conductivity and structural performance, thereby reducing overall production costs
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 production efficiency, reduces production difficulty, and lowers costs by minimizing metal material usage and simplifying the coating process, resulting in a more efficient and cost-effective electrode plate production.
Implementation Method 1
at least part of the area on the surface of at least one side of the support layer is coated with the conductive coating layer
Implementation Method 2
the conductive coating layer comprises a conductive material and an adhesive
Data Source
AI summary
The present disclosure relates to the technical field of batteries, and discloses an electrode plate, a cell and a lithium battery. The electrode plate comprises a support layer, a conductive coating layer and an active material layer, wherein at least part of the area of the surface of at least one side of the support layer is coated with the conductive coating layer, and at least part of the area of the surface of a side of the conductive coating layer away from the support layer is covered with the active material layer. The electrode plate provided by the present disclosure has a high production efficiency, a low production difficulty and low production costs.