Multi-Layer Ceramic Battery Terminal Plating for Moisture Resistance
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Solution Overview
Problem
Conventional laminated solid-state secondary batteries face issues with moisture penetration due to spaces between external electrodes and insulating coating layers, leading to deterioration and reduced moisture resistance.
Innovation Solution
The method involves forming conductive terminals and an insulating coating layer on the battery body, followed by plating the terminals to ensure firm adhesion, using materials like silanes, oxides, and glass to enhance moisture resistance and electrical reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If external electrodes are formed first and then insulating coating layer is formed, then the manufacturing process is simple, but spaces are created between external electrodes and insulating coating layer with aging, allowing moisture penetration
Solution Approach 1:
The conductive terminal is plated on the external electrode before forming the insulating coating layer. This preliminary plating action ensures that the terminal is already in place and securely attached, preventing future spaces from forming between the electrode and coating layer, thus maintaining moisture resistance without complicating the overall process
Solution Approach 2:
The invention changes the sequence of operations by performing plating before coating formation. This parameter change in the manufacturing process sequence resolves the contradiction by ensuring proper adhesion and eliminating spaces that would otherwise form during aging, while still maintaining a relatively simple two-step process
2Reliability
If conductive terminal is plated before forming insulating coating layer, then firm adhesion is achieved and moisture resistance is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The plating and coating formation processes are merged into a sequential workflow where plating is performed first, then the insulating coating is applied. This combination of steps in a specific sequence achieves firm adhesion and moisture resistance while keeping the overall process manageable and not excessively complex
3Ease of manufacture
If spaces are created between external electrodes and insulating coating layer, then manufacturing is easier, but moisture and foreign substances can penetrate into battery body
Solution Approach 1:
By plating the conductive terminal before forming the insulating coating layer, the terminal is securely anchored in advance. This preliminary action prevents spaces from forming later, thereby blocking the pathway for moisture and foreign substance penetration while maintaining manufacturing ease
Solution Approach 2:
The plating process creates a firm bond between the external electrode and the subsequent insulating coating layer, acting in advance to prevent the formation of spaces. This preliminary anti-action counteracts the potential harmful effect of moisture penetration before it can occur during aging
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 approach improves moisture resistance and electrical reliability by preventing moisture and foreign substances from entering the battery, enhancing the product's performance.
Implementation Method 1
forming a pair of inner plating layers to connect to the surfaces of the conductive terminal layers exposed through the insulating coating windows
Data Source
AI summary
Provided are a multi-layer ceramic battery and a method thereof. The method includes: forming a pair of conductive terminal layers to partly cover one side and the other side of a battery body; forming an outer insulating coating layer to cover the surface of the battery body and each surface of the pair of conductive terminal layers; forming a pair of insulating coating windows by polishing the outer insulating coating layer to expose the surfaces of the conductive terminal layers formed at the ends of the one side and the other side of the battery body; forming a pair of inner plating layers to connect to the surfaces of the conductive terminal layers exposed through the insulating coating windows and partly cover one side and the other side of the outer insulating coating layer; and forming a pair of outer plating layers to cover the inner plating layers.