Solid-State Electrolyte Membrane Coating for Simpler Battery Assembly
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Solution Overview
Problem
Existing methods for preparing solid-state electrolyte membranes are complex and costly, requiring multiple steps and high-cost laser treatments on current collectors.
Innovation Solution
A method involving proportionally mixing raw materials to form a slurry, coating it on a substrate, and subjecting it to laser treatment to create a solid-state electrolyte membrane directly on the substrate, simplifying the process and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If raw materials are processed on a non-substrate and then stripped to assemble the battery, then the solid-state electrolyte membrane can be prepared, but the operation becomes complex requiring two or more steps
Solution Approach 1:
The patent applies preliminary action by pre-coating the solid-state electrolyte precursor slurry onto a substrate (current collector or electrode) before battery assembly. This eliminates the need for subsequent stripping and reassembly steps, reducing process complexity from multiple steps to a single integrated coating operation that maintains membrane quality.
Solution Approach 2:
The patent merges the substrate and solid-state electrolyte membrane into a single integrated structure by coating the precursor slurry directly on the substrate. This combination eliminates separate processing steps for membrane preparation and assembly, simplifying the overall process while ensuring reliable electrical connection and structural integrity.
2Manufacturing precision
If a solid-state electrolyte product is coated on a current collector and subjected to laser treatment, then the solid-state electrolyte membrane structure is obtained, but the cost increases
Solution Approach 1:
The patent employs cheap short-living objects by using a disposable substrate (current collector or electrode) that is coated with the solid-state electrolyte precursor slurry. The substrate serves its function during the coating and sintering process, eliminating the need for expensive laser treatment equipment and complex processing, thereby reducing manufacturing costs while maintaining product quality.
Solution Approach 2:
The patent replaces the expensive laser treatment system with a simpler thermal sintering process. Instead of using high-cost laser equipment to process the solid-state electrolyte product, the method uses controlled heating to sinter the precursor slurry directly on the substrate, achieving the same structural quality at lower cost.
3Reliability
If multiple steps are used to apply raw materials in the battery, then the solid-state electrolyte membrane can be formed, but the operation becomes complex and inefficient
Solution Approach 1:
The patent applies preliminary action by pre-coating the solid-state electrolyte precursor slurry onto the substrate before battery assembly. This single preliminary coating operation replaces multiple subsequent steps for material application and processing, significantly improving productivity while ensuring the integrity of the solid-state electrolyte membrane through controlled sintering.
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 method simplifies the preparation process, reduces material costs, and ensures a tightly bonded, flat solid-state electrolyte membrane structure suitable for efficient battery assembly.
Implementation Method 1
subjecting the solid-state electrolyte precursor coating layer to a laser treatment to obtain the solid-state electrolyte membrane structure
Data Source
AI summary
A method for preparing a solid-state electrolyte membrane structure. The method includes: S1, proportionally mixing raw materials of a solid-state electrolyte to obtain a mixed powder; S2, mixing the mixed powder, a binder and a solvent together to obtain a solid-state electrolyte precursor slurry; S3, coating the solid-state electrolyte precursor slurry on a substrate to obtain a solid-state electrolyte precursor coating layer; and S4, subjecting the solid-state electrolyte precursor coating layer to a laser treatment to obtain the solid-state electrolyte membrane structure.