Electrode Layer Manufacturing With X-Ray Feedback Uniformity Control
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Solution Overview
Problem
Existing methods for manufacturing electrode layers in semi-solid state batteries face challenges in achieving uniformity in the thickness and density of the electrode material film due to variations in film forming conditions and pallet spacing, leading to inconsistencies at the film's ends.
Innovation Solution
A manufacturing method involving the formation of an electrode material film on a collector foil using a transport member with connected pallets, followed by spacing the pallets to divide the laminate, and measuring the film's density and thickness using an X-ray examination device to provide feedback for controlling film forming and spacing conditions, ensuring uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the electrode material film is formed on a collector foil using a transport member with connected pallets, then the electrode layer can be manufactured efficiently, but the thickness and density of the electrode material film become non-uniform due to film forming variations and pallet spacing changes
Solution Approach 1:
The patent introduces an X-ray examination device to measure the thickness and density of the electrode material film, and uses this measurement information as feedback to control the film forming conditions and pallet spacing. This closed-loop feedback system enables real-time adjustment to maintain manufacturing precision while preserving high productivity.
2Ease of operation
If the pallets are spaced to divide the laminate for each pallet, then the electrode layer can be formed on individual pallets, but changes in thickness or density occur at the end parts of the electrode material film
Solution Approach 1:
The X-ray examination device measures the thickness and density at all positions including end parts, and the measurement information is used to feedback-control the pallet spacing conditions. This enables compensation for edge effects and maintains uniformity even when pallets are spaced for individual handling.
3Measurement precision
If the X-ray examination device measures density and thickness of the electrode material film, then the in-plane uniformity can be grasped, but the measurement information must be effectively utilized to control film forming and spacing conditions
Solution Approach 1:
The patent establishes a feedback control system where measurement information from the X-ray examination device is directly used to control film forming conditions and pallet spacing. This integrates measurement and control functions to manage system complexity while achieving precise uniformity control.
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
The method enables the production of electrode layers with enhanced in-plane uniformity of density and thickness, reducing variations and improving the quality of the electrode material film.
Implementation Method 1
measuring a density and a thickness of the electrode material film using an X-ray examination device
Data Source
AI summary
Provided is a manufacturing method of an electrode layer, including a step A of forming an electrode material film on a collector foil, where the collector foil is transported using a transport member in which a plurality of pallets are connected in one direction, along a connection direction of the pallets, a step B of spacing the connected pallets apart from each other to divide a laminate of the collector foil and the electrode material film for each one pallet, and a step C of transporting the pallet on which the divided laminate of the collector foil and the electrode material film is placed along the connection direction of the pallets, and measuring a density and a thickness of the electrode material film using an X-ray examination device.