All-Solid Battery Pressing With Heating for Pore Removal
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Solution Overview
Problem
Existing methods for manufacturing all-solid batteries fail to sufficiently remove pores and can damage the battery during the pressurizing process, leading to degraded performance.
Innovation Solution
An apparatus comprising a holder, a pressurizing unit, and a heating unit, with optional buffer auxiliary members and pressure control, to uniformly pressurize and heat the battery cells, ensuring pore removal and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pressurizing is applied to remove pores in all-solid battery, then pore removal is improved, but battery damage occurs during pressurizing process
Solution Approach 1:
The patent applies preliminary heating to the all-solid battery before pressurization. The heating unit raises the temperature of the battery to a predetermined level, which softens the solid electrolyte and active material particles, making them more compliant. This preliminary thermal treatment enables subsequent pressurization to remove pores more effectively without causing battery damage, as the materials are more ductile at elevated temperatures.
Solution Approach 2:
The patent changes the temperature parameter of the all-solid battery during the manufacturing process. By controlling the temperature through the heating unit, the physical state and mechanical properties of the battery materials are modified. This parameter change allows the battery to withstand pressurization better while still achieving pore removal, resolving the contradiction between pore removal effectiveness and battery integrity.
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 apparatus effectively removes pores and ensures uniform pressurization, preventing damage to the battery cells during the manufacturing process, thereby improving battery performance.
Implementation Method 1
a heating unit arranged in an area of the holder or the pressurizing unit and configured to apply heat to the workpiece
Implementation Method 2
a pressurizing unit arranged above the surface of the holder and configured to pressurize the workpiece seated on the holder to a preset pressure
Data Source
AI summary
An embodiment of the present disclosure provides an apparatus for manufacturing an all-solid battery, the apparatus including a holder having a surface on which a workpiece is seated, a pressurizing unit arranged above the surface of the holder and configured to pressurize the workpiece seated on the holder to a preset pressure, and a heating unit arranged in an area of the holder or the pressurizing unit and configured to apply heat to the workpiece.