Adaptive Battery Formation Pressing for Uniform Layer Adhesion
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Solution Overview
Problem
Conventional methods for producing layered battery cells often result in layers that are insufficiently adhered, leading to performance issues such as swelling and decreased longevity.
Innovation Solution
A battery formation system that includes a press assembly with rotatable pressing platforms, pressure film sensors, and a computer system to adjust the pressing force and angle based on real-time pressure data, ensuring even layer adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pressing methods are used to form layered battery cells, then the manufacturing process is simple, but the layers are insufficiently adhered leading to performance issues
Solution Approach 1:
The pressing system is divided into multiple independent pressing units, each equipped with its own pressure sensor and control system. This allows individualized pressing force application to different regions of the battery cell, ensuring uniform layer adhesion across the entire cell while maintaining manageable system complexity through modular design
Solution Approach 2:
Pressure sensors provide real-time feedback on the pressing force applied to each region of the battery cell. The control system uses this feedback to dynamically adjust the pressing force, ensuring optimal adhesion for each layer while compensating for variations in cell geometry and material properties
2Manufacturing precision
If uniform pressing force is applied to all battery cells, then the manufacturing process is efficient, but individual cell variations lead to non-uniform layer adhesion
Solution Approach 1:
Each pressing unit can independently adjust its pressing force based on local cell characteristics detected by pressure sensors. This allows the system to apply different pressing forces to different regions of the battery cell stack, ensuring uniform pressure distribution across all cells while maintaining high productivity through automated control
Solution Approach 2:
The pressing system transitions from static, uniform pressing to dynamic, adaptive pressing. The control system continuously monitors pressure feedback and adjusts pressing forces in real-time, allowing the system to respond to individual cell variations while maintaining overall process efficiency through automated regulation
3Manufacturing precision
If manual adjustment of pressing parameters is used, then the system is easy to operate, but the pressure and temperature profiles are non-uniform across battery cells
Solution Approach 1:
Temperature sensors provide real-time feedback on the temperature distribution across the battery cell during formation. The control system uses this feedback to dynamically adjust heating parameters, ensuring uniform temperature profiles while automating the process to maintain ease of operation
Solution Approach 2:
The system automatically adjusts pressing and heating parameters based on sensor feedback, transitioning from manual parameter setting to automated parameter optimization. This ensures uniform temperature and pressure profiles while the user interface maintains simplicity through automated 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 system achieves improved layer adhesion and performance by ensuring uniform pressure and temperature profiles across each battery cell, leading to enhanced reliability and longevity.
Implementation Method 1
a heating plate coupled to the first pressing platform, wherein the heating plate may be configured to provide heat to the unfinished battery at a temperature
Implementation Method 2
a press assembly configured to move the first pressing platform towards the second pressing platform to apply a pressing force on an unfinished battery
Data Source
AI summary
A battery formation system, comprising a first pressing platform, a second pressing platform, and a press assembly configured to move the first pressing platform towards the second pressing platform to apply a pressing force on an unfinished battery. The first pressing platform is coupled to the press assembly and rotatable relative to the second pressing platform. The battery formation system further comprises a pressure film sensor coupled to the pressing platform and configured to output pressure data corresponding to the pressing force, and a computer system in communication with the pressure film sensor. The computer system includes one or more computer processors configured to receive the pressure data from the pressure film sensor, determine, based on the pressure data, pressure information that is representative of the first pressing platform, and send instructions to adjust an angle of the first pressing platform based on the pressure information.