Battery Cell Pressurizing Tables With Real-Time Pressure Deviation Sensing
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Solution Overview
Problem
Existing battery cell pressurization technologies lack real-time pressure monitoring and deviation detection, leading to inefficiencies, increased costs, and reduced quality uniformity and defect rates in battery cell manufacturing.
Innovation Solution
A battery cell pressurizing device with distributed pressure-sensitive sensors on mounting tables to monitor pressure in real time, detect deviations between and within cells, and a control unit to stop abnormal pressure application, integrated with a pressurizing unit and output unit for rapid response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure sensitive paper or pressure measuring device is installed to measure pressing force before pressurization, then pressure measurement capability is improved, but process time and cost increase
Solution Approach 1:
The mounting table itself serves as the pressure measurement platform by integrating pressure-sensitive sensors directly into its structure. The table automatically detects and reports pressure deviations during the pressurization process without requiring separate measurement devices or preparatory installation steps, thereby eliminating the time-consuming setup and removal of external pressure measuring devices while maintaining accurate pressure measurement capability
Solution Approach 2:
The pressure measurement function is merged with the mounting table structure by integrating pressure-sensitive sensors directly into the table. This combination allows the mounting table to simultaneously perform both its primary function of holding battery cells and its secondary function of measuring pressure, eliminating the need for separate pressure measuring devices and reducing process time
2Measurement precision
If load cell is installed in pressurizing device to measure overall pressure, then pressure measurement is improved, but ability to detect pressure deviations between cells or within cell parts is worsened
Solution Approach 1:
The pressure measurement system is segmented into multiple distributed pressure-sensitive sensors positioned at different locations on the mounting table. Each sensor independently measures pressure at its specific location, enabling detection of pressure deviations between different battery cells and within different parts of the same cell. This segmentation transforms the single overall pressure measurement into multiple localized measurements, thereby improving manufacturing precision and pressure uniformity detection capability
Solution Approach 2:
Pressure measurement capability is distributed to specific locations on the mounting table through strategically positioned pressure-sensitive sensors. Each sensor provides localized pressure information for the area where a battery cell is placed, enabling detection of local pressure variations and ensuring uniform pressure distribution across all cells and within different parts of each cell
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
Real-time pressure monitoring and deviation detection reduce manufacturing time and costs, ensure quality uniformity, and lower defect rates by identifying and addressing abnormal pressure conditions.
Implementation Method 1
a plurality of pressure-sensitive sensors distributed on the plurality of mounting tables and configured to detect pressure applied to the battery cells mounted on each mounting table separately for each battery cell or to detect the pressure separately for different parts of each battery cell
Data Source
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AI summary
Disclosed is a battery cell pressurizing device, which includes a plurality of mounting tables respectively configured so that at least one battery cell is mounted thereon, the plurality of mounting tables being arranged side by side in one direction; a pressurizing unit configured to pressurize the battery cells mounted on the plurality of mounting tables by pressing the plurality of mounting tables in a direction in which the plurality of mounting tables come into close contact with each other; and a plurality of pressure-sensitive sensors distributed on the plurality of mounting tables and configured to detect pressure applied to the battery cells mounted on each mounting table separately for each battery cell or to detect the pressure separately for different parts of each battery cell.