Application of Kitronyx's Pressure Distribution Measurement System for formation process
Purpose
The formation process, carried out after battery cell assembly, involves charging, discharging, and aging to electrically stabilize the cell. In pouch-type cells, applying uniform pressure during this stage is critical to prevent swelling and deformation.
In this case study, a customer who previously used pressure indicating film to assess pressure uniformity replaced it with Kitronyx’s PressureScan II system and validated its performance under real operating conditions.
By utilizing the pass/fail judgment capabilities of ForceLAB2, the customer compared PressureScan II results with those from pressure indicating film and confirmed their consistency. Multiple test iterations also verified the repeatability and reliability of the PressureScan II measurements.
Beyond verifying the replacement feasibility of pressure indicating film, Kitronyx established an optimized automatic pass/fail standard tailored to the customer’s equipment—demonstrating the integrated power of our FSR sensor, hardware, and software technologies.
Results
1. Transition to a Quantitative Inspection System Based on PressureScan II
The prior pressure-indicating film–based workflow relied on photographing pressure-indicating film and manually marking areas with comparatively lower applied pressure.
However, this approach had critical limitations:
•Subjective interpretation could lead to inconsistent results.
•Capturing, storing, and managing original data was cumbersome and error-prone.
To overcome these issues, we evaluated replacing pressure-indicating film with PressureScan II. In validation tests, PressureScan II applied pressure and recorded measurements simultaneously across three channels. The results matched those from pressure-indicating film, confirming that PressureScan II can fully replace the film-based method.
2. Reliability Verification of PressureScan II
Before automating pass/fail judgment, we conducted repeatability tests under these conditions:
1. Five consecutive measurements under identical settings using equipment with excellent pressure uniformity.
2. A %RSD (relative standard deviation) criterion set so that the maximum and minimum deviations remained within 1 percentage point.
PressureScan II met these requirements, demonstrating reliable, error-free results. This confirms that an automated, PressureScan II–based pass/fail system poses no reliability concerns.
3. Customized Integrated Solution for Automated Pass/Fail Judgment
To implement automated evaluation, we first collected “good” and “defective” sample data by running the customer’s equipment with PressureScan II in place.
Using this dataset, we established objective judgment criteria and, for each new measurement, compared the recorded pressure distribution against those criteria to perform consistent, reproducible pass/fail decisions.
Through this process, we proposed a tailored pass/fail algorithm that meets the customer’s specifications and built a quantitative inspection workflow capable of distinguishing good versus defective channels.
Because Kitronyx develops its own software, hardware, and FSR sensors in-house, we integrate deep process know-how into every project. From algorithm design to program customization, we offer a one-stop solution—delivering systematic, efficient deployment and support.
Expected Benefits and Applications
- Data-Driven Evaluation
Enables acquisition of quantitative data versus the prior pressure-indicating film method—thereby strengthening the objectivity and reliability of pass/fail decisions.
- Streamlined Inspection Process
Facilitates data storage and traceability, improving the overall reporting workflow.
※ The features and contents described in this document are subject to change without notice for performance improvement.
The images included are for illustrative purposes and may differ from actual results.
If you have any other inquiries, please leave a message through the URLs below, and we will respond promptly.
For product inquiries: https://www.kitronyx.com/contact
For technical support inquiries: https://www.kitronyx.com/support_request
Application of Kitronyx's Pressure Distribution Measurement System for formation process
Purpose
The formation process, carried out after battery cell assembly, involves charging, discharging, and aging to electrically stabilize the cell. In pouch-type cells, applying uniform pressure during this stage is critical to prevent swelling and deformation.
In this case study, a customer who previously used pressure indicating film to assess pressure uniformity replaced it with Kitronyx’s PressureScan II system and validated its performance under real operating conditions.
By utilizing the pass/fail judgment capabilities of ForceLAB2, the customer compared PressureScan II results with those from pressure indicating film and confirmed their consistency. Multiple test iterations also verified the repeatability and reliability of the PressureScan II measurements.
Beyond verifying the replacement feasibility of pressure indicating film, Kitronyx established an optimized automatic pass/fail standard tailored to the customer’s equipment—demonstrating the integrated power of our FSR sensor, hardware, and software technologies.
Results
1. Transition to a Quantitative Inspection System Based on PressureScan II
The prior pressure-indicating film–based workflow relied on photographing pressure-indicating film and manually marking areas with comparatively lower applied pressure.
However, this approach had critical limitations:
•Subjective interpretation could lead to inconsistent results.
•Capturing, storing, and managing original data was cumbersome and error-prone.
To overcome these issues, we evaluated replacing pressure-indicating film with PressureScan II. In validation tests, PressureScan II applied pressure and recorded measurements simultaneously across three channels. The results matched those from pressure-indicating film, confirming that PressureScan II can fully replace the film-based method.
2. Reliability Verification of PressureScan II
Before automating pass/fail judgment, we conducted repeatability tests under these conditions:
3. Customized Integrated Solution for Automated Pass/Fail Judgment
To implement automated evaluation, we first collected “good” and “defective” sample data by running the customer’s equipment with PressureScan II in place.
Using this dataset, we established objective judgment criteria and, for each new measurement, compared the recorded pressure distribution against those criteria to perform consistent, reproducible pass/fail decisions.
Through this process, we proposed a tailored pass/fail algorithm that meets the customer’s specifications and built a quantitative inspection workflow capable of distinguishing good versus defective channels.
Because Kitronyx develops its own software, hardware, and FSR sensors in-house, we integrate deep process know-how into every project. From algorithm design to program customization, we offer a one-stop solution—delivering systematic, efficient deployment and support.
Expected Benefits and Applications
Enables acquisition of quantitative data versus the prior pressure-indicating film method—thereby strengthening the objectivity and reliability of pass/fail decisions.
Facilitates data storage and traceability, improving the overall reporting workflow.
※ The features and contents described in this document are subject to change without notice for performance improvement.
The images included are for illustrative purposes and may differ from actual results.
If you have any other inquiries, please leave a message through the URLs below, and we will respond promptly.
For product inquiries: https://www.kitronyx.com/contact
For technical support inquiries: https://www.kitronyx.com/support_request