IEST Battery Pressure Distribution Measurement System (BPD1000)

Introduction: BPD is used to quantitatively characterize the difference in stress distribution at different positions on the surface of the battery cell, and rapidly and quantitatively evaluate the surface flatness of the battery cell;

Features:

  1. Capable of displaying real-time total force curves from all sensors versus time.
  2. Select the pressure distribution diagram according to the user’s actual used area.
  3. Synchronize the charging and discharging datain real time;
  4. One-click to export the data report;
  5. Real-time calibration of pressure (combinedwith in-situ expansion equipment).

Application:

• Integrated with expansion fixtures, force distribution analysis during cell cycling
• Pressure uniformity validation in hot press lamination processes
• Module-level cell swelling force profiling

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Description

1. Structural Composition of Pressure Distribution Measurement System

IEST Battery Pressure Distribution Sensor Measure System Details-2

2. Features:

  • Capable of displaying real-time total force curves from all sensors versus time.
  • Select the pressure distribution diagram according to the user’s actual used area.
  • Synchronize the charging and discharging datain real time;
  • One-click to export the data report;
  • Real-time calibration of pressure (combinedwith in-situ expansion equipment).

3. Software interface:

IEST Battery Pressure Distribution Sensor Measure System Details-3

4. Application

• Integrated with expansion fixtures, force distribution analysis during cell cycling
• Pressure uniformity validation in hot press lamination processes
• Module-level cell swelling force profiling

Applications

Applications

  • With the expansion force test fixture or in-situ expansion test equipment, the stress distribution at different positions on the surface of the cell during the cycling process is characterized.
  • Quickly and quantitatively evaluate the surface flatnessof the cell.

Case 1. Test of stress distribution on the surface of the cell during the cycle

IEST Battery Pressure Distribution Sensor Measure System Details-4

  • Test information: NCM-Graphite system,3~4.3V, 0.5C, 50kg preload;
  • Result analysis: It can quantitatively characterize the difference of stress distribution on the surface of the cell, provide a deeper perspective for the stress analysis of the cell, and help technicians analyze the stress distribution in the cell, explore the causes of failure of the cell and develop a safer and more reliable cell.

Case 2. Surface flatness test of fresh cell

IEST Battery Pressure Distribution Sensor Measure System Details-5

  • Result analysis: there is a certain correlation between the cell process design and the cell pressure distribution(flatness). Technicians can develop appropriate distribution standards through the pressure distribution system to monitor the batch stability of the delivered cells.

Specifications

ModelBPD1000BPD1100-MBPD1100-L
PhotoIEST Battery Pressure Distribution Measurement System (BPD1000)IEST Battery Pressure Distribution Measurement System (BPD1000)IEST Battery Pressure Distribution Measurement System (BPD1000)
Range (MPa)0-5MPa
(Other ranges can be customized)
0-2MPa, 0-3MPa, 0-5MPa
(Other ranges can be customized)
0-2MPa, 0-3MPa, 0-5MPa
(Other ranges can be customized)
Points Supported• Individual sensing element size: 5 mm × 5 mm

• Total point count is calculated based on required measurement area)
• Supports up to 2288 points

• Requires calculation based on measurement area

• Supports up to 248 points/cm²
• Supports up to 9152 points

• Requires calculation based on measurement area.

• Supports up to 248 points/cm²
Accuracy12%3%~10%3%~10%
Thickness≤0.35mm≤0.35mm≤0.35mm
Collection Equipment• Scanning Frequency: 1 Hz

• Device Weight: < 5 kg

• Data Transmission: USB 2.0
• Data Transmission: USB 2.0

• Device Interface: Quick-locking Aviation Connector

• System Power: 2.5 W (5V, 0.5A)

• Scanning Frequency: Max 100 Hz

• Pressure Resolution: 256 levels (8-bit)

• Device Weight: < 1 kg
Software• 2D Mode Only• Pressure Grid Array: 2D/3D Topographic Color Mapping, Contact Area Pressure Distribution.

• Real-time Pressure Distribution Analytics with Auto-Recording/Storage. Software replays recorded files for full test process reconstruction.

• Record/Stop Control | File Loading | Playback Functions (FF/Rew/Slow-mo) | Visualization Modes: Contour Maps, Thermal Imaging.

• Real-time Per-sensor Pressure Values | Regional/Time-domain Analysis | Center of Pressure (CoP) Tracking | Pressure-Time Curve Visualization

• Data Import/Export Formats | Secondary Analysis Tools | API for Custom Development

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IEST Battery Pressure Distrbution Measure SystemIEST Battery Pressure Distribution Measurement System (BPD1000)

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