Model Coin-cell Swelling System
The Model Coin-Cell Swelling System is designed for in-situ measurement of thickness and volume changes of coin-type lithium-ion cells during charge and discharge processes. The system adopts high-precision non-contact laser displacement sensing to capture micron-level swelling behavior under controlled temperature and pressure conditions. It provides reliable and repeatable data for material screening, structural optimization, and safety evaluation of coin-cell batteries.
Application
(1) In-situ swelling and thickness change measurement of coin-type lithium-ion cells during cycling.
(2) Expansion behavior evaluation of standard coin-cell formats including 2032, 2025, and 2016.
(3) Screening and comparison of electrode materials such as graphite, silicon-based anodes, and solid-state electrolytes.
(4) Mechanical stability and fatigue analysis of electrode stacks under pressure cycling.
(5) Thermal–mechanical coupling analysis under high-temperature and low-temperature environments.
(6) Safety and reliability assessment during fast charge, overcharge, and abuse testing.
(7) R&D validation and quality consistency evaluation for laboratory-scale battery development.
Standards
(1) ASTM E83 – Standard Test Method for Verification of Linear Displacement Measuring Systems.
(2) ISO 12417-1 – Mechanical Testing of Metals – Dilation Test (reference method).
(3) IEC 62660-2 – Secondary Lithium-Ion Cells – Reliability and Abuse Testing.
(4) DIN 51221 – Testing of Adhesives – Determination of Tensile Shear Strength (reference for deformation testing).
(5) CE Certification – Conformité Européenne.
Features
(1) Micron-level non-contact laser displacement measurement with high repeatability.
(2) High-resolution detection of subtle thickness and volume changes in coin cells.
(3) Multi-environment testing capability with integrated temperature chamber.
(4) Dynamic pressure loading for electrode stack fatigue and structural response analysis.
(5) Eight-channel parallel testing to improve screening efficiency and data consistency.
(6) Laser-guided positioning system for precise coin-cell alignment.
(7) Automatic thermal drift compensation during long-term cycling tests.
(8) Dual redundant safety protection with emergency stop function.
(9) Glovebox-compatible design for oxygen- and moisture-sensitive chemistries.
Parameters
| Parameter | Specification |
|---|---|
| Displacement Range | ±500 μm (linear), ±0.5° (angular) |
| Linear Measurement Accuracy | ±0.05 μm |
| Angular Measurement Accuracy | ±0.005° |
| Displacement Resolution | 0.1 μm |
| Temperature Range | -20°C to 150°C |
| Temperature Ramp Rate | ≤ 2°C/min |
| Pressure Range | 0–10 bar |
| Test Channels | 8 channels |
| Data Acquisition Rate | 10,000 points/s/channel |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Dimensions (W×D×H) | 400 × 350 × 600 mm |
| Weight | 65 kg (net) / 80 kg (gross) |
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