Cell thickness gauge

The Cell Thickness Gauge is a precision measuring instrument designed for accurate thickness measurement of lithium-ion battery cells. The system is used to evaluate dimensional consistency and thickness variation of pouch cells, cylindrical cells, coin cells, and laminated battery structures during research, production, and quality control processes. It provides reliable micron-level thickness data to support battery performance analysis, safety evaluation, and process optimization.

Application

(1) Thickness measurement of lithium-ion pouch cells, cylindrical cells, and coin cells.

(2) Dimensional consistency inspection during cell production and assembly.

(3) Thickness comparison before and after cycling, formation, or aging tests.

(4) Evaluation of lamination quality and stack uniformity in battery electrodes.

(5) Incoming inspection and batch quality control of battery cells.

(6) Laboratory research and process verification for battery development.

Standards

(1) ASTM E83 – Standard Test Method for Verification of Linear Displacement Measuring Systems.

(2) ISO 3611 – Calibration of Measuring Instruments – Verification of Linear Measuring Instruments.

(3) IEC 62660-2 – Secondary Lithium-Ion Cells – Reliability and Abuse Testing (reference application).

(4) RoHS – Restriction of Hazardous Substances Directive.

(5) CE Certification – Conformité Européenne.

Features

(1) High-resolution thickness measurement suitable for battery cells and stacked structures.

(2) Non-contact laser displacement sensor reduces mechanical influence on samples.

(3) High-speed scanning for efficient batch measurement.

(4) Adjustable measuring force to accommodate delicate or solid-state battery structures.

(5) Stable mechanical frame ensures repeatable measurement results.

(6) Integrated data acquisition and digital display system.

(7) Automatic calibration compensation for long-term measurement stability.

(8) Safety protection with emergency stop and electrical safeguards.

Technical Parameters

Parameter	Specification
Measurement Range	0 – 50 mm
Resolution	0.1 μm
Measurement Accuracy	±0.5 μm
Repeatability	±0.2 μm
Scan Speed	Up to 50 mm/s
Data Acquisition Rate	10,000 points/second
Sensor Type	Laser displacement sensor
Power Supply	AC 100–240 V, 50/60 Hz
Dimensions (W×D×H)	300 × 250 × 400 mm
Weight	15 kg (net) / 18 kg (gross)

Accessories

(1) Non-magnetic measurement anvils (flat, spherical, cylindrical).

(2) Calibration foils for thickness verification.

(3) Laser sensor and optical cleaning tools.

(4) Data acquisition and analysis software.

(5) NIST-traceable gauge blocks for calibration.

(6) Power cables and grounding components.

(7) Operation and maintenance documentation.

Test Procedure

(1) Power on the instrument and perform system initialization.

(2) Calibrate the gauge using certified gauge blocks or calibration foils.

(3) Place the battery cell on the measurement platform.

(4) Adjust the measuring force and sensor position as required.

(5) Start thickness measurement and record real-time data.

(6) Save or export measurement results for analysis and reporting.

Maintenance

(1) Clean the measurement platform and optical components regularly.

(2) Verify calibration accuracy at scheduled intervals.

(3) Inspect sensor alignment and mechanical stability periodically.

(4) Avoid contamination of optical components by dust or electrolyte residues.

(5) Store the instrument in a clean and temperature-controlled environment.

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