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China Suppliers Factory Forced Internal Short Circuit Tester for Battery Safety Verification
⚙️ Technical Specifications
| Product Name | Forced internal short-circuit tester |
| Product Model | TA-QZNDL-2KN-150L |
| Structural Method | Vertical: High-precision servo electric cylinder transmission structure |
| Control Method | Touch screen thermostat + remote computer control |
| Pressure Range | 0.05kN – 2kN |
| Pressure Control Accuracy | ≤0.5% FS (steady state) |
| Power Collection |
Pressure acquisition communication speed: Instant messaging at 1000Hz to improve force control accuracy. Export data frequency to match voltage and temperature. |
| Test Bottom Plate | 200 × 200 mm |
| Extrusion Stroke | 0 – 150 mm |
| Displacement Accuracy | ±0.1 mm |
| Extrusion Speed | 0.01 – 5 mm/s |
| Speed Accuracy | ±0.1 mm/s |
| Extrusion Head |
Extrusion head: 10×10 mm – 2 pieces Nitrile rubber: 10×10×2 mm – 10 pieces Acrylic sheet: 5×5×2 mm – 10 pieces |
🔬 Core Features
- ⚡ High-precision servo drive: The pressure loading is stable, avoiding speed fluctuations that may cause test failure.
- 🔩 Precisely customized fixtures: Suitable for cylindrical, square, and pouch-type battery-specific pressure heads.
- 📊 Multi-parameter real-time synchronization: Pressure, voltage, temperature, and displacement curves are displayed simultaneously.
- 🛑 Intelligent end-point determination: Automatically identifies a 50 mV voltage drop and immediately stops the machine, meeting standard requirements.
📋 Standards Compliance
- ✅ JIS C 8714
- ✅ IEC 62133-2
- ✅ UN 38.3
🛡️ Safety Mechanisms
🧱
Explosion-proof Box Body
Made of thickened steel plates and equipped with explosion-proof glass observation windows, ensuring safety and reliability.
💨
Automatic Smoke Exhaust
Linked with smoke detectors, automatically releases air in case of thermal runaway.
🔥
Fire Extinguishing Interface
Reserved ports for nitrogen/carbon dioxide fire extinguishing connection.
🚪
Pressure Relief Structure
Equipped with a pressure relief door to prevent instantaneous overpressure inside the box.
💻 Software Capabilities
📈
Visualized Curves
Automatically generate interactive curves such as pressure-time and voltage-displacement.
📄
Report Export
Generate PDF/Excel test reports in accordance with IEC/JIS standards with one click.
🌐
Remote Monitoring
Support remote real-time video monitoring and data viewing.
❓ FAQ
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1. What is the primary difference between the Forced Internal Short Circuit (FISC) test and standard crush or nail penetration tests?Although all types of tests simulate battery short circuits, the FISC mandatory internal short circuit test (in accordance with JIS C 8714 and IEC 62133) has the highest accuracy and is the closest to the real manufacturing defect scenarios.
Conventional compression/needle puncture: This belongs to external severe damage, simulating severe deformation caused by external force impact.
FISC: This simulates spontaneous internal short circuits caused by the introduction of metal impurities (such as nickel chips) during production. It requires slowly applying pressure to the preset nickel sheet position in a temperature-controlled environment, with extremely high requirements for pressure control accuracy (0.1N level) and voltage drop detection sensitivity. -
2. How does the tester accurately determine the "end of test" point to ensure compliance?According to the JIS C 8714 standard, the equipment needs to monitor voltage changes in real time. The testing equipment is equipped with a high-frequency data acquisition system:
Automatic shutdown trigger: When the battery voltage drops (typically 50 mV), the servo motor is controlled to stop applying pressure and maintain pressure within milliseconds.
Dual judgment logic: It can simultaneously use pressure compliance (such as 800N) or displacement compliance as the shutdown conditions.
The high sensitivity control can avoid excessive pressure causing an external short circuit, accurately reproducing the instant when an internal short circuit occurs. -
3. How is the pressure precision maintained during the slow-speed compression process?This is precisely where the core difference lies between professional equipment and low-end equipment:
Precise servo control: Utilizing high-precision AC servo motors and precise ball screws, it can achieve ultra-smooth operation at speeds as low as 0.1 mm/s, eliminating the common crawling and jitter problems in hydraulic systems.
High-precision load sensors: Pressure fluctuations are controlled within ±0.5%, fully meeting the strict requirements of standards for pressure application rate and pressure accuracy throughout the process. -
4. What battery types and form factors are compatible with this tester?The tester is designed to accommodate a wide range of lithium battery form factors, including cylindrical cells, prismatic (square) cells, and pouch-type (soft pack) cells. Precisely customized fixtures and pressure heads are available for each type, ensuring accurate and repeatable test results across all standard battery geometries used in consumer electronics, electric vehicles, and energy storage systems.
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5. Can the equipment be integrated with existing laboratory data management systems?Yes. The software platform supports one-click export of PDF and Excel test reports formatted to IEC/JIS standards. Remote real-time monitoring and data viewing are also supported, allowing seamless integration with laboratory information management systems (LIMS). The 1000 Hz data acquisition rate ensures that all pressure, voltage, temperature, and displacement data can be synchronized and logged with high fidelity for post-test analysis and compliance documentation.
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6. What safety features protect operators during a thermal runaway event?The tester incorporates multiple layers of safety protection:
Explosion-proof enclosure: Thickened steel plate construction with explosion-proof glass observation windows.
Automatic smoke exhaust: Smoke detectors are linked to an automatic ventilation system that activates immediately upon detection of thermal runaway gases.
Fire suppression interface: Pre-installed ports allow direct connection to nitrogen or carbon dioxide fire extinguishing systems.
Pressure relief door: Prevents dangerous overpressure build-up inside the test chamber, protecting both operators and surrounding equipment.