JH— Membrane Dielectric Breakdown Voltage Tester
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | JH— Membrane Dielectric Breakdown Voltage Tester |
| Price Range | USD 140 – 1,400 |
Overview
The JH— Membrane Dielectric Breakdown Voltage Tester is an engineered solution for precise dielectric strength evaluation of polymeric separator membranes used in lithium-ion batteries, fuel cells, and advanced filtration systems. Operating on the principle of controlled voltage ramping under standardized electrode configuration (e.g., ASTM D149, IEC 60243-1), the instrument applies a continuously increasing AC or DC voltage across a conditioned membrane sample until electrical breakdown occurs—defined as the onset of sustained current flow exceeding a predefined threshold (typically 1–10 mA). The system records the corresponding voltage as the dielectric breakdown voltage (BDV), a critical parameter directly correlated with insulation integrity, thermal stability, and long-term electrochemical safety. Designed specifically for thin-film dielectrics (thickness range: 5–50 µm), the tester integrates high-impedance measurement architecture to minimize leakage current interference and ensure fidelity in low-conductivity environments.
Key Features
- High-resolution voltage sourcing: Programmable output up to 10 kV with ±0.1% accuracy and <100 V/s ramp rate control for compliant step-stress or continuous ramp testing.
- Picoampere-level current detection: Built-in electrometer-grade current measurement (resolution down to 1 pA) enables reliable identification of pre-breakdown conduction and true breakdown onset.
- Environmental compensation: Integrated temperature and relative humidity sensors feed real-time data into correction algorithms per ISO 293 and ASTM D877, minimizing drift due to ambient fluctuations.
- Portable industrial design: Compact footprint (280 × 220 × 160 mm), weight <5 kg, and shock-absorbing carry case enable deployment in QC labs, production floors, and field service environments.
- Touch-enabled HMI: 7-inch capacitive LCD interface with guided workflow navigation, multilingual support (English/Chinese), and context-sensitive help prompts for operator independence.
- Modular hardware architecture: Field-replaceable high-voltage modules, electrode fixtures, and sensor assemblies reduce mean time to repair (MTTR) and extend service life without factory return.
Sample Compatibility & Compliance
The JH— Membrane Dielectric Breakdown Voltage Tester accommodates standard circular specimens (diameter: 25–50 mm) and rectangular strips (up to 100 mm length) with automated centering alignment. Compatible with microporous polyolefin (PP/PE), ceramic-coated separators, gel polymer electrolytes, and composite nonwovens. Fully supports test protocols defined in GB/T 36363–2018 (Chinese national standard for lithium battery separators), ISO 12105:2022 (electrical insulation of thin films), and ASTM F2927–20 (standard test method for dielectric breakdown of battery separator materials). Optional calibration certificates traceable to NIM (National Institute of Metrology, China) and optional GLP-compliant audit trails available upon request.
Software & Data Management
Equipped with Jianhu TestSuite™ v3.2 firmware, the instrument supports local storage of ≥10,000 test records with timestamp, environmental metadata, operator ID, and raw voltage/current waveforms. Data export formats include CSV, PDF reports (with customizable templates), and XML for LIMS integration. Wireless connectivity via Bluetooth 5.0 and IEEE 802.11n Wi-Fi enables secure transmission to Windows/macOS workstations or cloud-based QA platforms. Audit trail functionality meets FDA 21 CFR Part 11 requirements when configured with user authentication and electronic signature modules. Firmware updates delivered over-the-air with version-controlled release notes and validation documentation.
Applications
- Quality assurance of Li-ion battery separators during incoming material inspection and final lot release.
- R&D screening of novel ceramic/polymer hybrid membranes under variable humidity and temperature preconditioning.
- Failure analysis of dendrite-induced short circuits by correlating BDV shifts with post-cycling SEM cross-sections.
- Compliance verification for UN 38.3 Section 38.3.11 (thermal and electrical stress resistance of cell components).
- Accelerated aging studies tracking BDV degradation after thermal soak (85°C/1000 h) or electrolyte immersion (LiPF₆ in EC/DMC).
- Supporting ISO/IEC 17025-accredited laboratories requiring documented uncertainty budgets for dielectric testing.
FAQ
What voltage ranges does the JH— Membrane Dielectric Breakdown Voltage Tester support?
Standard configuration covers 0–5 kV AC/DC; optional high-voltage module extends range to 0–10 kV.
Is the instrument compliant with international safety standards for high-voltage testing?
Yes—designed and tested to IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and equipped with dual redundant interlock circuits, emergency stop, and grounded shielded enclosure.
Can test data be integrated into enterprise quality management systems (QMS)?
Yes—via configurable API endpoints and HL7-compatible metadata schema; validated integrations exist with MasterControl, TrackWise, and Qualio.
Does the system require annual recalibration? What documentation is provided?
Annual calibration recommended per ISO/IEC 17025; NIST-traceable calibration certificate included with initial shipment, with optional accredited lab re-certification services.
Are custom electrode configurations available for non-standard membrane geometries?
Yes—custom brass or stainless-steel electrode sets (e.g., needle-plane, sphere-plane, or multi-point arrays) can be ordered with lead times of 4–6 weeks.
