Jianhu Battery Environmental Test Chamber – High-Low Temperature & Humidity Chamber (Model JH-BT Series)

Overview

The Jianhu Battery Environmental Test Chamber (JH-BT Series) is an engineered-for-precision environmental simulation system designed specifically for the reliability validation of lithium-ion, solid-state, and next-generation electrochemical energy storage devices. Built upon a dual-refrigeration cascade compressor architecture and integrated steam-humidification with PID-controlled dehumidification, this chamber delivers stable, repeatable thermal-hygrometric profiles across extreme operating envelopes—from arctic cold (-70 °C) to tropical heat (+150 °C) and relative humidity ranges from 10% to 98% RH. Its core function is to replicate real-world climatic stressors in accordance with internationally recognized battery testing protocols—including IEC 62133, IEC 62660, UN 38.3, GB/T 31485, GB/T 31486, GJB 150.9A, and MIL-STD-810H—enabling accelerated life testing, thermal runaway screening, cycle degradation analysis, and safety qualification under controlled, auditable conditions.

Key Features

• Explosion-proof certified chamber construction (ATEX/IECEx-compliant optional configurations available), featuring intrinsically safe wiring, explosion-relief panels, and non-sparking internal components—essential for testing high-energy-density cells and modules.
• High-fidelity temperature control: ±0.5 °C fluctuation and ±2.0 °C uniformity across working volume, validated per ISO 16750-4 and IEC 60068-3-5 calibration procedures.
• Multi-stage humidity regulation with dew-point referenced control, achieving ±2% RH accuracy over full range; condensate management system prevents water accumulation during low-temperature operation.
• Programmable ramp-soak profiles supporting up to 99 segments per test cycle, with seamless transition between heating, cooling, humidifying, and drying phases.
• Structural integrity verified through finite element analysis (FEA); inner chamber fabricated from SUS304 stainless steel with electropolished finish to resist corrosion from electrolyte vapor exposure.
• Modular thermal insulation using vacuum-insulated panels (VIPs) and polyurethane foam (≥150 mm thickness) ensures energy efficiency and minimizes thermal bridging.

Sample Compatibility & Compliance

The JH-BT Series accommodates battery formats ranging from coin cells and pouch cells to prismatic modules and small-format battery packs (up to 500 mm × 500 mm × 400 mm standard; custom larger volumes supported). Internal mounting fixtures, thermocouple feedthroughs, and electrical isolation ports are configurable per user requirements. All units undergo factory verification against ISO/IEC 17025-accredited procedures and include traceable calibration certificates for temperature and humidity sensors (NIST-traceable RTDs and capacitive hygrometers). The system supports compliance documentation packages aligned with GLP, GMP, and FDA 21 CFR Part 11 readiness—including electronic audit trails, user access levels, and data integrity logs.

Software & Data Management

Equipped with Jianhu’s proprietary WinTest Pro v4.2 control software, the chamber enables real-time monitoring, multi-parameter logging (temperature, humidity, elapsed time, alarm status), and automated report generation in PDF/CSV formats. Software architecture complies with IEC 62443-3-3 cybersecurity standards and supports OPC UA integration for MES/SCADA interoperability. Data encryption (AES-256), role-based authentication, and electronic signature capability meet regulatory expectations for regulated industries. Optional cloud-based remote supervision allows secure off-site monitoring via TLS-encrypted web interface with configurable email/SMS alerts for critical events.

Applications

• Pre-qualification testing of battery cells prior to pack integration (per UL 1642, GB/T 18287)
• Thermal abuse simulation for UN 38.3 T.4 (thermal cycling), T.5 (thermal shock), and T.6 (external short circuit under elevated temperature)
• Humidity-induced aging studies on electrode materials and separator integrity
• Validation of BMS thermal management algorithms under dynamic ambient load profiles
• Environmental stress screening (ESS) in production line final test stations
• Research-grade parameter mapping for Arrhenius-based lifetime modeling

FAQ

Does the chamber support simultaneous temperature and humidity ramping?
Yes—the JH-BT Series executes synchronized thermal-hygrometric ramps with independent PID tuning for each parameter, enabling complex profiles such as “hot-humid soak → rapid cooldown → dry freeze” sequences.
Can it be integrated into an existing lab automation framework?
Yes—standard Modbus TCP and optional Ethernet/IP or Profibus-DP interfaces allow direct integration with PLCs, SCADA systems, and LIMS platforms.
What calibration documentation is provided upon delivery?
Each unit ships with a full calibration certificate issued by Jianhu’s ISO/IEC 17025-certified metrology lab, covering temperature uniformity, humidity accuracy, and sensor response time at three representative points within the working volume.
Is remote firmware update capability available?
Yes—WinTest Pro supports secure over-the-air (OTA) updates via authenticated HTTPS channels, with rollback functionality and versioned firmware archives.
How is explosion protection implemented for volatile off-gas scenarios?
The explosion-proof variant includes Class I, Division 1, Group D-rated enclosure, positive-pressure purge system (with N₂ or clean air), spark-resistant fan motors, and continuous hydrogen concentration monitoring with automatic shutdown interlock.