Jianhu JH-Series Battery High-Low Temperature Environmental Test Chamber

Overview

The Jianhu JH-Series Battery High-Low Temperature Environmental Test Chamber is an engineered solution for rigorous thermal validation of lithium-ion, solid-state, and next-generation electrochemical energy storage systems. Designed specifically for battery R&D labs, cell manufacturing QC lines, and automotive Tier-1 suppliers, this chamber implements a dual-stage mechanical compression refrigeration system coupled with PID-controlled resistive heating to achieve stable, repeatable, and traceable thermal environments. Its operational principle relies on closed-loop thermodynamic control: high-stability PT100 Class A sensors continuously monitor spatial temperature distribution, feeding real-time data to a programmable logic controller (PLC) with adaptive algorithm tuning. This architecture ensures compliance with IEC 62660-1, UN 38.3 Section 38.3.4 (thermal cycling), and ISO 12405-2 requirements for electric vehicle battery qualification. Unlike generic environmental chambers, the JH-Series integrates battery-specific safety interlocks—including intrinsically safe internal wiring, explosion-proof lighting, gas-tight sealing, and optional inert purge capability—to mitigate thermal runaway risks during accelerated life testing.

Key Features

• Explosion-proof certified chamber construction (optional ATEX Zone 1 / IECEx Zone 1 configuration) with reinforced stainless-steel interior and non-sparking hardware
• Dual-stage cascade refrigeration system enabling reliable operation down to -70 °C without liquid nitrogen dependency
• High-resolution temperature control: ±0.5 °C fluctuation and ±2.0 °C uniformity across full working volume per IEC 60068-3-5
• Rapid thermal transition profiles: programmable ramp rates up to 10 °C/min (subject to load and volume); verified cooling from +25 °C to -40 °C in ≤45 minutes
• Integrated safety architecture: over-temperature cut-off, door interlock, pressure relief valve, and optional hydrogen sensor integration
• Modular design supporting custom interior dimensions (100–1000 L standard; bespoke configurations up to 3000 L with structural reinforcement)
• Compliance-ready documentation package including factory calibration certificates (NIST-traceable), IQ/OQ protocols, and material test reports (MTRs)

Sample Compatibility & Compliance

The JH-Series accommodates cylindrical (18650, 21700, 4680), prismatic, and pouch-format battery cells and modules—up to 100 kg payload—with configurable internal mounting rails and insulated cable feedthroughs (IP65-rated). All models meet GB/T 2423.1–2022 (cold), GB/T 2423.2–2022 (dry heat), and GB/T 2423.22–2012 (temperature shock) standards. Optional configurations support UL 1642, UL 2580, and IEEE 1625/1679 test sequences. The chamber’s explosion-proof variant conforms to GB 3836.1–2021 (equivalent to IEC 60079-0) and includes flameproof enclosure rating Ex d IIB T4 Gb. For GLP/GMP-regulated environments, optional 21 CFR Part 11-compliant audit trail logging and electronic signature modules are available.

Software & Data Management

Equipped with Jianhu’s proprietary TC-Studio v4.2 control software, the chamber supports multi-segment thermal profiling, real-time graphing, and automated report generation (PDF/CSV/XLSX). The system logs timestamped temperature, humidity (if equipped), pressure, and alarm status at user-defined intervals (100 ms minimum resolution). Data integrity is ensured via encrypted local storage (SSD), redundant SD card backup, and optional OPC UA or Modbus TCP connectivity for integration into MES/SCADA platforms. Calibration history, operator actions, and system diagnostics are retained with immutable timestamps—fully satisfying FDA 21 CFR Part 11 requirements when configured with role-based access control and electronic signatures.

Applications

• Accelerated calendar and cycle life testing under controlled thermal stress (e.g., 45 °C storage, -20 °C discharge)
• Thermal runaway propagation studies using calibrated thermocouple arrays and IR imaging synchronization
• Cell-level validation per UN 38.3 thermal cycling (T1–T4) and IEC 62660-2 abuse testing
• Electrolyte stability evaluation across extended low-temperature ranges (-60 °C)
• Pre-conditioning of battery packs prior to mechanical shock, vibration, or crush testing
• Supporting DOE-compliant Design of Experiments (DoE) for electrolyte formulation optimization

FAQ

Does the JH-Series comply with international battery safety standards?
Yes—standard models meet IEC 62660-1, UN 38.3, and GB/T 31485; explosion-proof variants carry GB 3836 certification and can be configured for ATEX/IECEx Zone 1 use.
Can the chamber interface with battery cyclers or BMS test systems?
Yes—via analog voltage outputs (0–10 V), digital I/O, or industrial protocols (Modbus RTU/TCP, OPC UA) for synchronized thermal-electrical stress testing.
What is the warranty and service coverage outside China?
Standard global warranty is 24 months parts and labor; extended service plans include remote diagnostics, annual on-site calibration, and priority spare parts logistics through authorized partners in EU, NA, and APAC regions.
Is customization available for non-standard temperature ranges or chamber geometry?
Yes—Jianhu provides full engineering collaboration for custom thermal performance envelopes (e.g., -80 °C operation), specialized internal fixtures, and integration with fume hoods or gloveboxes.
How is temperature uniformity validated and documented?
Each unit undergoes 9-point temperature mapping per IEC 60068-3-5 using NIST-traceable sensors; final validation reports include uncertainty budgets and deviation heatmaps.