Jianhu JH-Series EV Battery Thermal Management Environmental Test Chamber

Overview

The Jianhu JH-Series EV Battery Thermal Management Environmental Test Chamber is an engineered precision climate chamber specifically designed for the thermal and hygrothermal conditioning of lithium-ion battery cells, modules, and packs during R&D, qualification, and production validation. It operates on a closed-loop air-circulation system with PID-controlled heating, refrigeration, and humidification subsystems—enabling stable, repeatable simulation of real-world ambient conditions critical to battery electrochemical behavior. Unlike general-purpose environmental chambers, the JH-Series integrates structural and control optimizations for battery testing workflows: reinforced internal load-bearing frames accommodate heavy battery assemblies; low-EMI power distribution minimizes interference with BMS signal acquisition; and front-access cable ports (IP54-rated) support seamless integration with cyclers, impedance analyzers, and thermal imaging systems. Its operational envelope—15–45 °C and 30–98 % RH—is aligned with key industry test standards including ISO 12405-2 (electric vehicle battery testing), GB/T 31467.3–2015 (Chinese EV battery safety requirements), and UN ECE R100 (electric powertrain safety regulations). The chamber’s architecture meets mechanical robustness criteria for continuous 24/7 operation under variable thermal loads typical in fast-charging and cold-soak protocols.

Key Features

• High-stability dual-sensor temperature control system with real-time deviation compensation, maintaining ≤ ±2 °C uniformity across full working volume
• Independent humidity regulation via steam generator + solid-state desiccant recovery, achieving ≤ ±3 % RH uniformity and < 3 min recovery time after door opening
• Air-cooled refrigeration circuit with scroll compressor and microchannel condenser—designed for low acoustic emission (< 62 dB(A)) and minimal vibration transmission to sensitive battery samples
• Modular interior structure with adjustable stainless-steel shelves and M8/M10 mounting rails, supporting battery modules up to 150 kg per shelf
• Integrated RS485 Modbus RTU and Ethernet TCP/IP interfaces for direct communication with battery cycler software (e.g., Arbin, Bio-Logic, MACCOR)
• Touchscreen HMI with multi-level user access control (operator, engineer, administrator), audit-trail logging, and configurable alarm thresholds per parameter

Sample Compatibility & Compliance

The JH-Series accommodates cylindrical (18650, 21700, 4680), prismatic, and pouch-format battery units—from single-cell prototypes to full traction battery packs (up to 1.2 m × 0.8 m × 0.3 m). Internal dimensions are fully customizable to match OEM-defined test fixtures and thermal interface requirements. All materials in contact with test samples conform to UL 94 V-0 flame rating and RoHS 2011/65/EU. The chamber complies with IEC 60068-3-5 (environmental testing guidance), IEC 62660-1 (secondary lithium cells for propulsion), and supports GLP/GMP-aligned validation protocols—including IQ/OQ/PQ documentation templates compliant with ISO/IEC 17025 and FDA 21 CFR Part 11 for electronic records and signatures.

Software & Data Management

Equipped with Jianhu’s proprietary JH-EMS v3.2 Environmental Monitoring Suite, the chamber delivers synchronized time-series logging of temperature, humidity, chamber pressure, and door status at 1 Hz resolution. Data exports natively to CSV, Excel, and MATLAB-compatible .mat formats. Optional cloud gateway enables remote monitoring via secure TLS 1.2–encrypted MQTT channels, with role-based dashboards accessible from desktop or mobile browsers. All data changes—including setpoint modifications, calibration adjustments, and alarm acknowledgments—are timestamped, user-ID stamped, and stored in a write-once-read-many (WORM) archive meeting ISO 13485 traceability requirements for medical-grade battery development.

Applications

• Accelerated life testing under cyclic thermal-humidity stress (e.g., 85 °C/85 % RH for electrolyte stability evaluation)
• Cold-start performance validation at −20 °C equivalent (via controlled ramp-down and hold)
• Thermal runaway propagation studies using embedded thermocouple arrays and IR camera synchronization
• Humidity-induced corrosion screening of busbar welds and cell casing seals
• Pre-conditioning of battery modules prior to DCIR, EIS, or pulse-power characterization
• Supporting ISO 12405-4 (cycle life under variable climate) and SAE J2464 (abuse tolerance) test sequences

FAQ

Is this chamber suitable for UL 1642 or IEC 62133 safety certification testing?
Yes—the chamber’s temperature/humidity accuracy, uniformity, and stability meet the instrumentation requirements specified in Clause 7.2 of IEC 62133-2:2017 and Section 5.1 of UL 1642 6th Edition for preconditioning phases.
Can the chamber be integrated into an automated test cell with PLC-based sequencing?
Yes—standard Modbus RTU over RS485 allows deterministic command-response cycles with cycle times < 100 ms; optional Profibus-DP and EtherCAT gateways are available for factory-floor automation integration.
What calibration documentation is provided with delivery?
Each unit ships with NIST-traceable calibration certificates for temperature (PT100 sensors) and humidity (capacitive RH transducers), performed per ISO/IEC 17025 accredited procedures by Jianhu’s in-house metrology lab.
Does the system support remote firmware updates and diagnostic telemetry?
Yes—secure OTA updates are supported via HTTPS-based package deployment; diagnostic logs include compressor runtime, refrigerant pressure trends, and humidity sensor drift metrics.
Are custom insulation thicknesses or explosion-proof modifications available?
Yes—Jianhu offers ATEX Zone 2 / IECEx-certified variants with enhanced thermal insulation (up to 150 mm polyurethane), inert gas purge capability (N₂ or Ar), and intrinsically safe internal wiring harnesses upon engineering review.