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Battery packs integrate multiple cells with a BMS and thermal controls for stable power. Key uses include EVs, energy storage, electronics, drones, and medical devices. Examples: Tesla’s 4680 and BYD’s Blade Battery. The temperature and humidity testing of battery packs is a critical evaluation of their performance and reliability under varying thermal and hygrometric conditions. To simulate real-world operating environments, battery packs must undergo comprehensive testing across diverse conditions, including low temperature with low humidity (LT/LH), low temperature with high humidity (LT/HH), and high temperature with high humidity (HT/HH). Based on actual case studies, this paper analyzes the technical requirements that a constant temperature and humidity test chamber must fulfill to conduct these assessments effectively. Key Technical Requirements for Test Chambers: Temperature Range: Capable of achieving extreme conditions (e.g., -40°C to +85°C) with high stability (±0.5°C). Humidity Range: Adjustable from 10% to 98% RH, ensuring precision (±2% RH). Ramp Rates: Controllable temperature/humidity transition speeds (e.g., ≥1°C/min) to simulate rapid environmental changes. Uniformity: Maintain consistent temperature (±1°C) and humidity (±3% RH) distribution within the workspace. Data Logging: Real-time monitoring and recording of test parameters for compliance with standards (e.g., ISO 16750, GB/T 31467). Safety Features: Explosion-proof design, leak detection, and emergency shutdown protocols for hazardous scenarios. Battery Pack Environmental Testing Conditions 1. Temperature Testing High-Temperature Testing: Simulates vehicle operation or storage in hot climates. Test temperatures typically range from 45°C to 70°C, depending on standards (e.g., ISO, GB, or customer specifications). Test items include: High-temperature storage High-temperature cycling High-temperature discharge Low-Temperature Testing: Simulates vehicle operation or storage in cold climates. Test temperatures typically range from -40°C to -20°C, depending on standards. Test items include: Low-temperature storage Low-temperature startup Low-temperature cycling Low-temperature discharge Thermal Shock Testing: Simulates rapid temperature fluctuations (e.g., -40°C ↔ 70°C) to evaluate the battery pack’s resistance to extreme thermal stress. Thermal Runaway Testing: Simulates internal/external short circuits to assess the effectiveness of the battery pack’s thermal management and safety mechanisms, preventing explosions or fires. 2. Humidity Testing Damp Heat Cycling Test: Simulates high-temperature, high-humidity environments (e.g., 40°C / 95% RH) to evaluate corrosion resistance and sealing performance. 3. Salt Spray Testing Salt Fog Corrosion Test: Simulates high-salinity coastal environments to verify the battery pack’s corrosion resistance. 4. Waterproof Testing Water Ingress Test: Simulates water exposure (e.g., immersion, rain) to validate waterproofing performance (evaluated by IP protection rating). 5. Dustproof Testing Dust Ingress Test: Simulates high-dust environments (e.g., deserts) to verify sealing integrity. 6. Low-Pressure Testing Altitude Simulation Test: Simulates atmospheric pressure changes at different elevations to assess battery pack adaptability. Technical Specifications for Constant Temperature & Humidity Test Chamber (Compliant with customer requirements) Chamber Dimensions Internal dimensions (W×D×H): 3000 × 2000 × 2000 mm Functional Requirements 1.Temperature Range: -60°C to +150°C 2.Heating Rate: ≥1°C/min (average, under load: 1T, 5kW heat output) from -40°C to +125°C 3.Cooling Rate: ≥1°C/min (average, under load: 1T, 5kW heat output) from +125°C to -40°C 4.Temperature Resolution: 0.01°C 5.emperature Fluctuation: ≤±0.2°C (no load) 6.Temperature Deviation: ≤±2°C 7.Temperature Uniformity: ≤2°C (no load) 8.Continuous Low-Temperature Operation: 1000 hours at low temperature without frost/icing (requires dry air system) 9.Humidity Resolution: 0.1% RH 10.Humidity Fluctuation: ≤±2.5% RH 11.Humidity Deviation: ≤+3% RH (when >75% RH) ≤±5% RH (when <75% RH) 12.Extended Operation Capability: Low-temperature & low-humidity: 240 hours High-temperature & low-humidity: 240 hours Key Enhancements & Scientific Rigor 1.Standard References: Added implicit compliance with ISO, GB, and IP standards for credibility. 2.Precision Metrics: Specified resolution, uniformity, and deviation to meet engineering demands. 3.Safety & Reliability: Highlighted frost prevention (dry air system) and long-duration testing capability. 4.Clarity & Structure: Organized into logical sections for readability while maintaining technical accuracy. To meet the rigorous demands of battery pack environmental testing, our advanced constant temperature and humidity test chambers are engineered to deliver precision, reliability, and compliance with global standards. Why Choose Our Environmental Test Chambers? ✅ Wide Temperature Range: -70°C to +150°C for comprehensive high/low-temperature testing, including thermal shock. ✅ Rapid Temperature Transition: ≥1°C/min heating/cooling rates under load (1T, 5kW heat output). ✅ High Humidity Precision: 10%–98% RH with ±2.5% RH fluctuation and 0.1% resolution for accurate damp heat cycling. ✅ Stable Long-Duration Operation: 1000+ hours at extreme low temps (anti-frost dry air system included). 240+ hours in low-humidity conditions (both high & low temp). ✅ Uniformity & Accuracy: ≤±0.2°C temp fluctuation (no load) ≤2°C spatial uniformity. ✅ Large Testing Capacity: 3000×2000×2000mm (W×D×H) internal workspace of Walk-in Climate Test Chamber for full-scale battery pack evaluations. ✅ Safety & Durability: Designed for thermal runaway prevention, salt fog, waterproof (IP-rated), and dustproof testing.
Based on new technologies and new materials, we will modernize the development and utilization of traditional renewable energy. We will replace fossil energy with renewable energy that has limited resources and pollutes the environment. Among them, solar energy, wind energy, biomass energy, tidal energy, geothermal energy, hydrogen energy and nuclear energy are the key development energy determined by the United Nations. The collectors and converters of new energy often need to be placed in the outdoor environment, so the detection of these equipment materials and design is an important part.
Semiconductor products are often used in high-end electronic equipment, such as medical devices and communication equipment, so its quality and reliability can not be ignored, reliability testing is through a series of experiments and analytical means to evaluate the reliability，stability and life of semiconductor devices under specific conditions, is an important means to ensure product quality and stability, and also the basis of customer trust and satisfaction. Therefore, the establishment of scientific and rigorous semiconductor reliability test standards is crucial to the development of the semiconductor industry.
With the vigorous development of the world aviation industry, the environmental test of aviation airborne products, as an important part of airworthiness compliance verification, has been paid more and more attention. It has become a necessary test project for airworthiness certification of aviation airborne products at all levels, as well as an important means of product quality control in the aviation industry, which effectively improves the reliability and safety of aviation equipment.
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Dongguan, China – 27-MAY. The 31st Xin’an Basketball Tournament concluded with an exciting victory for LAB COMPANION LTD’s team, led by their basketball-loving CEO, in the Men’s Group B division. The hard-fought championship showcased teamwork, perseverance, and sportsmanship—values that also drive the company’s success in the environmental testing industry. Facing a 12-point deficit in the championship game, the Lab-Comapnion team refused to relent. Their disciplined execution and mental resilience fueled a stunning reversal,clawing back to seize the lead and ultimately clinch the crown. Basketball tournaments like Xin’an promote physical fitness, team cohesion, and friendly competition. They serve as a reminder that dedication and collaboration—both on the court and in the workplace—lead to outstanding results. As a leading manufacturer of environmental test chambers, LAB COMPANION LTD specializes in high-quality climate simulation equipment for laboratories and industrial applications. Just as in basketball, the company emphasizes precision, reliability, and innovation to help clients achieve their goals. "Winning the championship was a team effort, much like how we approach our work at Lab-Companion," said the CEO. "We’re proud of this achievement and remain committed to excellence in everything we do." About Lab Companion Ltd Specializing in environmental test chambers, Guangdong Lab Companion Ltd provides advanced simulation equipment for temperature, humidity, and other climatic conditions, serving industries worldwide with precision and innovation.
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Dongguan, China – May 24, 2025 – Lab Companion (Guangdong Hongzhan Technology Co., Ltd.), a one of the global participant in environmental testing equipment, has been granted a pivotal patent for its innovative "High and Low-Temperature Testing Device for Semiconductor Chips" (Patent No. ZL 2024 1 1732671.7). This advancement reinforces the company’s position at the forefront of precision environmental simulation technology. Innovation at the CoreThe newly patented device, R&D team organized and led by Xue Zeming, is designed to perform rigorous high and low-temperature tests on semiconductor chips, ensuring their reliability under extreme conditions. This innovation aligns perfectly with GLC’s mission to deliver cutting-edge environmental testing solutions that meet the evolving demands of industries such as electronics, aerospace, and automotive manufacturing. Patent Overview: Precision Meets Reliability It enables rapid and accurate temperature cycling between extreme highs and lows (–70°C to +180°C), simulating harsh operational environments to detect early failures in chips. Key features include: ▪ Uniform Thermal Distribution: Ensures consistent test conditions across all samples. ▪ Energy Efficiency: Optimized design reduces power consumption without compromising performance. ▪ Modular Integration: Compatible with LAB COMPANION’s suite of environmental test chambers for seamless scalability. Industry Applications: From Labs to Production Lines The technology is tailored for: ▪ Semiconductor Manufacturing: Validates chip durability for automotive, aerospace, and 5G applications. ▪ R&D Laboratories: Accelerates product development cycles by identifying material weaknesses under stress. ▪ Quality Assurance: Meets international standards (e.g., MIL-STD-810, IEC 60068) for reliability testing. LAB COMPANION’s Environmental Testing Legacy As a pioneer in environmental simulation, LAB COMPANION has consistently bridged the gap between laboratory research and industrial demands. This patent expands its portfolio of test chambers, which include: ▪ Thermal Shock Chambers ▪ Climate Simulation Chambers ▪ Customized Stress-Testing Solutions “This invention reflects our commitment to solving real-world engineering challenges,” said Xue Zeming, Lead Engineer at LAB COMPANION. “By integrating it with our existing systems, we empower clients to push the limits of product reliability.” About LAB COMPANION Guangdong Lab-Companion Ltd. (GLC) is a global provider of high-performance environmental test chambers, including temperature and humidity chambers, thermal shock chambers, and customized testing solutions. With a focus on innovation and reliability, GLC serves clients worldwide, helping them validate product quality under the most demanding conditions. For media inquiries, please contact:Email: info@labcompanion.cn
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Guangdong, China–May 4, 2025–GUANGDONG LAB COMPANION LTD, a leading manufacturer in the environmental test chamber industry, marked its 20th anniversary today with a special celebration for all employees. We would be remiss not to mention this is milestone event highlighted for the company. As part of the festivities, employees gathered for an evening banquet after work, fostering camaraderie and reflecting on two decades of shared achievements. The celebration also honored the recent International Workers’ Day, paying tribute to the diligence and perseverance of all laborers. “Every achievement stems from collective effort,” CEO said. “We extend our deepest gratitude to every team member whose hard work has driven LABCOMPANION’s growth.” Following the dinner, the company’s administrative team distributed commemorative gifts to each attendee, symbolizing gratitude and a forward-looking vision. Thoughtful Gifts with Meaningful Messages: Custom Umbrella–Engraved with the phrase "LABCOMPANION walks with you through wind and rain, sheltering you and holding up the sky," the gift represents the company’s enduring support for its team. Power Bank–Accompanied by the motto "LAB COMPANION grows with you, spreading positive energy to all," it embodies the spirit of mutual progress. Notebook–Inscribed with "Harvest knowledge, embrace learning, and advance together," it encourages continuous self-improvement and collaboration. "These gifts are more than tokens; they reflect our core values and appreciation for every employee’s contribution," added the representative. "The past 20 years have been a journey of challenges and triumphs, and we look forward to scaling new heights together." Since its founding in 2005, GUANGDONG LAB COMPANION LTD has been at the forefront of environmental testing solutions, serving global clients with cutting-edge environment test equipment. The anniversary celebration reinforced its culture of unity and innovation as the company steps into its next chapter. LAB COMPANION proudly commemorates two decades of innovation and growth. We extend our profound appreciation to our committed workforce for their exceptional contributions and to our loyal customers for their continued partnership and confidence in our solutions. About GUANGDONG LAB COMPANION LTD Specializing in the R&D and production of environmental test chambers, LABCOMPANION provides reliable simulation equipment for industries worldwide, adhering to stringent quality standards and customer-centric values.
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Dongguan, China –April 2, 2025 –Lab Companion, a leading innovator in environmental testing solutions, has been granted a groundbreaking patent for its advanced high-low temperature test chamber designed for semiconductor chip detection. The patent, officially issued by the China National Intellectual Property Administration on April 1, 2025 (Patent No. ZL 2024 1 1290322.4), marks a significant milestone in the company’s commitment to precision and reliability in industrial testing. Revolutionizing Semiconductor Testing The newly patented technology, introduces a cutting-edge system capable of subjecting semiconductor chips to extreme temperature variations with unparalleled accuracy. This innovation addresses critical challenges in the semiconductor industry, where precise thermal testing is essential for ensuring chip durability and performance under diverse operating conditions. Standard Parameters for Environmental Testing of Semiconductor Chips 1. Temperature Testing - Temperature Range: - Operating Range: -40°C to +125°C (common for industrial-grade chips) - Extended Range: -65°C to +150°C (for military/aerospace applications) - Thermal Cycling: - Rate of Change: 5°C/min to 20°C/min (depending on test standards) - Dwell Time: 10–30 minutes at extreme temperatures (to stabilize conditions) - Cycles: 100–1,000 cycles (per JEDEC, MIL-STD, or AEC-Q100) 2. Humidity Testing - Relative Humidity (RH): 85%–95% RH - Temperature: 85°C (commonly used in "85/85" testing for accelerated aging) - Duration: 500–1,000 hours (per JESD22-A101) 3. Thermal Shock Testing - Temperature Extremes: -55°C to +125°C (per MIL-STD-883G Method 1011) - Transition Time: <1 minute (liquid-to-liquid) or <5 minutes (air-to-air) - Cycles: 50–500 cycles 4. Vibration and Mechanical Stress - Frequency Range: 5 Hz–2 kHz (per MIL-STD-883) -Acceleration: 5–20 G (depending on application) 5. Other Critical Standards - JEDEC Standards (e.g., JESD22-A104 for thermal cycling) - AEC-Q100: Automotive-grade chip qualification - MIL-STD-883: Military/defense reliability testing - IEC 60068: General environmental testing guidelines These parameters ensure semiconductor chips meet industry requirements for performance under extreme conditions. Specific values may vary based on application (e.g., consumer electronics vs. automotive). Note: Always refer to the latest version of relevant standards (JEDEC, AEC, MIL-STD, etc.) for precise testing protocols. “Our optimized testing parameters push beyond traditional standards in three critical ways. First, we’ve expanded the temperature range to -70℃ to +175℃—far wider than the typical -40℃ to +125℃—to meet demands for power electronics and aerospace applications. Second, we accelerated thermal cycling rates to 30℃/min, slashing test time by half while maintaining precision, unlike the conventional 5–20℃/min approach. Third, we integrated multi-axis vibration (up to 50G) with extreme thermal shocks (-65℃↔+175℃in under 30 seconds), a combination rarely addressed in older standards like JEDEC or MIL-STD. These upgrades don’t just test chips; they future-proof them.” CEO said. “This patent underscores our dedication to pushing the boundaries of testing technology,” said a spokesperson form Lab Companion. “Our high-low temperature test chamber not only enhances efficiency but also sets a new standard for reliability in semiconductor quality control. Key Features and Advantages - Precision Control: The equipment offers precise temperature regulation, enabling rigorous testing across a wide range of thermal conditions. - Enhanced Durability: Designed to withstand repeated thermal cycles, the system ensures long-term stability and accuracy. - User-Friendly Operation: The accompanying methodology simplifies complex testing procedures, making it accessible for industrial applications. At the forefront of environmental test chamber technology, we combine constant innovation with market insights to develop advanced testing solutions for every industry. Market-proven through exceptional quality and service, we're motivated by your choice to push boundaries further every day. For more information about temperature test equipment, visit [High and low temperature test chamber] .
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