In today's rapid development of the new energy vehicle and energy storage industry, the performance, safety and reliability of batteries, as core components, are directly related to the success or failure of the entire system. By simulating extreme temperature environments, high and low temperature test chambers have become an indispensable tool for battery quality testing and performance verification, escorting the progress of battery technology.

Batteries will face various harsh climate environments from extreme cold to high temperatures during actual use. By accurately simulating these conditions, the high and low temperature test chamber helps engineers verify the battery's performance in extreme temperatures, expose potential defects in advance, optimize battery design, and ensure safe and stable operation of the battery throughout its life cycle.

As a professional manufacturer in the field of environmental simulation test chambers, Danble Instruments has always been committed to technological innovation, and has launched a series of high and low temperature test chambers for battery testing needs, and its core advantages are reflected in:

1. Precise temperature control capabilities: Using advanced refrigeration systems and control algorithms, the temperature range can cover -70°C to +150°C, and the temperature control accuracy is up to ± 0.5°C to ensure accurate and reliable test conditions。

2. Fast temperature change rate: It supports rapid temperature change from 3°C/min to 20°C/min, which can simulate the temperature sudden change environment and efficiently verify the performance and stability of the battery under rapid temperature change 。

3. Innovative system design: The "One to Four Incubator Control System" developed by Danble Instruments has obtained patent authorization, which significantly improves the intelligence, flexibility and accuracy of temperature control through intelligent analysis of the appropriate operating parameters in the temperature regulation stage and the insulation stage, and ensures the reliability of lithium-ion battery performance test results 。

4. Comprehensive safety protection: In response to the potential risks of battery testing, Danble has developed battery explosion-proof boxes, which adopt explosion-proof design (such as double-layer explosion-proof glass doors, explosion-proof pressure relief valves), and are equipped with multiple safety protection systems (such as over-temperature protection, leakage protection, compressor overload protection, etc.) to ensure the safety of the testing process 。

5. Flexible Customizability: Available in a variety of specifications from benchtop to walk-in, the working chamber space can be flexibly customized according to the battery size (from single cells to battery modules and battery packs) to meet the needs of diverse test scenarios。

Key application scenarios of high and low temperature test chambers in battery testing

High and low temperature test chambers play an important role in the whole chain of battery research and development, production and quality control, and the main application scenarios include:

By simulating the charging and discharging cycles of batteries in extremely cold (such as -40°C) and high temperature (such as 80°C), the capacity and internal resistance of the battery are tested. Key performance indicators such as charge-discharge efficiency and cycle life。 For example, at a low temperature of -20°C, verify whether the BMS (battery management system) triggers the charging preheating protection as expected, limiting the charging current to avoid the risk of lithium preconcipitation .

The high and low temperature test chamber is the core equipment for battery safety testing. It can simulate a battery short circuit in a high-temperature environment (such as 60°C) to verify the speed at which the BMS cuts off the main loop (required ≤ 100ms) ; It can also be used to perform thermal abuse tests (e.g., baking at 130°C) , to evaluate the thermal runaway resistance and thermal spread inhibition performance of the battery.

The BMS is the "brain" of the battery, and its response accuracy and reliability in high and low temperature environments are crucial. The test chamber can be used to verify the monitoring accuracy of BMS on the temperature and voltage of the battery cell under extreme temperatures, as well as the effectiveness of the thermal management strategy 。 For example, in a cold start test at -30°C, evaluate whether the BMS's heating function can quickly raise the cell temperature to the operating range .

simulates the harsh climatic conditions that a vehicle or energy storage system may experience during actual operation, such as high temperature and humidity (such as 40°C/90% RH), low temperature and low humidity, temperature cycling, temperature shock, etc ， Evaluate the battery's environmental adaptability and long-term durability.

For the different needs of battery testing, Danble Instruments provides a comprehensive portfolio of high and low temperature test chambers:

• High and low temperature rapid temperature change test chambers: Suitable for test scenarios that need to simulate sudden temperature changes, the temperature change rate can reach 15°C/min, efficiently verifying the performance of batteries under rapid temperature changes 。

• Battery explosion-proof high and low temperature test chamber: designed for high energy density, high safety risk batteries, with explosion-proof structure and multiple safety protections, suitable for the safety verification of power batteries and energy storage batteries。

• Walk-in high and low temperature test chamber: provides a huge test space, which can be used to test large battery packs, battery modules or batch sample testing, and is widely used in vehicle-level high and low temperature cycle verification 。

• High and low temperature and low atmospheric pressure test chamber: simulate the low atmospheric pressure and low temperature environment in high altitude areas, suitable for the adaptability test of special batteries and vehicle batteries in the plateau environment.

Conclusion and Outlook

With the continuous evolution of new energy technology, the requirements for battery performance and safety will become increasingly stringent. Danble Instruments will continue to deepen its environmental simulation technology, and is committed to providing reliable testing guarantee for battery manufacturers, new energy vehicle manufacturers and scientific research institutions through higher precision, higher efficiency, and more intelligent high and low temperature test chambers, and jointly promoting the safety and sustainable development of the new energy industry.

If you want to know more about the application of high and low temperature test chambers in battery testing or need customized solutions, please feel free to contact Danble Instruments!