The Dianshi Instrument Integrated Test Chamber is capable of simulating multiple coupled environmental factors (such as temperature, pressure, atmosphere, etc.) to conduct various types of tests on batteries, including nail penetration, crush, overcharge, over-discharge, short circuit, thermal cycling, ignition, and fire extinguishing. It is designed for comprehensive performance testing of individual battery cells and small battery modules.

Currently, new energy vehicles remain a highly popular category in China's major consumer markets. After several years of market fluctuations, the new energy electric vehicle industry has evolved from the initial stage of "numerous players vying for prominence" to a phase dominated by a few key competitors, who are consolidating their positions while seeking steady expansion.

However, reports of sudden accidents involving electric vehicles, often followed by rapid fire outbreaks, have sparked widespread discussion among consumers. These incidents serve as a clear warning to the industry: the development of new energy vehicles must prioritize safety above all else, ensuring that consumers can drive with genuine peace of mind. Battery safety, in particular, stands as a critical baseline that must be rigorously upheld.

Indeed, lithium-ion batteries are widely used in new energy electric vehicles due to their advantages such as high energy density, compact structure, and lightweight design. However, finding the optimal balance between safety and high energy density has become a critical challenge that the entire electric vehicle industry chain must address collectively.

Research on the safety performance of lithium batteries requires conducting experiments under various environmental conditions and triggering scenarios. This includes testing under different temperature, pressure, and atmospheric conditions, as well as in simulated scenarios such as nail penetration, crush, overcharge, over-discharge, and thermal runaway. The experimental process should allow for the analysis of characteristic changes during pyrolysis, combustion, and explosion. It should also involve collecting and analyzing reaction gases to detect products and exporting experimental data for further study.

The 82L Integrated Battery Test Chamber developed by Dianshi Instruments, as an experimental device equipped with the aforementioned functions, is capable of simulating environmental conditions such as temperature, humidity, and atmospheric pressure found in natural settings, as well as physical damage, abnormal charge-discharge cycles, fire incidents, and other special scenarios. By integrating current national and international standards, the 82L Integrated Battery Test Chamber can simulate and evaluate the combined effects of multiple external conditions on batteries.

Based on current major national and international standards, and considering the feasibility of integrating multiple external conditions, the key design parameters of the 82L Integrated Battery Test Chamber launched by Dianshi Instruments are as follows：

The experimental chamber and the refrigeration/heating unit (a schematic diagram of the chamber structure is provided below):

Compared to the vast majority of single-function battery testing equipment available on the market, the most significant advantage of the 82L Integrated Battery Test Chamber lies in its ability to combine multiple external conditions. This enables comprehensive simulation of the various complex environments that may be encountered in real-world scenarios, making the experimental results more authentic and reliable. The combinable integrated environmental testing conditions are detailed in the table below:

Note: In each independent experiment, the environmental conditions are combined as follows:

1. Low pressure or high pressure (choose one).

2. High ambient temperature, low ambient temperature, or localized high temperature (choose one).

3. Oxygen-rich, oxygen-deficient, or protective atmosphere (choose one).

4. Pressure, temperature, and atmospheric conditions can be individually combined with the test scenario (e.g., short circuit + low ambient temperature) or applied in multiple overlapping combinations (e.g., nail penetration + high pressure + high ambient temperature + oxygen-rich atmosphere).

5. The symbol "" indicates that the conditions cannot be combined.

The 82L Integrated Battery Test Chamber is suitable for testing individual battery cells and small modules with external dimensions not exceeding 200mm (length) × 200mm (width) × 70mm (height).

For larger-sized modules and battery packs, Dianshi Instruments offers large walk-in integrated battery test chambers. These chambers can accommodate additional battery testing requirements beyond those covered by the 82L model, including drop tests, heavy impact tests, vibration tests, salt spray tests, seawater immersion tests, and more.

Ensuring battery safety is fundamental to enabling new energy vehicles to travel "farther" and providing consumers with peace of mind while driving. Guaranteeing battery safety relies not only on technological advancements and breakthroughs in material science but also on robust and reliable safety testing to serve as the final safeguard.

The 82L Integrated Battery Test Chamber developed by Dianshi Instruments offers comprehensive functionality and closely simulates real-world risk scenarios, making it a trustworthy device for battery safety testing. Based on this testing platform, it can better support the development of advanced batteries and breakthroughs in thermal runaway suppression technologies, empowering the new energy vehicle industry to continually earn market trust.