Battery Charge & Discharge Test Chamber

The battery charge & discharge test chamber is a device specially designed for charging and discharging safety tests on batteries ( such as lithium-ion batteries).

Sanwood's Battery Charge-Discharge Chamber provides a complete, turnkey solution for testing battery cells, modules, and packs. It seamlessly combines a precision climate chamber with a high-performance battery test system, enabling synchronized environmental and electrical stress testing in a single, reliable platform.

• •The integrated design saves laboratory space while simplifying installation and operational procedures.
• •Delivers rapid temperature cycling across an extensive range from extreme cold (-70°C) to high heat (+180°C).
• •Within a closed system, precisely synchronize temperature changes with high-accuracy charge-discharge cycles.
• •Eliminate data desynchronization issues common with separate devices, ensuring each voltage and current data point carries an exact temperature tag for indisputable data integrity in analysis.

The explosion-proof test chamber for charging and discharging batteries is widely used in battery manufacturing, research and development, quality inspection and safety assessment, and is especially important in the safety verification of lithium-ion batteries used in electric vehicles, energy storage systems and consumer electronics. Its test uses are as follows:

• •Charge and discharge operation: During the test, the battery explosion-proof test chamber can charge and discharge the battery, simulating various states of the battery in actual use, so as to more accurately evaluate its performance.
• •Overcharge and over-discharge test: Battery explosion-proof test chambers are often used to conduct overcharge and over-discharge safety tests on batteries. Placing it in an explosion-proof chamber and connecting it to a charge and discharge tester can ensure the safety of the test process even if the battery fails under extreme charging or discharging conditions.
• •Short-circuit protection performance: The battery explosion-proof test chamber simulates a battery short-circuit to test whether the battery’s short-circuit protection mechanism is effective and how the battery reacts after a short circuit.

charge and discharge battery explosion-proof test chamber should be able to perform reliability tests on the battery, such as cycle life test, storage life test, etc. These tests can evaluate the reliability of the battery under different usage conditions to determine the service life and safety of the battery.

• •IEC 60086-4: Safety standard for lithium batteries, Part 4 of primary batteries, about the safety of lithium batteries , including altitude simulation test, thermal cycle test, external short circuit test and thermal abuse test.
• •SAE J2464: Guidelines for safety and abuse testing of rechargeable energy storage systems for EVs and HEVs , including thermal stability testing and temperature cycling testing.
• •IEC 62233: Electrical safety in the workplace - Explosion protected equipment.This standard specifies the requirements for explosion-protected equipment, including batteries, in hazardous areas.
• •UL 913: Standard for Safety for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, Division 1, Hazardous (Classified) Locations. The three-layer battery explosion-proof test chamber also complies with testing standards such as EN 60079, IEC 62233,SAE J2929, UN/DOT 38.3,IEC 62133,IEC 62660-2, etc

The control system of the Sanwood test chamber adopts the world's leading software and hardware system to ensure that the test chamber operates under preset conditions, provide accurate and reliable experimental data, and help users achieve precise control and data collection of various experimental conditions.

• •Controller: It adopts the controller imported from South Korea Sanwon and the self-developed control system, which can be equipped with Siemens control system and equipped with RS232, RS485 and Ethernet communication ports.
• •Programmable control: It supports setting experimental programs, such as heating, cooling, constant temperature time, etc., and can execute multiple program settings, and supports advance reservation startup function.
• •Multiple languages optional: English, Korean, Russian, Chinese and Japanese.
• •Remote monitoring: Using network remote technology to achieve remote control, the test chamber can be monitored at any time, and the current data can be viewed through the user's PC and mobile phone, which improves the convenience of testing. The specific control system of the test chamber will vary depending on the model. Please read the "Sanwood Environmental Test Chamber Manual" carefully before use and comply with the safety operating procedures.

The refrigeration system of the test chamber is a complex and important system. The stability of the refrigeration system is crucial to the accuracy and reliability of the test results.

• •Sanwood Technology has developed a refrigerant hot gas defrosting technology, which effectively melts the frost on the evaporator by injecting high-temperature and high-pressure refrigerant steam into the heat exchanger in the test chamber. This not only ensures that the evaporator does not frost, but also greatly reduces the energy consumption of the equipment.
• •The refrigeration unit adopts an internationally renowned brand.
• •Optimize the layout of the refrigeration system, and adopt VRF (refrigerant flow control) technology based on the PID cold end output principle to achieve low-temperature energy-saving operation, which can reduce energy consumption by 30% under low-temperature conditions.
• •The refrigeration system adopts a modular design, with low failure rate, few welding points, high refrigeration efficiency, good reliability, simple maintenance, and low maintenance cost.
• •Optional CO₂ refrigeration system, GWP=1.