Battery Charge-Discharge Test Chamber

• •Exothermic Heat Suppression: High-rate charging and discharging generate massive internal cell heat. The ultra-responsive mechanical cooling loop instantly counteracts these sudden temperature spikes, preventing localized overheating and thermal runaway cascading.
• •Hardware-Level Cycler Interlocks: Features dedicated safety I/O channels that communicate directly with your external battery test bench. If gas sensors detect anomalies or temperatures exceed thresholds, the chamber forces an instant emergency shutdown of the cycler's power supply.
• •Isolated Lead Routing: Outfitted with specialized, spark-free, and gas-tight access ports on both layers to safely route high-current charge-discharge cables without compromising the internal test atmosphere.

• •Automotive Cell Screening: Running continuous, high-current charge-discharge life cycle tests on next-generation EV cells before pack integration.
• •Consumer Electronics R&D: Simulating rapid fast-charging thermal profiles for smartphone, laptop, and wearable pouch cells.

• •Solid-State Battery Laboratories: Evaluating the strict environmental boundaries, temperature coefficients, and safety thresholds of experimental high-energy cell chemistry.

• •High-Throughput Testing Facilities: Utilizing the stacked double-layer footprint to double the testing capacity of commercial battery validation labs within a limited physical footprint.

• •UL 2580: Staging critical cell-level overcharge, over-discharge, and thermal abuse tests required for EV battery certification.
• •SAE J2464: Severe electric vehicle battery abuse simulation under synchronized environmental and electrochemical stress.
• •IEC 62133: Mandatory safety testing for portable sealed secondary lithium cells under continuous charge-discharge cycles.

• •UL 1642: Comprehensive safety qualification for technician-replaceable and user-replaceable lithium battery cells.

• •UN 38.3: Verifying cell stability through extreme thermal cycling, vibration, and altitude simulation prior to international transport.

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.