The Step-in Battery Pack Composite Salt Spray Test Chamber evaluates lithium battery corrosion resistance by simulating combined salt spray, humidity, and temperature environments. Featuring programmable test cycles, real-time monitoring, and compliance with UL 50/IEC 60068-2-52, it ensures durability validation for EVs, energy storage, and marine applications.
Relevant Standard Testing Requirements
1.1 The test object is a battery pack or system.
1.2 Conduct four experimental cycles with reference to the severity level (5) of GB/T2423.18.
1.3 The salt solution is prepared with sodium oxide (chemically pure, analytically pure) and distilled water or deionized water. Its concentration is (5 ± 0.1)% (mass fraction). Measure the pH value at (20 ± 2) °C, and the pH value should be between 6.5 and 7.2.
1.4 Put the test object into a salt fog chamber. Spray salt fog at a temperature between 5 °C and 35 °C for 2 hours. After the spraying is completed, transfer the test object to a damp heat chamber and store it for 20 to 22 hours at a temperature of (40 ± 2) °C and a relative humidity of (93 ± 3)%, which constitutes one cycle. Repeat this cycle three times, and then store the test object for 3 days under the standard atmospheric test conditions (temperature: 23 °C ± 2 °C, relative humidity: 45% to 55%), which constitutes one period. Repeat the test for four periods.
1.5 Requirements: There should be no leakage, shell rupture, fire or explosion in the battery pack or system.
Main Parameters
| Name of the equipment | Compound salt spray test chamber | |
| Model | MHY-1600M | MHY-012M |
| Inner box size (W*H*D) mm | 1000*1000*1600 (Excluding the spire) | 3000*2000*2000 (Excluding the spire) |
| Temperature range | 0ºC~60ºC | |
| Temperature fluctuation | ±0.5ºC (When it is empty) | |
| Temperature uniformity | ±2ºC (When there is no load) | |
| Salt water spray amount | 1 to 2mL/ eight cm² 1Hr (Collect for at least 16 hours,take its average) | |
| Spray pressure | 1kg/cm² It is adjusted in two sections, and the first time the compressed air adjust to 2kg/cm². Enter the saturated barrel for heating, the the second adjustment is 1kg/cm². | |
| Laboratory temperature range | 0ºC~60ºC |
| Humidity accuracy | Temperature resolution: 0.1ºC |
| Humidity range | 20%-98%RH |
| Temperature fluctuation | ±3%RH |
| Liquid medicine PH Value | Neutral 6.0~7.0 Acid 3.0~3.1 |
| Spray solution PH Value | Neutral 6.5~7.2 Acid 3.1~3.3 |
| Time range | 1S~9999H can be set arbitrarily |
| Control method | Device host and remote PC control, device body and console. Separate, can be controlled remotely, and the operator should stay away from the test area. The longest long-distance distance can reach 50 meters, and the standard line length is 10m. It can effectively protect the safety of testers. |
"Specialized chamber for lithium battery packs, conducting temperature/humidity cycling tests to assess reliability, performance, safety, and lifespan under simulated environmental conditions."
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