International. Vaisala notes that the ambient dew point temperature in dry rooms is generally kept between -30°C and -40°C, and these low humidity levels are controlled by high-quality dryers.
According to the company, this is one of the most energy-intensive parts of the battery manufacturing process, so minimizing drying is critical for energy efficiency.
Safety is the most important thing for all battery factories, but an important aspect is the control of environmental conditions, such as the
temperature and humidity, which guarantees the quality, safety and durability of battery cells, especially those based on technologies such as
lithium, nickel-cadmium and other advanced technologies.
That is why its production is carried out in highly controlled environments with extremely low humidity, which helps in chemical stability,
safety and battery life, especially in the context of the Mexican market, where weather conditions can vary significantly.
During the intermediate stage of manufacturing, which involves electrode production, assembly, and cell completion, humidity control is significant.
These steps occur in a sealed booth or container (known as a glove box) and in dry rooms and cabinets, where humidity control is vital to prevent unwanted reactions such as the formation of lithium hydroxide and hydrogen gas, the formation of hydrogen fluoride (HF), and the generation of corrosive byproducts by the electrolyte. That's why stable, fast-responding dew point probes are required to help improve safety, performance, and energy efficiency.
It is worth mentioning that the ambient dew point temperature in dry rooms is generally maintained between -30°C and -40°C, and these low humidity levels are
controlled by high-quality dryers. This is one of the most energy-intensive parts of the battery manufacturing process, so minimizing drying
Excessive energy efficiency is critical to the energy efficiency of a manufacturing plant.
But why is it so important to monitor the temperature of the battery? According to Ricardo Parada, Sales Manager of Vaisala, the failures in the battery and its connection circuits
can affect battery temperature: "Manufacturers use a large number of sensors throughout their processes to measure, monitor, and control humidity levels. The cost of these is negligible compared to the value of the assets and products they protect. However, it is vital that the sensors are stable over the long term, in order to implement an effective program of calibration checks."
A key factor when choosing dew point sensors is the availability of proven reliability. This means that sensor suppliers must be able to
demonstrate long-term accuracy and stability, over many years and in a wide range of changing environments. That is why the most important function of the
Calibration is comparing the results to a known standard.
"There are a variety of calibration options for dew point sensors in battery manufacturing facilities, such as wearable devices
available for quick and convenient spot checks and on-site calibrations. The advantage of this method is that it is not necessary to remove the probes from the
process and downtime can be minimized. In addition, some devices, such as Vaisala's Indigo80, can be used as a reference probe and sent
for full factory calibration with a certificate for full calibration traceability."
The executive comments that today, the most widely used measuring device for monitoring and controlling dryers is a dew point sensor based on
Thin-film polymer technology. Previous instrumentation suffered from drift, especially at low humidity levels, but the development of technologies
as Vaisala's DRYCAP has enabled accurate, stable and fast-responding dew point measurement with minimal drift.
"Vaisala's measurement solutions help manufacturers produce more high-quality products in a more sustainable and cost-effective way. The efficient
In-line measurement data helps to optimize processes, which reduces production costs. Our trusted products tolerate the most
and aggressive chemicals," he concludes.
