Ensure the highest quality and performance of rechargeable batteries
The green transition is accelerating the development of new innovations and applications for secondary batteries. Lithium-ion (li-ion) and sodium-ion batteries, and other battery chemistries, are used for powering electric vehicles (EV), battery energy storage systems (BESS), and a wide and growing range of consumer goods.
In manufacturing, electrode metals, electrolyte and manufacturing chemicals react to moisture, which requires stable and low or ultra-low dew point conditions in dry rooms, dry booths, glove boxes and inert atmospheres. Maintaining low or ultra-low dew point conditions is essential for safety, yield, and efficiency.
Manufacturing facilities - especially gigafactories - are enormous, and drying these controlled environments to specified dew points requires significant energy, as well as some of the processing steps, such as cathode drying.
How to operate dry rooms cost-efficiently and sustainably
1. Fast response is the only way to go
2. Simple is beautiful
3. Ecosystem thinking is wise
Trusted partner for midstream operations of lithium battery manufacturing
Vaisala offers key measurement parameters for critical operations in manufacturing.
Measure accurately and in real-time:
- temperature (T)
- dew point (Td)
- relative humidity (RH)
- chemical concentrations (nD)
The world-class measurements with technologically best-suited products especially for ultra-dry conditions and for critical filling and sealing operations are only available from Vaisala.
Technology comparison
Download technology comparison sheet and see how Vaisala's dew point probe compares to
CRDS' (Cavity Ring-Down Spectrometer) and Chilled mirror transmitters in the most demanding
operating environments, such as battery manufacturing.
Exclusive webinar with The Volta Foundation
Join to learn the best practices for installing, cleaning, and optimizing moisture sensors across various environments—from HVAC systems and R&D labs to pilot lines and full-scale manufacturing.
Dry room monitor and control
The goal of a dry room is to provide a safe working space free of contaminants, with moisture being the most significant. The typical dew point temperature is around -40°C Td/f, but can be as low as -70°C Td/f.
Manufacturing areas requiring dry conditions can be as large as 10 000 m² and require significant volume of air to be heated, cooled, and dried. Steady dry conditions are achieved and maintained by delivering a controlled volume of air at specified dew point. The desired dew point is achieved in the dehumidifier unit by adjusting the airflow speed across the desiccant wheel, and aided by Vaisala’s dew point probes. Vaisala’s fast-response dew point probes detect any humidity changes within a drum rotation without averaging, enabling true real-time control.
Vaisala's probes optimize dehumidifier unit efficiency by providing accurate, real-time data, reducing energy consumption, and contributing to more cost-effective battery manufacturing.

Efficient room-wide monitoring for maximum process efficiency
By placing the probes strategically and at adequate intervals, the dry room or cleanroom can be monitored efficiently, ensuring comprehensive control of your entire room, whatever the size.
The DMP1 is optimal for maintaining process reliability and correct dryness levels in battery and semiconductor manufacturing with Indigo300.

Midstream applications
Anode drying
Cathode drying
Dehumidifier control
Glove boxes
Dry booths and other inert atmospheres
NMP and other solvents
Reliability and simplicity in your critical battery manufacturing measurement points
Make smart choices, and reduce your workload and uncertainty in battery manufacturing by selecting accurate and reliable measurement instruments.
The benefits of a rapidly reacting probe in a battery manufacturing dry room
Drying is one of the costliest operations in a battery manufacturing dry room. Drying is also a delicate act as overdrying is expensive and underdrying is dangerous.
Learn why it all can fail if a dew point probe in a dryer reacts slowly.
WHY VAISALA
SAVE ENERGY
LOW DEW POINT COMPATIBLE
HOT/DRY/CHEMICAL PROCESSES
GATHER DATA AND PROCESS SAFELY
FULL OFFERING
SOLID STATE
Researching solid-state and beyond
Lithium-ion (Li-ion) batteries, lithium-sulfur (Li-S) batteries, sodium-ion batteries, and solid-state batteries.
Battery technology is evolving at an unprecedented speed in the quest to find more powerful, safer, and smaller products to satisfy the ever-growing demand. Despite the new advances, these new technologies are even more sensitive to humidity and require accurate control and monitoring.
Vaisala has ready solutions for R&D, laboratory, and scaling-up manufacturing. In cases where a measurement need is identified but lacks a suitable instrument, we find solutions.
Partner with the most trustworthy measurement provider for reliable results and safe experiments, and prepare future developments with the best-in-class humidity and dew point probes.

Hydrometallurgical recycling
Valuable metal recycling is one of the key aspects of reaching a circular economy in secondary battery manufacturing. New innovations and technologies are emerging to enable high metal recovery rates economically and sustainably. One such innovation is the hydrometallurgical recycling process that recovers metals through chemical process, such as leaching.
Moisture control remains critical throughout recycling, as lithium reacts with moisture and requires precise dew point monitoring to ensure safety and efficiency. Vaisala’s products provide critical data, prevent material degradation and ensure safe processing conditions.
Ensure safe processes with Vaisala.

Battery manufacturing related products

Dew Point Probe DMP1

Miniature Dew Point Transmitters DMT143 & DMT143L (Long)

Dew Point Transmitter DMT152

Barometric pressure measurements with Indigo520 Transmitter

Indigo80 handheld measurement device

Relative Humidity and Temperature Probe HMP7

Dew Point and Temperature Probe DMP5

Dew Point Probe DMP6

Dew Point and Temperature Probe DMP7

Dew Point and Temperature Probe DMP8

Intrinsically Safe Humidity and Temperature Transmitter Series HMT370EX

Vaisala Polaris™ PR53GC Process Refractometer

Vaisala Polaris™ PR53GP Process Refractometer
Upstream processes in lithium-ion battery manufacturing
Measure aggressive chemical concentrations in mining operations.
Downstream processes in lithium-ion battery manufacturing
Monitor temperature and relative humidity seamlessly in downstream operations.

Contact us
Interested to receive more information on a specific application or product? Drop us a line, and we'll get back to you!