We offer bespoke, turnkey packages for battery dry rooms in conjunction with our trusted partners. We can work with you from initial concept, through design and delivery to ensure the end result meets your needs. On completion, we offer through life cycle support in the form of maintenance packages and technical support.
Specifically designed for use in low dewpoint applications the 2DW range represents the most compact twin rotor low dewpoint units available on the market today.
The DRYAIR team are always ready to work with you.
Installed in 2023 within a new battery chemistry research facility. Achieving an impressive supply dewpoint of minus 79.3°Cdp. This new series from DT Group allowed for a 35% reduction in required reactivation energy over even the most efficient single rotor systems available.
-Ultra compact dual rotor unit for low energy consumption
-Room/Airlock Cascade system via DRYBLADE®
-New design allows for standard CHW temperatures for increased efficiency
Lithium battery production, takes place in controlled environment rooms now commonly referred to as “Dry Rooms”. Classified as requiring relative humidity (RH) <1% or dewpoints (tdp) of minus 30.0°Cdp and below. Requirements are often expressed in dewpoints as the equivalent relative humidity is close to zero. Low dew point dehumidification systems are the crucial element required in lithium battery production. Dewpoint requirements within dry rooms, currently range from minus 30.0˚Cdp to as low as minus 60.0°Cdp, this point is measured in the return air stream as represents the average across the room. At critical areas such as electrolyte fill, the supply dewpoint required can be as low as minus 80.0°Cdp.
Low dew point dehumidification systems are the crucial factor required to prevent the lithium from absorbing moisture vapor from the air.
Violations of parameters, particularly at critical stages of production, such as electrolyte fill, will lead to a decrease in the quality of the Li-ion battery. To maximise product quality, microclimates are often created at critical production points, where the moisture level in the air should be close to zero as possible.
The next generation of batteries currently in design, are showing an increasing demand for even lower dewpoints of minus 80.0°C and below, as such, energy consumption for maintaining the Dry Rooms, will continue to form a significant part of the cost of producing lithium-ion batteries.
To minimise this production cost, the dry rooms should be constructed in a manner to reduce infiltration, to as low as practicable. Crucially, the room air drying systems, should be designed to be as energy efficient as possible, and should be able to react quickly to changing external conditions.
Dryair's focus is the deployment of energy efficient dual rotor, desiccant dehumidifier technology, to provide the continuous supply of low dewpoint air into Dry Rooms. These innovative designs are now the new benchmark across the battery industry.
During production, Lithium batteries can be severely affected by exposure from uncontrolled temperature, this ultimately will lead to impacting on the final quality of the battery through: