Lithium Battery Dry Rooms
Custom dry rooms from concept to delivery and beyond.
We offer custom, 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.
Twin Rotor LDP-2DW Series
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.
Benefits:
- Ease of positioning due to its compact size
- Single piece design results in lower installation cost
- Reduced pull down times and optimized energy consumption via the in-series internal heat recovery system.
- Supply dewpoint down to minus 80.0°Cdp
- Long life rotor seals to maximize performance.
- User friendly Siemens based touch screen interface
- Airflow ranges from 2,000 – 50,000 m³/h
- Customizable to individual customers requirements
- Up to 35% reduction in required reactivation power when compared to even the most efficient single rotor systems.
The 2DW series delivers market leading energy consumption, whilst achieving the ultra-low dewpoints required for next generation battery production.
Reduced operational costs
The LDP series focuses on delivering operators an energy efficient, low maintenance climate solution that has been targeted at the Battery research and production market. Energy usage is greatly reduced thanks to the hermetic construction and the use of multiple rotors that utilizes wasted heat, to further pre dry the incoming fresh air. Typical savings of over 35% can be achieved when compared to even the best single rotor desiccant dehumidifiers.
Case Study
Some of the features available
- Our standard DHU’s offer top of the line components from start to finish, but we understand that some projects require customization or added features. We offer a long list of available options including but not limited to:
- Stainless steel construction
- IDual rotor variant, optimized for large volumes of fresh air
- Heat recovery systems for maximizing energy efficiency
- Pre and Post Cooling
- Reactivation mediums including electric, steam, thermal oil, and HTHW
- Exterior installation compatibility
- HEPA filtration
- Single piece construction
The dryR team are always ready to work with you.
Case Study: The Ohio State University Dry Room Project
Overview
dryR recently completed commissioning on a major dry room project at The Ohio State University. Working with general contractor Whiting Turner, AEI as the project engineer, and Fishbeck as the commissioning agent, our LDP units were installed and tested to meet stringent environmental requirements.
Low Dew Point Dehumidification for Battery Dry Rooms
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 (Cdp) of minus 30.0°Cdp and below. Requirements are often expressed in dewpoints as the equivalent relative humidity is close to zero. Low dewpoint 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.
Protecting Battery Quality with Low Dew Point Control
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 maximize 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 minimize 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.
dryR’s Focus
Our 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.
Effects of uncontrolled humidity within battery dry rooms
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:
- Reduced product life
- Reduced performance and charging capacity
- Long term safety concerns including chances of explosion