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Cotes Ultradry adsorption dehumidifiers

Energy-Efficient Dry Rooms for Battery Manufacturing

Choose the most energy-efficient and sustainable dry-air solution for your battery dry room.

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The Right Way To Dry

Cotes Ultradry
adsorption dehumidifiers

Battery dry rooms play a vital role in the battery industry, ensuring optimal performance by maintaining low humidity levels, preventing moisture-related issues, and promoting consistent manufacturing processes. Maintaining a constant and ultradry humidity level requires a lot of energy. Battery dry rooms represent 43% of the total energy used in battery production process.
 
With Cotes Ultradry adsorption dehumidifiers, you can cut that energy consumption dramatically and source the remaining energy from sustainable energy sources.

Cotes' energy-efficient solutions can drastically reduce energy usage in battery manufacturing. This not only leads to direct cost savings but also lessens the need for large-scale investment in green energy production, aligning operational efficiency with true environmental stewardship.

85%


Energy-efficient solution reducing electrical energy consumption up to 85%

50%


Reducing total cost of ownership, CAPEX and OPEX, up to 50%

-120°C


Optimum humidity control with dew points as low as -120°C

+150

Number of battery dry rooms around the world using Cotes ultradry adsorption dehumidifiers

cotes ultradry adsorption dehumidifiers

Energy-efficient dry-air solutions

Energy-efficient solution reducing electrical energy consumption up to 85%


Reducing total cost of ownership, CAPEX and OPEX, up to 50%


Optimum humidity control with dew points as low as -120°C


Sustainable solution using renewable energy sources


Cotes Ultradry Adsorption Dehumidifiers

Making battery production more sustainable

With Cotes Ultradry adsorption dehumidifiers, you obtain high energy savings, reduce costs, and use sustainable energy sources.

Contact our highly skilled team and learn more about the right way to dry your battery dry room for the highest energy efficiency.

32K

Each unit is designed to handle large volumes of air of up to 32.000 m3/h

Why Cotes

Performance and Reliability

  • In-house design, R&D, and production
  • ISO9001 certified
  • Stainless steel construction for top quality
  • Customized units handling up to 32 000 m3/h
  • Proven track record
  • Made in Europe

 

Cotes Ultradry

Features

Discover our extensive selection and let us find the right way to dry for you. Our Cotes Ultradry consist of one main and one intake module.

 

Main Module

 

Minimum airflow

3300 - 8000 m3/h

Maximum airflow

15000 - 34000 m3/h

Connected load

52 - 110 kW

 

 

Intake Module

 

Minimum airflow

1500 - 8000 m3/

Maximum airflow

5000 - 20000 m3/h

Connected load

78 - 175 kW

BM_Ultradry_Datasheet 3 rotors_31072023

Looking at the data

Current Process Energies of Li-ion Battery Cell Production

The graph below shows the different sources’ energy contributions to the total cell production and battery pack assembly energy in a typical battery manufacturing facility represented as Index 100. [SOURCE] Data from Yuan et al. (2017).

BM_Exergic Flow and Energy Consumption Graph_20231130 (1)-2

CALCULATE YOUR ENERGY SAVINGS FOR YOUR BATTERY DRY ROOM

This calculator uses dynamic energy prices and your dry room data to calculate how much energy you can save. By choosing the right way to dry you can obtain high energy savings with up to 92% compared to conventional dehumidifiers.
 
 
BM_Ultradry_Made in EU_Blue_14082023

Enter your dry room data:

1 H
8760 H

How many hours a year is your dry room operational? In other words, how many hours a year is your dry room staffed and producing batteries?

0
0.2

Conventional systems are dependant on ice water that requires more energy to generate. To dry a dry room you need both a heating and cooling source. What is your cooling source price in EUR/kWh?

0
0.2

Conventional systems are limited to either electricity and/or gas as a regeneration heating source. Cotes Exergic Technology however makes it possible to select a combination of sustainable sources of regeneration heating.

1
10

Because dry rooms operate at extremely low dew point it makes a big difference how many people work in the dry room at one time. 

-120 °C
-25 °C

What is your prefered nominal operating dew point inside your dry room? Cotes Exergic Technology can reach dew points of -120°C in an unstaffed room, though we see most dry rooms only need to maintain a dew point of -60°C. 

Based on your data Cotes Exergic Technology can provide you with the following:
  • Dry air requirement
    0 m3/h
  • Annual energy consumption
    0 kWh

Compare Cotes Exergic with the competition

The issue with current non-Cotes dehumidification is their high dependency on only electricity and gas. Cotes Exergic Technology allows you to choose a combination of sustainable energy sources like:

  • Waste heat (District heating or waste heat from elsewhere in the li-ion battery production) 
  • Biomass or Biogas (if available and sustainable) 
  • Solar thermal panels 
  • CO Heat Pump used for both heating and cooling. Pay once and use twice. 
  • Electricity (From sustainable energy sources, i.e., wind power, hydropower, solar power and/or nuclear power) 
Cotes Exergic Technology can reduce energy consumption and costs. All you need is hot water

Depending on your sustainable source of energy to heat the hot water at 80°C-90°C in Cotes Exergic Technology, you can save up to 92% energy consumption in your dry room.

Get an overview of how much energy you can save by using Cotes Exergic Technology compared to our closest competitor.

ENTER YOUR EMAIL TO SEE YOUR RESULTS

Want a more detailed analysis?

Send us your contact details and our highly skilled team will reach out to find the right way to dry your battery dry rooms with Cotes Ultradry. 

 

how it works

Cotes Exergic Technology®

The challenge associated with existing non-Cotes dehumidification systems lies in their heavy reliance solely on electricity and gas, coupled with inefficient air-drying methods operating at very high temperatures. This combination creates an unstable and hazardous operating environment.

Cotes developed the Exergic Technology®, an innovative solution maximising energy savings by using three rotors and sustainable energy sources.

With the patented Cotes Exergic Technology®, you can utilise a combination of sustainable energy sources to achieve considerable energy cost savings and large carbon footprint reductions. All you need is hot water at 80-90°C heated by a sustainable energy source: 

  • Waste heat (from elsewhere in the li-ion battery production) 
  • Biomass or Biogas (if available and sustainable) 
  • Solar thermal panels 
  • CO Heat Pump used for both heating and cooling. Pay once and use twice. 
  • Electricity (From sustainable energy sources, i.e., wind power, hydropower, solar power and/or nuclear power) 
  • Gas ** 

Because the energy to heat the water can come from a combination of sustainable energy sources and can be changed in the future if the price of energy changes, it makes the Cotes Exergic Technology more sustainable and more future-proof. This flexibility is not possible if the dehumidifier is built for gas regeneration specifically.

**Cotes does not recommend or consider gas as a source of sustainable energy due to the environmental footprint. We recommend utilising energy for the hot water from sustainable or “green” energy sources instead. However, if gas is a requirement, the water can come from a central gas boiler. 

 

Cotes Energic flow diagram 2

WHY DEHUMIDIFICATION?

Moisture control

Moisture poses a significant challenge in battery production, as it can lead to corrosion, electrolyte degradation, and diminished battery performance. 

Safety Assurance

Battery production involves the handling of chemicals, solvents, and flammable materials. By maintaining a dry environment, you eliminate the risk of accidents and fires.

Optimised electrode performance

Moisture can cause oxidation or degradation of these materials, compromising electrode performance and overall battery reliability.

Consistent Manufacturing Processes

Fluctuations in temperature and humidity can introduce inconsistencies in the manufacturing process, leading to variations in battery performance and quality.

Low-cost sustainable batteries

LITHIUM-ION BATTERY FACTORIES CAN SAVE MILLIONS OF EUROS

From time to time, the discussion pops up on how green electric cars really are? We make the argument for cheaper lithium-ion batteries and a cheaper electric car through reducing energy use in the battery manufacturing process.
The challenge

When you don't have the right dry-air solution

To safely manufacture lithium-ion batteries you need a relative humidity of less than 1% because of the delicate chemistry involved. Maintaining this %RH is energy-intensive and costly if you don't have the right dry-air solution.

DANGEROUS GASSES

Lithium reacts intensely with water, forming dangerous combinations of lithium hydroxide, highly flammable hydrogen and heat

PRODUCT QUALITY ISSUES

Exposing lithium to humidity levels above 1% impacts quality, performance and lifespan of batteries

HIGH ENERGY COSTS

Energy expended to control humidity results in high operating costs and affects profit margins

PRODUCTION OUTPUT

Any humidity irregularities can affect your battery production and output

INCREASED COSTS

Service and maintenance costs increase to counter the effects of humidity without the right ultradry-air solution

Negative Environmental Impact

Inefficient processes that use excessive energy from unsustainable sources of energy only lead to further negative environmental impact

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