Drying rooms are critical to lithium-ion battery manufacture to ensure that the electrodes are prevented from absorbing moisture, which can lead to a reduction in lifespan and even catastrophic failure (writes Peter Donaldson).
Running these dry rooms typically takes a lot of energy, mostly to provide hot air. However, Danish company Cotes has developed a much more efficient way it calls Exergic Technology to do this that significantly reduces the battery’s overall carbon footprint.
Understanding humidity is key to getting rid of unwanted moisture from air, and warm air holds more water than cold air.
Absolute humidity is the amount of water vapour in a given mass of air, and is typically expressed in grams per kilo. Relative humidity, meanwhile, is the amount of water in the air expressed as a percentage of the maximum it can hold at a given temperature. When that percentage exceeds 100, the water begins to condense out. More…