The core processes in lithium-ion battery manufacturing such as electrode manufacturing (steps 2 and 7) and battery cell assembly (step 8) are performed in the Clean rooms and Dry rooms, commonly called C&D rooms. In this article, we will deeply consider the peculiarity and challenges of clean and dry rooms in battery manufacturing.
Dry rooms needed for manufacturing lithium based batteries are not simply modified “clean rooms” or large “environmental chambers”. John Pinho, President of NeoTech explains.
These classes belong to the middle class of cleanliness. But besides the cleanness, the process room in battery manufacturing shall be dry. A dry room is a premises with a controlled low moisture level in the air.
These cleanrooms are engineered to maintain extremely low levels of humidity, often below 1% RH (relative humidity), to ensure the safe and precise handling of lithium-ion battery components. The absence of moisture is crucial as it prevents the risk of thermal runaway or explosions that can occur when moisture interacts with lithium-ion materials.
A clean room is an engineered space designed to maintain a very low concentration of airborne particulates. It is characterised by its isolation, contamination control, and continuous cleaning to achieve the desired level of cleanliness.
Now let's look at the requirements for battery production, which is a typical use of a dry room. Because of the material sensitivity, solid-state battery dry rooms may need humidity controlling to minus 40.0°Cdp at the point of return.
Micropower Group AB. Idavägen 1 352 46 Växjö Sweden +46(0) 470 72 74 00 [email protected] support@micropower-group Micropower Support Center