“DR rooms” (or “Dry Rooms”) are controlled environments used in the production and testing of automotive batteries. These rooms are designed to maintain a very low humidity level, usually less than 5 percent, to ensure that batteries are not damaged by moisture.
The production of batteries for electric vehicles requires an extremely clean environment, as the presence of airborne particles can cause short circuits and damage to battery cells. Dry rooms are designed to maintain a low level of particulate matter in the air through filtration and ventilation systems.
Personnel working in D rooms wear protective clothing such as coveralls, gloves, masks, and shoe covers to prevent battery contamination. The equipment used is constantly cleaned and sterilized to ensure maximum hygiene.
Battery tests are conducted within the D rooms to ensure that the batteries meet the required quality and performance requirements. These tests may include life cycle, vibration resistance, and safety tests.
In summary, D rooms are controlled environments to maintain a low level of humidity used in the production and testing of automotive batteries. Battery production requires an extremely clean environment, equipment is constantly cleaned and sterilized, personnel wear protective clothing, and battery testing is conducted within DR rooms to ensure that batteries meet the required quality and performance requirements.