CE certification is a crucial mark of conformity for energy storage lithium batteries sold within the European Economic Area (EEA). This certification demonstrates that the product complies with a wide range of European Union (EU) directives and standards aimed at ensuring safety, health, and environmental protection. For energy storage lithium batteries, the CE certification process involves a comprehensive assessment of multiple aspects.

Firstly, safety is of utmost importance. Batteries must meet strict requirements regarding electrical safety, including protection against overcharging, over - discharging, short - circuits, and thermal runaway. Specialized testing laboratories simulate various abnormal operating conditions to verify that the battery's built - in protection mechanisms function effectively. For example, overcharging tests involve continuously charging the battery beyond its rated capacity to check if the battery management system (BMS) can cut off the power supply in a timely manner to prevent potential hazards.

Secondly, electromagnetic compatibility (EMC) is another key area of evaluation. Energy storage lithium batteries should not emit excessive electromagnetic interference that could disrupt other electronic devices, and they must also be immune to external electromagnetic disturbances. EMC testing includes measuring the battery's radiated and conducted emissions, as well as its susceptibility to electromagnetic fields. Additionally, environmental requirements play a significant role. Batteries need to comply with regulations on hazardous substances, similar to the RoHS directive, ensuring that they do not contain excessive amounts of restricted materials such as lead, mercury, and cadmium.

Obtaining CE certification for energy storage lithium batteries is not only a legal requirement in the EEA but also a way to enhance market competitiveness. It gives consumers and businesses confidence in the product's quality and safety, facilitating smoother market access and trade within the European region.

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