T/CNESA 1011-2024 Heat-Control Fire Equivalent Classification Test Method for Lithium-ion Battery Energy Storage Systems

Scope

Main technical content: The electrochemical energy storage industry has developed rapidly and has become an important link supporting the construction of a new power system. Lithium-ion batteries are widely used in energy storage systems due to their high energy density and good cycle performance. However, in recent years, fire and explosion accidents caused by thermal runaway of lithium-ion batteries have occurred frequently, and even fire spread and fire migration have occurred between different levels of energy storage systems. Their safety issues have attracted great attention and have become the main pain points restricting the safe and healthy development of the electrochemical energy storage industry. Therefore, in order to break through the key technical bottlenecks of fire prevention and control of thermal runaway in lithium-ion battery energy storage systems, this document quantifies and classifies the thermal runaway fire of lithium-ion battery energy storage systems from the perspective of fire equivalence, and provides a basis for the design of fire extinguishing and emergency response solutions for lithium-ion battery energy storage systems. Since lithium-ion batteries are still a relatively new hazardous source, this document is formulated to establish a universal test method for fire equivalence classification of lithium-ion battery energy storage systems, standardize testing instruments, testing methods, and measurement parameters, and provide guidance and basis for future fire equivalence classification tests of lithium-ion battery energy storage systems, thus promoting the safe and healthy development of electrochemical energy storage power stations.

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