IEC 62984-2:2020

Overview

IEC 62984-2:2020 is an international standard defining the safety requirements and test procedures for high-temperature secondary batteries intended for mobile and stationary applications. These batteries have a rated voltage up to 1,500 V. This standard excludes aircraft batteries and electric road vehicle propulsion batteries, which are governed under IEC 60952 and IEC 61982 respectively.

Developed by the International Electrotechnical Commission (IEC), IEC 62984-2:2020 ensures uniform safety protocols are implemented globally for high-temperature battery technology. The document addresses functional safety, mechanical robustness, electrical protection, and resistance to abnormal conditions through comprehensive testing methodologies.

Key Topics

• Scope and Definitions Detailed terminology and battery safety concepts are clearly defined to establish a common understanding for manufacturers, testers, and users.

• Environmental Service Conditions Specifies normal and special service conditions for stationary and mobile installations to reflect real-world operating environments for the batteries.

• Safety Requirements

  • Functional Safety: Battery management system reliability, protective management, and thermal management.
  • Mechanical Design: Enclosure durability to withstand external and internal stresses.
  • Electrical Safety: Protection against electrical shock under normal and single-fault conditions; requirements for insulation voltage, separation, spacing, and earthing.
  • Resistance to Abnormal Conditions: Overcharge, short circuit, external fire, internal overheating, flooding, and impact resistance.

• Safety Testing Includes type tests such as overcharge, short circuit, fire exposure, cell failure propagation, overheating, and drop tests. Routine and special tests like withstand voltage, insulation resistance, and immersion tests are also detailed.

• Marking and Documentation Requirements for battery data plate markings and documentation including instruction manuals and test reports to ensure traceability and compliance.

• Transportation, Installation, and Maintenance Guidelines ensuring safe handling and sustained performance after deployment.

Applications

IEC 62984-2:2020 applies broadly to high-temperature secondary batteries used in:

• Stationary Energy Storage Systems For grid stabilization, backup power, and renewable energy integration.

• Mobile Power Solutions Non-propulsion mobile equipment that relies on high-temperature batteries for operation and energy supply.

• Industrial and Commercial Installations Where reliable electrical energy storage under elevated temperature conditions is critical.

This standard plays a vital role in enhancing battery safety, minimizing risk of electrical hazards, thermal runaway, mechanical failures, and ensuring compliance with international safety regulations within battery manufacturing and deployment industries.

Related Standards

• IEC 60952 (All Parts) Governs battery safety requirements for aircraft batteries.

• IEC 61982 (All Parts) Covers batteries used for the propulsion of electric road vehicles.

• IEC 60335 Series Addresses general safety of electrical appliances and may complement battery requirements in consumer products.

• IEC 62133 Focuses on safety requirements for secondary lithium cells and batteries used in portable applications.

Summary

IEC 62984-2:2020 is a crucial international safety standard for high-temperature secondary batteries, supporting manufacturers and users with rigorous safety criteria and testing procedures. By ensuring compliance with this standard, stakeholders can improve battery reliability, enhance safety in both stationary and mobile applications, and align with global regulatory requirements. This fosters safer energy storage solutions, advances battery technology innovation, and mitigates potential hazards associated with high-temperature batteries.