IEC 61960-3:2017

Overview

IEC 61960-3:2017 is an international standard published by the International Electrotechnical Commission (IEC) that focuses on secondary lithium cells and batteries intended for portable applications. This standard, titled "Secondary cells and batteries containing alkaline or other non-acid electrolytes – Secondary lithium cells and batteries for portable applications – Part 3: Prismatic and cylindrical lithium secondary cells and batteries made from them", establishes specifications for performance tests, cell designations, markings, dimensions, and other critical requirements.

Adopted to provide clear criteria for purchasers and users, IEC 61960-3:2017 helps to evaluate the quality and reliability of prismatic and cylindrical lithium secondary cells and batteries supplied by different manufacturers. This standard covers portable applications such as hand-held, transportable, and movable equipment. It replaces the earlier 2011 edition as a technical revision, including important updates to address the evolving landscape of lithium battery technology.

Key Topics

Scope and Purpose

• Defines secondary lithium single cells and batteries intended for portable devices
• Targets prismatic and cylindrical lithium cells specifically
• Aims to harmonize performance evaluation standards for reliable battery procurement

Performance Tests

• Electrical tests including charging procedures, discharge performance at various temperatures, and high-rate discharge performance
• Tests for capacity retention and recovery after charging and long-term storage
• Endurance cycle testing to assess battery lifespan at different discharge rates
• Internal resistance measurement for both AC and DC components
• Electrostatic discharge (ESD) testing to verify electrical robustness

Designations and Markings

• Standardized rules for cell and battery identification
• Inclusion of critical markings for safe usage and traceability
• Requirements for documentation supporting design and production

Dimensions and Physical Specifications

• Detailed dimensional requirements for prismatic and cylindrical cells
• New annexes provide measurement methods for cells with laminate film cases
• Ensures mechanical compatibility and interchangeability

Storage and Capacity

• Introduces metrics for capacity after storage from manufacturing date
• Helps users estimate the expected performance decline if batteries are stored before use

Applications

IEC 61960-3:2017 is essential for stakeholders involved in designing, manufacturing, purchasing, and using lithium secondary cells and batteries in portable equipment. Common applications include:

• Hand-Held Equipment: Smartphones, tablet PCs, audio/video players, wearable devices
• Transportable Devices: Notebook computers, portable medical devices, handheld tools
• Movable Equipment: Wireless communication devices, portable measurement instruments

This standard ensures that lithium secondary cells used in these devices meet reliable performance benchmarks, promoting safety, longevity, and efficient battery use.

Related Standards

IEC 61960-3:2017 is part of the broader IEC 61960 series that covers secondary cells and batteries with alkaline or other non-acid electrolytes for portable use. It is closely related to:

• IEC 61960-1: General requirements and tests for lithium secondary cells and batteries
• IEC 61960-2: Specific requirements for different types or configurations of lithium cells
• Other IEC Electrical and Safety Standards: Including IEC 62133 (safety requirements for secondary lithium cells and batteries for portable applications) and IEC 62619 (performance requirements for larger lithium batteries)

For comprehensive compliance and compatibility, manufacturers and users often reference these standards collectively.

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