ZRLK Interpretation: Safety and compliance of lithium-ion batteries for electric bicycles under GB/T 36972-2018 standard

With the rapid development of the electric bicycle market, lithium-ion batteries have become an important power source for electric bicycles because of their high energy density and lightweight characteristics. However, the safety of lithium-ion batteries has been a focus for consumers and manufacturers. In order to regulate the production and use of lithium-ion batteries for electric bicycles, the Standardization Administration of China has issued the GB/T 36972-2018 "Safety Technical Requirements for lithium-ion batteries for electric Bicycles" standard.

The main content of GB/T 36972-2018 standard

The GB/T 36972-2018 standard mainly covers the safety technical requirements of lithium-ion batteries for electric bicycles, including material selection, structural design, manufacturing process, performance testing and so on. The standard clarifies the basic safety requirements of lithium-ion batteries for electric bicycles, such as the safety performance under extreme conditions such as overcharge, overdischarge, short circuit, extrusion, and high temperature. In addition, the standard also specifies the battery's labeling, packaging, transportation and storage conditions to ensure the safety of the battery throughout its life cycle.

Safety requirements for lithium-ion batteries for electric bicycles

1, material selection and structural design: lithium ion battery anode and cathode materials, electrolyte, diaphragm and other key materials must meet the standard requirements to prevent the battery in the charge and discharge process of thermal runaway. The structural design should take into account the mechanical strength and tightness of the battery to prevent external impact and liquid intrusion.

2, manufacturing process: the manufacturing process should be strictly controlled welding, packaging and other key processes to ensure that the internal structure of the battery is tight, to prevent electrolyte leakage and internal short circuit.

3, performance test: The standard stipulates a series of performance tests, such as overcharge test, overdischarge test, short circuit test, extrusion test, high temperature test, etc., to verify the safety performance of the battery under extreme conditions. Companies should regularly perform these tests on batteries to ensure they meet standard requirements.

Compliance requirements for lithium-ion batteries for electric bicycles

1, product identification: lithium-ion batteries for electric bicycles should be clearly marked on the product of the battery model, capacity, production date, safety warnings and other information, so that consumers can identify and use.

2, packaging and transportation: the packaging of the battery should meet the standard requirements to prevent collision, extrusion and other conditions that may lead to battery damage during transportation. Avoid adverse environment such as high temperature and humidity during transportation.

3, storage conditions: The battery in the storage process should avoid high temperature, humidity, direct sunlight and other adverse environment, in order to prevent the battery performance decline and safety accidents.

Interpretation and suggestions of ZRLK

As a third-party testing and certification body, ZRLK has a deep understanding and practical experience of GB/T 36972-2018 standard. We recommend that electric bicycle manufacturers manufacture and test in strict accordance with the standard requirements to ensure that the product meets the safety and compliance requirements. In addition, when buying an electric bicycle, consumers should choose battery products that meet the standards, and use and maintain the battery correctly according to the instructions to ensure their own safety.

The implementation of the GB/T 36972-2018 standard is of great significance for improving the safety and reliability of lithium-ion batteries for electric bicycles. ZRLK will continue to be committed to interpreting and promoting relevant standards, helping enterprises and consumers understand and comply with standard requirements, and jointly promoting the healthy development of the electric bicycle industry. If you have relevant reporting needs, please contact ZRLK, we will provide you with professional testing and certification services.