GB 31241-2022: Detailed technical standard for safety of lithium-ion batteries for portable electronic products

GB 31241-2022 is a mandatory national standard in China, the full name of the "Lithium-ion batteries and battery packs for portable electronic products Safety Technical Specification." The standard was originally published in 2014 and was revised in 2022 to be released as GB 31241-2022, replacing the older version. The standard is designed to ensure the safety of lithium-ion batteries and battery packs used in portable electronic devices and covers a wide range of products such as laptops, mobile phones, Bluetooth headsets and more.

Scope of application

GB 31241-2022 is suitable for lithium-ion batteries and battery packs used in all portable electronic products. These products include, but are not limited to, office equipment, communication tools, audio and video players, digital cameras, game consoles, etc. The application of this standard is broad and covers most portable electronic products on the market.

Safety requirement

This standard specifies in detail the safety standards that the battery must meet during the design, manufacturing, and testing phases. Specific requirements include but are not limited to:

1, capacity test: to ensure that the battery has a stable and reliable capacity output under different conditions of use.

2, pretreatment: standardize the pretreatment procedure before the battery is manufactured and used to ensure that the initial state of the battery meets the safety requirements.

3, safe working parameters: clear the safe working range of the battery under normal and abnormal use conditions, including temperature, voltage, current and other parameters.

4, charge and discharge procedure: the battery charge and discharge procedure is specified to ensure the safety and stability of the battery in the charge and discharge process.

5, electrostatic discharge test: test the safety performance of the battery in the electrostatic discharge environment to prevent battery failure caused by static electricity.

Test item

GB 31241-2022 also involves many aspects of battery performance, safety, environmental adaptability and other test projects. These tests are designed to ensure the stability and safety of the battery under different use environments and conditions, including but not limited to:

1, performance test: evaluate the capacity of the battery, charge and discharge efficiency, cycle life and other performance indicators.

2, safety test: test the battery in short circuit, overcharge, overdischarge, high temperature, low temperature and other extreme conditions of safety performance.

3, environmental adaptability test: evaluate the stability and reliability of the battery under different environmental conditions.

Mandatory certification

According to the relevant update, from 2024, all lithium-ion batteries and battery packs for portable electronics must be certified in accordance with the new GB 31241-2022. Products that do not pass the certification will not be legally sold on the market. This mandatory certification not only ensures the safety of the product, but also is a sign of product quality and safety reputation.

Market impact

For manufacturers, compliance with GB 31241-2022 is a necessary condition for entering the Chinese market. This is not only about market access for products, but also the guarantee of product quality and safety reputation. Through the certification of this standard, enterprises can enhance the competitiveness of products and enhance the trust of consumers.

significance

The implementation of GB 31241-2022 will help reduce safety incidents due to battery failures and protect consumer safety. The implementation of mandatory standards has promoted the overall safety level of the industry and promoted the standardized development of battery technology. For consumers, this standard has become a reference for the purchase of safe battery products, increasing trust in product safety performance.

GB 31241-2022, as a mandatory national standard, sets strict standards for the safety of lithium-ion batteries and battery packs for portable electronic products, and has important guiding significance and legal binding for production, sales and consumers. If you have this certification requirement, please contact zrlk!