With the rapid development of electronic products market, polymer batteries have been more and more widely used because of their high energy density, lightweight and portable characteristics. However, the safety of battery transportation is also increasingly attracting the attention of national regulators. In order to ensure the safety of batteries during transport, the International Air Transport Association (IATA) stipulates that all lithium batteries must pass the United Nations Manual of Tests and Criteria, Part III, Section 38.3 (UN38.3) tests before transport. This article will detail the process, requirements and importance of polymer battery UN38.3 certification to help battery manufacturers better meet international standards and ensure safe product transportation.

UN38.3 Background and significance of certification

UN38.3 certification is one of the most stringent lithium battery safety testing standards in the world, designed to ensure that lithium batteries will not cause fire, explosion and other dangerous situations due to high temperature, impact, vibration and other external factors during transportation. The UN38.3 certification can effectively reduce the safety risks of batteries during transportation and protect the interests of airlines, logistics enterprises and end users.

UN38.3 Certified test items

The UN38.3 certification includes several test items covering the performance and safety of the battery under different environmental conditions. The main test items include:

1, height simulation test: simulate high altitude low pressure environment, test the safety performance of the battery under low pressure conditions.

2, thermal test: test the performance and safety of the battery in high and low temperature environments.

3, vibration test: simulate the vibration environment during transportation, test the structural stability and safety of the battery.

4, impact test: simulate the mechanical impact in transportation, test the impact resistance of the battery.

5, external short circuit test: test the safety of the battery under external short circuit conditions.

6, crash test: test the safety performance of the battery under collision conditions.

7, overcharge test: test the safety performance of the battery under overcharge conditions.

8, forced discharge test: test the safety performance of the battery under forced discharge conditions.

UN38.3 Authentication process

1, consultation and preparation: Battery manufacturers first need to contact professional testing and certification bodies to understand the specific requirements and processes of certification. As a professional testing and certification company, ZRLK can provide detailed consultation and technical support.

2, sample preparation: according to the test requirements to prepare a sufficient number of samples, and ensure that the samples meet the test standards.

3. Test implementation: Send the sample to the laboratory with UN38.3 test qualification for testing.

4, report review: After the completion of the test, the laboratory will issue a detailed test report. The manufacturer is required to review the report to ensure that all test items are passed.

5. Certificate application: Submit the test report to the certification body and apply for the UN38.3 certificate.

UN38.3 Importance of certification

1, meet international regulatory requirements: ensure that products comply with the International Air Transport Association (IATA) and the International Civil Aviation Organization (ICAO) regulations.

2, improve product safety performance: improve the safety performance of the battery during transportation, reduce the risk of accidents.

3, enhance market competitiveness: through the certification of products in the market recognition and trust is higher, help to expand the international market.

UN38.3 certification is an important guarantee for the safe transportation of polymer batteries. Battery manufacturers should attach great importance to this certification, and test in strict accordance with the test standards to ensure the safety performance of the product. If you have certification needs, please contact ZRLK, we will be happy to serve you.